Addison
Addison municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterIllinois city directory
Illinois city water reports and filtration guides
Search 298 city pages by name or regional market. Each page identifies provider, source-water and ZIP research starting points while requiring address-level verification.
Utility boundary reminder: A mailing city and ZIP code do not prove the public water system. Confirm the supplier and PWSID on the current bill.
Aledo
Aledo public water system
Mercer County · Mississippi River surface water or municipal groundwaterAlgonquin
Algonquin public water system or regional supplier
McHenry and Kane County · Fox River, groundwater or purchased regional waterAlsip
Alsip municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterAlton
Alton public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterAnna
Anna public water system or regional supplier
Union County · Regional surface water, reservoir supply or groundwaterAntioch
Antioch public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterArlington Heights
Arlington Heights municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterAurora
City of Aurora Water Production Division
Kane, DuPage, Kendall and Will County · Blended Fox River and groundwater sourcesBarrington
Barrington municipal distribution system or regional wholesale supplier
Lake and Cook County · Purchased or directly treated Lake Michigan surface waterBartlett
Bartlett public water system or regional supplier
Cook, DuPage and Kane County · Fox River, groundwater or purchased regional waterBartonville
Bartonville public water system or regional supplier
Peoria County · Groundwater or Illinois River regional surface waterBatavia
Batavia public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterBeach Park
Beach Park public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterBeecher
Beecher public water system or Kankakee regional supplier
Will County · Kankakee River surface water or municipal groundwaterBelleville
Belleville public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterBellwood
Bellwood municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBelvidere
Belvidere public water system
Boone County · Municipal groundwater wellsBensenville
Bensenville municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterBenton
Benton public water system or regional supplier
Franklin County · Regional surface water, reservoir supply or groundwaterBerwyn
Berwyn municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBethalto
Village of Bethalto public water system
Madison County · Municipal groundwater wellsBloomingdale
Bloomingdale municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterBloomington
City of Bloomington public water system
McLean County · Reservoir surface waterBlue Island
Blue Island municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBolingbrook
Bolingbrook public water system or regional supplier
Will and DuPage County · Groundwater or purchased regional supplyBourbonnais
Aqua Illinois – Kankakee system or local distribution system
Kankakee County · Kankakee River surface waterBradley
Aqua Illinois – Kankakee system or local distribution system
Kankakee County · Kankakee River surface waterBraidwood
Braidwood public water system or regional supplier
Will County · Groundwater or purchased regional supplyBridgeview
Bridgeview municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBroadview
Broadview municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBrookfield
Brookfield municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBuffalo Grove
Buffalo Grove municipal distribution system or regional wholesale supplier
Lake and Cook County · Purchased or directly treated Lake Michigan surface waterBurbank
Burbank municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterBurr Ridge
Burr Ridge municipal distribution system or regional wholesale supplier
DuPage and Cook County · Purchased or directly treated Lake Michigan surface waterByron
Byron public water system
Ogle County · Municipal groundwater wellsCahokia Heights
Cahokia Heights public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterCairo
City of Cairo or local public water system
Alexander County · Provider-dependent municipal supplyCalumet City
Calumet City municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterCanton
Canton public water system or regional supplier
Fulton County · Groundwater or Illinois River regional surface waterCarbondale
City of Carbondale public water system
Jackson County · Cedar Lake surface waterCarlinville
Carlinville public water system
Macoupin County · Groundwater or reservoir surface waterCarmi
Carmi public water system or regional supplier
White County · Regional surface water, reservoir supply or groundwaterCarol Stream
Carol Stream municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterCarpentersville
Carpentersville public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterCarterville
Carterville public water system or regional supplier
Williamson County · Regional surface water, reservoir supply or groundwaterCary
Cary public water system
McHenry County · Municipal groundwater wellsCaseyville
