Wisconsin utilities 201 to 300.

Each serves 1,530 to 3,110 people, as it reports to EPA. Your ZIP code finds yours faster.

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201 to 300 of 1,026, by people served

Wisconsin utilities, 201 to 300 of 1,026, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Oostburg Waterworks	Oostburg	3,110	Not sampled	0
Lake Como Sanitary Dist 1	Lake Geneva	3,038	Not sampled	0
Hortonville Water Utility	Hortonville	3,028	Not sampled	1
New Holstein Waterworks	New Holstein	3,012	Not sampled	1
Park Falls Waterworks	Park Falls	2,993	Not sampled	0
Amery Waterworks	Amery	2,962	Not sampled	1
Lac Du Flambeau	Lac Du Flambeau	2,962	PFBS	0
Lake Delton Waterworks	Lake Delton	2,914	Not sampled	0
Oconto Falls Waterworks	Oconto Falls	2,892	Not sampled	1
Kewaunee Waterworks	Kewaunee	2,848	Not sampled	1
South - Central Water System	Bowler	2,805	None found	0
Mendota Mental Health Inst	Madison	2,787	Not sampled	0
Rome Water Utility	Nekoosa	2,775	Not sampled	0
Genoa City Waterworks	Genoa City	2,766	Not sampled	1
Luxemburg Waterworks	Luxemburg	2,737	Not sampled	0
Belleville Waterworks	Belleville	2,712	Not sampled	0
Lomira Waterworks	Lomira	2,701	Not sampled	2
Brockway Sanitary Dist 1	Black River Falls	2,692	Not sampled	0
Denmark Waterworks	Denmark	2,684	None found	1
Osceola Waterworks	Osceola	2,680	Not sampled	1
Mondovi Waterworks	Mondovi	2,667	Not sampled	2
Spooner Waterworks	Spooner	2,653	Not sampled	0
Juneau Waterworks	Juneau	2,627	Not sampled	7
Williams Bay Waterworks	Williams Bay	2,601	Not sampled	1
Hayward Water Utility	Hayward	2,552	Not sampled	0
New Lisbon Waterworks	New Lisbon	2,526	Not sampled	1
Poynette Waterworks	Poynette	2,520	Not sampled	1
Deerfield Waterworks	Deerfield	2,510	Not sampled	0
Fennimore Waterworks	Fennimore	2,507	Not sampled	0
Abbotsford Waterworks	Abbotsford	2,502	Not sampled	2
Winneconne Waterworks	Winneconne	2,502	Not sampled	13
Belgium Waterworks	Belgium	2,493	Not sampled	1
Mineral Point Waterworks	Mineral Point	2,487	Not sampled	3
Westby Waterworks	Westby	2,400	Not sampled	1
Nekoosa Waterworks	Nekoosa	2,394	Not sampled	0
Neillsville Waterworks	Neillsville	2,384	Not sampled	0
Lakeland Sanitary Dist 1	Minocqua	2,381	Not sampled	1
Dousman Water Utility	Dousman	2,350	Not sampled	1
New Glarus Waterworks	New Glarus	2,348	Not sampled	1
Cumberland Waterworks	Cumberland	2,311	Not sampled	0
Walworth Waterworks	Walworth	2,304	Not sampled	1
Washburn Waterworks	Washburn	2,280	Not sampled	2
Wautoma Water Dept	Wautoma	2,280	Not sampled	0
Fredonia Waterworks	Fredonia	2,279	Not sampled	0
Kohler Waterworks	Kohler	2,271	Not sampled	0
Geneva National Community Services	Lake Geneva	2,250	Not sampled	0
Darlington Waterworks	Darlington	2,235	Not sampled	1
Cedar Grove Waterworks	Cedar Grove	2,213	Not sampled	0
Schofield Waterworks	Schofield	2,205	PFOA, PFHxS, PFBS	0
Butler Waterworks	Butler	2,181	Not sampled	0
Pardeeville Waterworks	Pardeeville	2,151	Not sampled	0
Cuba City Waterworks	Cuba City	2,141	Not sampled	1
