Illinois utilities 101 to 200.

Each serves 12,252 to 23,930 people, as it reports to EPA. Your ZIP code finds yours faster.

Find a Illinois utility, city or county

101 to 200 of 491, by people served

Illinois utilities, 101 to 200 of 491, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Freeport	Freeport	23,930	PFOS	0
South Elgin	South Elgin	23,648	PFOA, PFBS	1
Loves Park	Loves Park	23,335	None found	0
Rolling Meadows	Rolling Meadows	23,329	None found	0
Lockport	Lockport	23,100	PFHxS, PFBS	0
Great Lakes Naval Training Station	North Chicago	23,000	None found	0
Yorkville	Yorkville	23,000	None found	0
Roselle	Roselle	22,897	None found	0
McHenry	McHenry	22,335	PFBS	0
East Peoria	East Peoria	22,284	PFOS, PFHxS, PFBS	0
Villa Park	Villa Park	22,263	None found	0
Carbondale	Carbondale	22,107	None found	4
Bloomingdale	Weston	22,018	None found	0
South Holland	South Holland	22,000	None found	2
Darien	Darien	21,751	None found	0
Park Forest	Park Forest	21,687	None found	1
Blue Island	Blue Island	21,494	None found	0
East Moline	East Moline	21,374	PFBS	0
Grayslake	Grays Lake	21,248	None found	0
Geneva	Geneva	21,247	None found	0
Crest Hill	Crest Hill	21,169	PFOA, PFHxS, PFBS	1
Dolton	Dolton	20,510	None found	0
Libertyville	Libertyville	20,500	None found	0
Evergreen Park	Evergreen Park	19,943	None found	0
Jacksonville	Jacksonville	19,903	None found	0
Mokena	Mokena	19,887	None found	0
Lake Zurich	Lake Zurich	19,759	None found	0
Lake Forest	Lake Forest	19,642	None found	0
Mattoon	Mattoon	19,500	None found	0
Homewood	Homewood	19,463	PFOA	0
Deerfield	Deerfield	19,196	None found	0
Bellwood	Bellwood	19,156	None found	1
Alsip	Alsip	19,063	None found	0
IL American - Streator	Streator	19,000	PFBS	0
Brookfield	Brookfield	18,776	None found	0
Shorewood	Shorewood	18,645	None found	0
Bensenville	Bensenville	18,537	None found	0
Palos Hills	Palos Hills	18,530	None found	0
Sycamore	Sycamore	18,500	None found	0
Franklin Park	Franklin Park	18,467	None found	0
Justice - Willow Springs Water Commission	Justice	18,450	None found	0
Round Lake	Round Lake	18,430	None found	0
Matteson	Matteson	18,293	None found	0
North Aurora	North Aurora	18,261	None found	0
Ottawa	Ottawa	18,097	None found	1
Hinsdale	Hinsdale	17,900	None found	0
Cary	Cary	17,826	None found	0
Lemont	Lemont	17,500	None found	1
Charleston	Charleston	17,286	None found	1
Morton	Morton	17,111	None found	0
Troy	Troy	16,962	PFBS	0
Marion	Marion	16,855	None found	0
North Chicago	North Chicago	16,813	None found	2
Canton	Canton	16,748	None found	0
Country Club Hills	Country Club Hills	16,500	None found	0
Bridgeview	Bridgeview	16,467	None found	0
Chatham	Chatham	16,423	None found	0
Westchester	Westchester	16,241	None found	0
La Grange	La Grange	16,200	None found	0
Mount Vernon	Mount Vernon	15,793	None found	0
Palos Heights	Palos Heights	15,500	None found	0
Wauconda	Wauconda	15,349	None found	0
Norridge	Norridge	15,251	None found	0
Bethalto	Bethalto	15,210	PFHxS, PFBS	0
IL American - Lincoln	Lincoln	15,200	PFOA	1
Dixon	Dixon	15,096	None found	0
Macomb	Macomb	15,051	None found	4
Wildwood Subdivision - Lake Co Pw		14,832	None found	0
Midlothian	Midlothian	14,819	None found	0
Washington	Washington	14,793	None found	0
IL American - Sterling	Coleta	14,782	None found	0
Morris	Morris	14,775	None found	0
Hickory Hills	Hickory Hills	14,505	None found	0
Lindenhurst	Lindenhurst	14,500	None found	0
Forest Park	Forest Park	14,340	None found	0
Antioch	Antioch	14,175	None found	0
Chicago Ridge	Chicago Ridge	14,130	None found	0
Wood Dale	Wood Dale	14,012	None found	0
Caseyville	Caseyville	13,798	None found	0
Hazel Crest	Hazel Crest	13,792	None found	0
Lincolnwood	Lincolnwood	13,463	None found	0
Channahon	Channahon	13,380	PFOA, PFOS, PFBS	0
Western Springs	Western Springs	13,274	None found	1
La Grange Park	La Grange Park	13,011	None found	0
Rantoul	Rantoul	13,000	None found	0
U of I - Champaign	Urbana	13,000	None found	0
Northlake	North Lake	12,840	None found	0
Taylorville	Taylorville	12,806	None found	0
Minooka	Minooka	12,800	PFBS	1
Jersey Rwc	Jerseyville	12,750	None found	0
Herrin	Herrin	12,747	None found	0
Glen Carbon	Glen Carbon	12,618	None found	0
Plano	Plano	12,600	None found	0
Cahokia Heights	Cahokia	12,528	None found	0
Kewanee	Kewanee	12,509	None found	0
Richton Park	Richton Park	12,504	None found	2
Markham	Markham	12,500	None found	0
Winnetka	Winnetka	12,475	None found	0
Warrenville	Warrenville	12,350	None found	0
Effingham	Effingham	12,252	None found	0

Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q2 and UCMR 5.

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Illinois utilities 101 to 200.

101 to 200 of 491, by people served

Where to go next

Read your utility’s own report

Every contaminant

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