Caseyville public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterCentralia
Centralia public water system or regional supplier
Marion and Clinton County · Regional surface water, reservoir supply or groundwaterChampaign
Illinois American Water – Champaign District
Champaign County · Mahomet Aquifer groundwaterChannahon
Channahon public water system or regional supplier
Will and Grundy County · Groundwater or purchased regional supplyCharleston
Charleston public water system
Coles County · Groundwater or reservoir surface waterChatham
Chatham public water system
Sangamon County · Groundwater or reservoir surface waterChester
Chester public water system or regional supplier
Randolph County · Regional surface water, reservoir supply or groundwaterChicago
Chicago Department of Water Management
Cook County · Lake Michigan surface waterChicago Heights
Chicago Heights municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterChicago Ridge
Chicago Ridge municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterChillicothe
Chillicothe public water system or regional supplier
Peoria County · Groundwater or Illinois River regional surface waterCicero
Town of Cicero public water system
Cook County · Purchased Lake Michigan waterClarendon Hills
Clarendon Hills municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterClinton
Clinton public water system
DeWitt County · Groundwater or reservoir surface waterCoal City
Coal City public water system or regional supplier
Grundy and Will County · Groundwater or purchased regional supplyCollinsville
Collinsville public water system or Illinois American regional district
Madison and St. Clair County · Mississippi River surface water, purchased water or groundwaterColumbia
Columbia public water system or Illinois American regional district
Monroe County · Mississippi River surface water, purchased water or groundwaterCountry Club Hills
Country Club Hills municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterCrest Hill
Crest Hill public water system or regional supplier
Will County · Groundwater or purchased regional supplyCrestwood
Crestwood municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterCrete
Crete municipal distribution system or regional wholesale supplier
Will County · Purchased or directly treated Lake Michigan surface waterCrystal Lake
City of Crystal Lake public water system
McHenry County · Municipal groundwater wellsDanville
Aqua Illinois – Vermilion County system
Vermilion County · Surface water associated with Lake VermilionDarien
Darien municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterDeKalb
City of DeKalb public water system
DeKalb County · Municipal groundwater wellsDecatur
City of Decatur public water system
Macon County · Lake Decatur surface waterDeerfield
Deerfield municipal distribution system or regional wholesale supplier
Lake and Cook County · Purchased or directly treated Lake Michigan surface waterDes Plaines
Des Plaines municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterDixon
Dixon public water system
Lee County · Municipal groundwater wellsDolton
Dolton municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterDowners Grove
Downers Grove municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterDu Quoin
Du Quoin public water system or regional supplier
Perry County · Regional surface water, reservoir supply or groundwaterEast Alton
East Alton public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterEast Dundee
East Dundee public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterEast Moline
East Moline public water system
Rock Island County · Mississippi River surface water or municipal groundwaterEast Peoria
Municipal or Illinois American regional system
Tazewell County · Regional surface water or local public supplyEast St. Louis
Illinois American Water – East St. Louis District
St. Clair County · Mississippi River surface waterEdwardsville
Edwardsville public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterEffingham
Effingham public water system
Effingham County · Groundwater or reservoir surface waterElburn
Elburn public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterEldorado
Eldorado public water system or regional supplier
Saline County · Regional surface water, reservoir supply or groundwaterElgin
City of Elgin Water Department
Kane and Cook County · Fox River surface water with local groundwater supportElk Grove Village
Elk Grove Village municipal distribution system or regional wholesale supplier
Cook and DuPage County · Purchased or directly treated Lake Michigan surface waterElmhurst
Elmhurst municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterElmwood Park
Elmwood Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterEureka
Eureka public water system or regional supplier
Woodford County · Groundwater or Illinois River regional surface waterEvanston
City of Evanston public water system
Cook County · Lake Michigan surface waterEvergreen Park
Evergreen Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterFairfield
Fairfield public water system or regional supplier
Wayne County · Regional surface water, reservoir supply or groundwaterFairview Heights