Clinton Waterworks	Clinton	2,119	None found	0
Prairie Village Water Trust	North Prairie	2,100	Not sampled	1
St Croix Falls Waterworks	St Croix Falls	2,079	Not sampled	0
Redgranite Waterworks	Redgranite	2,019	Not sampled	0
Crandon Waterworks	Crandon	1,958	Not sampled	1
Eagle Waterworks	Eagle	1,950	Not sampled	0
Harmony Grove San Dist	Lodi	1,950	Not sampled	0
Chetek Waterworks	Chetek	1,931	Not sampled	0
Somers Water Utility	Somers	1,930	None found	0
Trempealeau Waterworks	Trempealeau	1,888	Not sampled	0
Hammond Waterworks	Hammond	1,884	Not sampled	0
Scott Water Utility Dist	New Franken	1,875	Not sampled	0
Roberts Waterworks	Roberts	1,872	Not sampled	0
Durand Waterworks	Durand	1,868	Not sampled	0
Port Edwards Water Utility	Port Edwards	1,866	Not sampled	0
Fox Lake Correctional Institution	Fox Lake	1,850	Not sampled	1
Spencer Waterworks	Spencer	1,848	Not sampled	1
Adams Waterworks	Adams	1,847	Not sampled	0
Fontana Water Utility	Fontana	1,839	Not sampled	1
Colby Waterworks	Colby	1,829	Not sampled	0
Campbellsport Waterworks	Campbellsport	1,825	Not sampled	0
Weyauwega Waterworks	Weyauwega	1,820	Not sampled	0
Whitehall Waterworks	Whitehall	1,820	Not sampled	0
Wind Point Water Dept	Racine	1,804	Not sampled	0
Randolph Water Dept	Randolph	1,800	Not sampled	5
Menomonee Falls Ww - Groundwater	Menomonee Falls	1,796	Not sampled	0
Fall River Waterworks	Fall River	1,793	Not sampled	1
Cameron Waterworks	Cameron	1,787	Not sampled	0
Palmyra Waterworks	Palmyra	1,756	PFOS, PFHxS	0
Mazomanie Waterworks	Mazomanie	1,744	Not sampled	0
Whiting Waterworks	Stevens Point	1,743	Not sampled	0
Osseo Waterworks	Osseo	1,701	Not sampled	0
Marathon City Waterworks	Marathon City	1,695	Not sampled	1
Galesville Waterworks	Galesville	1,679	Not sampled	1
Shorewood Hills Waterworks	Madison	1,670	Not sampled	0
Stratford Waterworks	Stratford	1,643	Not sampled	1
Cambridge Water & Sewer Utility	Cambridge	1,638	Not sampled	1
Thorp Waterworks	Thorp	1,636	Not sampled	2
Spring Green Waterworks	Spring Green	1,626	Not sampled	0
Fox Lake Waterworks	Fox Lake	1,610	Not sampled	0
Random Lake Waterworks	Random Lake	1,594	Not sampled	0
Darien Waterworks	Darien	1,573	Not sampled	0
Elkhart Lake Waterworks	Elkhart Lake	1,567	Not sampled	0
Niagara Waterworks	Niagara	1,561	Not sampled	0
Federal Correctional Institution	Oxford	1,550	Not sampled	1
Sharon Waterworks	Sharon	1,549	Not sampled	1
Kettle Moraine Correctional Institution	Plymouth	1,544	Not sampled	0
Eagle River Waterworks	Eagle River	1,530	Not sampled	1

Every utility EPA sampled for PFAS under UCMR 5, any other community system serving 3,300 people or more, and any smaller one with results from 2020 on, from the state. Other systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q3, UCMR 5 and EPA’s 2012 to 2019 compliance results, and Wisconsin Department of Natural Resources, Drinking Water Program.

201 to 300 of 1,026, by people served

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