Illinois American Water – East St. Louis District or local distribution system
St. Clair County · Purchased Mississippi River surface waterFlora
Flora public water system or regional supplier
Clay County · Regional surface water, reservoir supply or groundwaterFlossmoor
Flossmoor municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterForest Park
Village of Forest Park public water system
Cook County · Purchased Lake Michigan surface waterForsyth
Forsyth public water system
Macon County · Groundwater or reservoir surface waterFox Lake
Fox Lake public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterFox River Grove
Fox River Grove public water system
McHenry and Lake County · Municipal groundwater wellsFrankfort
Frankfort public water system or regional supplier
Will and Cook County · Groundwater or purchased regional supplyFreeport
Freeport public water system
Stephenson County · Municipal groundwater wellsFulton
Fulton public water system
Whiteside County · Mississippi River surface water or municipal groundwaterGalena
Galena public water system
Jo Daviess County · Mississippi River surface water or municipal groundwaterGalesburg
City of Galesburg public water system
Knox County · Municipal groundwater wellsGeneseo
Geneseo public water system
Henry County · Mississippi River surface water or municipal groundwaterGeneva
Geneva public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterGibson City
Gibson City public water system or regional supplier
Ford County · Mahomet Aquifer groundwater or local surface waterGlen Carbon
Glen Carbon public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterGlen Ellyn
Glen Ellyn municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterGlencoe
Glencoe municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterGlendale Heights
Glendale Heights municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterGlenview
Glenview municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterGlenwood
Glenwood municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterGodfrey
Godfrey public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterGolconda
Golconda public water system or regional supplier
Pope County · Regional surface water, reservoir supply or groundwaterGranite City
Granite City public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterGrayslake
Grayslake public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterGurnee
Gurnee public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterHanover Park
Hanover Park public water system or regional supplier
Cook and DuPage County · Fox River, groundwater or purchased regional waterHarrisburg
Harrisburg public water system or regional supplier
Saline County · Regional surface water, reservoir supply or groundwaterHarvard
Harvard public water system
McHenry County · Municipal groundwater wellsHarvey
Harvey municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterHazel Crest
Hazel Crest municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterHerrin
Herrin public water system or regional supplier
Williamson County · Regional surface water, reservoir supply or groundwaterHickory Hills
Hickory Hills municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterHighland
Highland public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterHighland Park
Highland Park municipal distribution system or regional wholesale supplier
Lake County · Purchased or directly treated Lake Michigan surface waterHinsdale
Hinsdale municipal distribution system or regional wholesale supplier
DuPage and Cook County · Purchased or directly treated Lake Michigan surface waterHoffman Estates
Hoffman Estates municipal distribution system or regional wholesale supplier
Cook and Kane County · Purchased or directly treated Lake Michigan surface waterHomewood
Homewood municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterHoopeston
Hoopeston public water system or regional supplier
Vermilion County · Mahomet Aquifer groundwater or local surface waterHuntley
Village of Huntley public water system
McHenry and Kane County · Municipal groundwater wellsJacksonville
Jacksonville public water system
Morgan County · Groundwater or reservoir surface waterJoliet
City of Joliet public water system
Will and Kendall County · Groundwater and evolving regional supply planningJustice
Justice municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterKankakee
Aqua Illinois – Kankakee system
Kankakee County · Kankakee River surface waterKenilworth
Kenilworth municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterKewanee
Kewanee public water system or regional supplier
Henry County · Groundwater or Illinois River regional surface waterLa Grange
La Grange municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterLa Grange Park
La Grange Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterLaSalle
LaSalle public water system
LaSalle County · Municipal groundwater or local surface-water supplyLake Forest
Lake Forest municipal distribution system or regional wholesale supplier
Lake County · Purchased or directly treated Lake Michigan surface waterLake Villa
Lake Villa public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterLake Zurich
Lake Zurich public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterLake in the Hills
Lake in the Hills public water system
McHenry County · Municipal groundwater wellsLansing
Lansing municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterLibertyville
Libertyville public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterLincoln
Lincoln public water system
Logan County · Groundwater or reservoir surface waterLincolnwood
Lincolnwood municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterLindenhurst
Lindenhurst public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterLisle
Lisle municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterLitchfield
Litchfield public water system
Montgomery County · Groundwater or reservoir surface waterLockport
Lockport public water system or regional supplier
Will County · Groundwater or purchased regional supplyLombard
Lombard municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterLoves Park
City of Loves Park public water system
Winnebago and Boone County · Municipal groundwater wellsMachesney Park
Machesney Park public water system
Winnebago County · Municipal groundwater wellsMacomb
Macomb public water system or regional supplier
McDonough County · Groundwater or Illinois River regional surface waterMahomet
Mahomet public water system or regional supplier
Champaign County · Mahomet Aquifer groundwater or local surface waterManhattan
Manhattan public water system or regional supplier
Will County · Groundwater or purchased regional supplyManteno
Manteno public water system or Kankakee regional supplier
Kankakee County · Kankakee River surface water or municipal groundwaterMarengo
Marengo public water system
McHenry County · Municipal groundwater wellsMarion
City of Marion or regional surface-water supplier
Williamson County · Purchased regional surface waterMarkham
Markham municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMarseilles
Marseilles public water system
LaSalle County · Municipal groundwater or local surface-water supplyMaryville
Maryville public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterMascoutah
Mascoutah public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterMatteson
Matteson municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMattoon
Mattoon public water system
Coles County · Groundwater or reservoir surface waterMaywood
Village of Maywood public water system
Cook County · Purchased Lake Michigan surface waterMcHenry
McHenry public water system
McHenry County · Municipal groundwater wellsMelrose Park
Melrose Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMendota
Mendota public water system
LaSalle County · Municipal groundwater or local surface-water supplyMetamora
Metamora public water system or regional supplier
Woodford County · Groundwater or Illinois River regional surface waterMetropolis
City of Metropolis public water system
Massac County · Provider-dependent municipal supplyMidlothian
Midlothian municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMilan
Milan public water system
Rock Island County · Mississippi River surface water or municipal groundwaterMinooka
Minooka public water system or regional supplier
Grundy, Kendall and Will County · Groundwater or purchased regional supplyMokena
Mokena public water system or regional supplier
Will County · Groundwater or purchased regional supplyMoline
City of Moline public water system
Rock Island County · Mississippi River surface waterMomence
Momence public water system or Kankakee regional supplier
Kankakee County · Kankakee River surface water or municipal groundwaterMonmouth
Monmouth public water system or regional supplier
Warren County · Groundwater or Illinois River regional surface waterMontgomery
Montgomery public water system or regional supplier
Kane and Kendall County · Groundwater or purchased regional supplyMonticello
Monticello public water system or regional supplier
Piatt County · Mahomet Aquifer groundwater or local surface waterMorris
Morris public water system or regional supplier
Grundy County · Groundwater or purchased regional supplyMorton
Morton public water system or regional supplier
Tazewell County · Groundwater or Illinois River regional surface waterMorton Grove
Morton Grove municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMount Carmel
Mount Carmel public water system or regional supplier
Wabash County · Regional surface water, reservoir supply or groundwaterMount Prospect
Mount Prospect municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterMount Vernon
City of Mount Vernon or regional supplier
Jefferson County · Regional surface water or purchased supplyMundelein
Mundelein public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterMurphysboro
Murphysboro public water system or regional supplier
Jackson County · Regional surface water, reservoir supply or groundwaterNaperville
City of Naperville Water Utility
DuPage and Will County · Purchased Lake Michigan waterNashville
Nashville public water system or regional supplier
Washington County · Regional surface water, reservoir supply or groundwaterNew Lenox
New Lenox public water system or regional supplier
Will County · Groundwater or purchased regional supplyNiles
Niles municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterNormal
Town of Normal public water system
McLean County · Municipal groundwater wellsNorth Aurora
North Aurora public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterNorth Chicago
North Chicago public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterNorthbrook
Northbrook municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterO'Fallon
O'Fallon public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterOak Forest
Oak Forest municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterOak Lawn
Oak Lawn municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterOak Park
Oak Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterOglesby
Oglesby public water system
LaSalle County · Municipal groundwater or local surface-water supplyOlney
Olney public water system or regional supplier
Richland County · Regional surface water, reservoir supply or groundwaterOregon
Oregon public water system
Ogle County · Municipal groundwater wellsOrland Park
Orland Park municipal distribution system or regional wholesale supplier
Cook and Will County · Purchased or directly treated Lake Michigan surface waterOswego
Village of Oswego public water system
Kendall County · Municipal groundwater wellsOttawa
Ottawa public water system
LaSalle County · Municipal groundwater or local surface-water supplyPalatine
Palatine municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterPalos Heights
Palos Heights municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterPalos Hills
Palos Hills municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterParis
Paris public water system or regional supplier
Edgar County · Mahomet Aquifer groundwater or local surface waterPark Forest
Park Forest municipal distribution system or regional wholesale supplier
Cook and Will County · Purchased or directly treated Lake Michigan surface waterPark Ridge
Park Ridge municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterPekin
Pekin public water system or regional supplier
Tazewell County · Groundwater or Illinois River regional surface waterPeoria
Illinois American Water – Peoria District
Peoria County · Illinois River surface waterPeru
Peru public water system
LaSalle County · Municipal groundwater or local surface-water supplyPinckneyville
Pinckneyville public water system or regional supplier
Perry County · Regional surface water, reservoir supply or groundwaterPlainfield
Plainfield public water system or regional supplier
Will and Kendall County · Groundwater or purchased regional supplyPlano
City of Plano public water system
Kendall County · Municipal groundwater wellsPontiac
Pontiac public water system
Livingston County · Groundwater or reservoir surface waterPrinceton
Princeton public water system
Bureau County · Municipal groundwater or local surface-water supplyProspect Heights
Prospect Heights municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterQuincy
City of Quincy public water system
Adams County · Mississippi River surface waterRantoul
Rantoul public water system or regional supplier
Champaign County · Mahomet Aquifer groundwater or local surface waterRichton Park
Richton Park municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterRiver Forest
River Forest municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterRochelle
Rochelle public water system
Ogle County · Municipal groundwater wellsRock Island
City of Rock Island public water system
Rock Island County · Mississippi River surface waterRockford
City of Rockford Water Division
Winnebago County · Municipal groundwater wellsRockton
Rockton public water system
Winnebago County · Municipal groundwater wellsRolling Meadows
Rolling Meadows municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterRomeoville
Romeoville public water system or regional supplier
Will County · Groundwater or purchased regional supplyRoscoe
Roscoe public water system
Winnebago County · Municipal groundwater wellsRoselle
Roselle municipal distribution system or regional wholesale supplier
DuPage and Cook County · Purchased or directly treated Lake Michigan surface waterRosemont
Rosemont municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterRound Lake
Round Lake public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterRound Lake Beach
Round Lake Beach public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterSalem
Salem public water system or regional supplier
Marion County · Regional surface water, reservoir supply or groundwaterSandwich
Sandwich public water system
DeKalb and Kendall County · Municipal groundwater or local surface-water supplySavoy
Illinois American Water – Champaign District or local system
Champaign County · Mahomet Aquifer groundwaterSchaumburg
Schaumburg municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterShelbyville
Shelbyville public water system
Shelby County · Groundwater or reservoir surface waterShiloh
Shiloh public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterShorewood
Shorewood public water system or regional supplier
Will County · Groundwater or purchased regional supplySilvis
Silvis public water system
Rock Island County · Mississippi River surface water or municipal groundwaterSkokie
Skokie municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterSouth Beloit
South Beloit public water system
Winnebago County · Municipal groundwater wellsSouth Elgin
South Elgin public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterSouth Holland
South Holland municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterSparta
Sparta public water system or regional supplier
Randolph County · Regional surface water, reservoir supply or groundwaterSpring Valley
Spring Valley public water system
Bureau County · Municipal groundwater or local surface-water supplySpringfield
City Water, Light and Power
Sangamon County · Lake Springfield surface waterSt. Charles
St. Charles public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterSterling
Sterling public water system
Whiteside County · Municipal groundwater wellsStreamwood
Streamwood public water system or regional supplier
Cook County · Fox River, groundwater or purchased regional waterStreator
Streator public water system
LaSalle and Livingston County · Municipal groundwater or local surface-water supplySugar Grove
Sugar Grove public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterSwansea
Swansea public water system or Illinois American regional district
St. Clair County · Mississippi River surface water, purchased water or groundwaterSycamore
Sycamore public water system
DeKalb County · Municipal groundwater wellsTaylorville
Taylorville public water system
Christian County · Groundwater or reservoir surface waterTinley Park
Tinley Park municipal distribution system or regional wholesale supplier
Cook and Will County · Purchased or directly treated Lake Michigan surface waterTroy
Troy public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterTuscola
Tuscola public water system or regional supplier
Douglas County · Mahomet Aquifer groundwater or local surface waterUrbana
Illinois American Water – Champaign District
Champaign County · Mahomet Aquifer groundwaterVandalia
Vandalia public water system
Fayette County · Groundwater or reservoir surface waterVernon Hills
Vernon Hills public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterVienna
Vienna public water system or regional supplier
Johnson County · Regional surface water, reservoir supply or groundwaterVilla Park
Villa Park municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWarrenville
Warrenville municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWashington
Washington public water system or regional supplier
Tazewell County · Groundwater or Illinois River regional surface waterWaterloo
Waterloo public water system or Illinois American regional district
Monroe County · Mississippi River surface water, purchased water or groundwaterWatseka
Watseka public water system or regional supplier
Iroquois County · Mahomet Aquifer groundwater or local surface waterWauconda
Wauconda public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterWaukegan
City of Waukegan public water system
Lake County · Lake Michigan surface waterWest Chicago
West Chicago municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWest Dundee
West Dundee public water system or regional supplier
Kane County · Fox River, groundwater or purchased regional waterWest Frankfort
West Frankfort public water system or regional supplier
Franklin County · Regional surface water, reservoir supply or groundwaterWestchester
Westchester municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterWestern Springs
Western Springs municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterWestmont
Westmont municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWheaton
Wheaton municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWheeling
Wheeling municipal distribution system or regional wholesale supplier
Cook and Lake County · Purchased or directly treated Lake Michigan surface waterWilmette
Wilmette municipal distribution system or regional wholesale supplier
Cook County · Purchased or directly treated Lake Michigan surface waterWilmington
Wilmington public water system or Kankakee regional supplier
Will County · Kankakee River surface water or municipal groundwaterWinnetka
Village of Winnetka public water system
Cook County · Lake Michigan surface waterWinthrop Harbor
Winthrop Harbor public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterWood Dale
Wood Dale municipal distribution system or regional wholesale supplier
DuPage County · Purchased or directly treated Lake Michigan surface waterWood River
Wood River public water system or Illinois American regional district
Madison County · Mississippi River surface water, purchased water or groundwaterWoodridge
Woodridge municipal distribution system or regional wholesale supplier
DuPage and Will County · Purchased or directly treated Lake Michigan surface waterWoodstock
Woodstock public water system
McHenry County · Municipal groundwater wellsYorkville
Yorkville public water system or regional supplier
Kendall County · Groundwater or purchased regional supplyZion
Zion public water system or regional supplier
Lake County · Lake Michigan surface water, purchased water or groundwaterNo city pages match that search and regional filter.