Iowa utilities 301 to 400.

Each serves 765 to 1,124 people, as it reports to EPA. Your ZIP code finds yours faster.

Find an Iowa utility, city or county

301 to 400 of 1,075, by people served

Iowa utilities, 301 to 400 of 1,075, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Mapleton Municipal Water Plant	Mapleton	1,124	Not sampled	0
Arnolds Park Water Department	Arnolds Park	1,113	Not sampled	0
Fairbank Water Supply	Fairbank	1,111	Not sampled	1
Conrad Water Supply	Conrad	1,098	Not sampled	0
George Water Supply	George	1,082	Not sampled	0
Marcus Water Supply	Marcus	1,079	Not sampled	0
Sidney Water Supply	Sidney	1,077	Not sampled	0
Van Meter Municipal Water Work	Van Meter	1,074	Not sampled	0
Rockwell Water Supply	Rockwell	1,071	Not sampled	0
Elk Run Heights Water Supply	Elk Run Heights	1,069	Not sampled	0
North English Water Department	North English	1,065	Not sampled	0
Riverside Water Supply	Riverside	1,060	Not sampled	0
Treynor Water Department	Treynor	1,049	Not sampled	0
Malvern Water Supply	Malvern	1,046	Not sampled	1
Sloan Water Supply	Sloan	1,042	Not sampled	0
Clarence Water Supply	Clarence	1,039	Not sampled	0
Dunlap Water Supply	Dunlap	1,035	Not sampled	0
Winfield Muni Water Dept	Winfield	1,035	Not sampled	0
Janesville Water Supply	Janesville	1,034	Not sampled	0
Autumn Ridge Estates MHP	Ankeny	1,032	Not sampled	0
Mechanicsville Water Dept	Mechanicsville	1,020	Not sampled	0
Tabor Water Supply	Tabor	1,014	Not sampled	0
Griswold Water Supply	Griswold	1,008	Not sampled	0
Eagle Ridge	Marion	1,005	Not sampled	0
Baxter Water Supply	Baxter	1,002	Not sampled	0
Paullina Municipal Water Supply	Paullina	996	Not sampled	0
Greene Muni Water Supply	Greene	994	Not sampled	0
Odebolt Water Supply	Odebolt	994	Not sampled	0
Yes Five Seasons Cedar LLC	Cedar Rapids	994	Not sampled	0
Lawton Water Supply	Lawton	988	Not sampled	0
Fredericksburg Water Supply	Fredericksburg	987	Not sampled	0
Lansing Water Supply	Lansing	983	Not sampled	1
Anita Municipal Utilities	Anita	972	None found	0
Aurelia Water Supply	Aurelia	968	Not sampled	0
Allison Water Supply	Allison	966	Not sampled	0
Wayland Water Supply	Wayland	966	Not sampled	0
Keosauqua Water Works	Keosauqua	961	Not sampled	0
Shellsburg Water Supply	Shellsburg	961	Not sampled	0
De Soto Water Supply	De Soto	960	Not sampled	0
Gowrie Muni Utilities Water Dept	Gowrie	954	Not sampled	0
Preston Muni Water Supply	Preston	949	Not sampled	0
Edgewood Water Supply	Edgewood	939	Not sampled	0
Hinton Water Supply	Hinton	935	Not sampled	0
Alpine Park	Dubuque	932	Not sampled	0
Sioux Rapids Water Department	Sioux Rapids	932	Not sampled	0
Inwood Water Supply	Inwood	928	Not sampled	0
Eldon Water Supply	Eldon	927	Not sampled	0
Larchwood Water Supply	Larchwood	926	Not sampled	0
Danville Water Supply	Danville	923	Not sampled	1
Princeton Water Supply	Princeton	923	Not sampled	1
Newell Water Treatment Plant	Newell	921	Not sampled	0
West Point Muni Water System	West Point	921	Not sampled	0
Armstrong Water Supply	Armstrong	918	Not sampled	0
Modern Manor, Inc	Iowa City	915	Not sampled	0
Le Grand Water Works	Le Grand	910	Not sampled	0
Neola Light & Water	Neola	906	Not sampled	0
Primghar Municipal Water Supply	Primghar	902	Not sampled	0
Sully Muni Water Works	Sully	900	Not sampled	0
Graettinger Municipal Water Supply	Graettinger	897	Not sampled	0
Keota Water Dept	Keota	897	Not sampled	0
Hamburg Water Supply	Hamburg	890	Not sampled	0
Donnellson Muni Water Works	Donnellson	885	Not sampled	10
Elkhart Water Supply	Elkhart	882	Not sampled	0
Newhall Water Supply	Newhall	881	Not sampled	1
Victor Municipal Water Dept	Victor	875	Not sampled	0
Hills Water Supply	Hills	863	Not sampled	0
Hubbard Water Supply	Hubbard	860	Not sampled	0
Maxwell Water Department	Maxwell	859	Not sampled	0
Buffalo Center Muni Water Dept	Buffalo Center	857	Not sampled	0
Colo Water Supply	Colo	853	Not sampled	0
Marion Village	Marion	850	Not sampled	0
Readlyn Water Supply	Readlyn	845	Not sampled	0
Dunkerton Muni Water Supply	Dunkerton	842	Not sampled	0
Winthrop Water Supply	Winthrop	840	Not sampled	0
Long Grove Muni Water Supply	Long Grove	838	Not sampled	0
Cambridge Water Supply	Cambridge	832	PFBS	0
Lakeside Estates LLC	Carter Lake	823	Not sampled	0
Midwest Country Estates	Waukee	820	Not sampled	0
Riceville Water Supply	Riceville	816	Not sampled	0
Adair Municipal Water Supply	Adair	809	Not sampled	0
Lowden Water Supply	Lowden	807	Not sampled	0
Schleswig Munic Water Supply	Schleswig	803	Not sampled	0
Ossian Water Supply	Ossian	802	Not sampled	0
Gladbrook Water Supply	Gladbrook	799	Not sampled	0
Gilbertville Water Works	Gilbertville	796	Not sampled	0
Milo Public Water Supply	Milo	788	Not sampled	0
Wall Lake Water Supply	Wall Lake	780	Not sampled	0
Ruthven Water Supply	Ruthven	779	Not sampled	0
Van Horne Water Works	Van Horne	779	Not sampled	0
Crescent Water Supply	Crescent	778	Not sampled	0
Okoboji Water Supply	Okoboji	776	None found	0
Freeport Water District	Decorah	775	Not sampled	0
Wheatland City Water Supply	Wheatland	775	Not sampled	2
Dayton Municipal Water Supply	Dayton	772	Not sampled	0
West Bend Water Department	West Bend	772	Not sampled	0
Dakota City Water Supply	Dakota City	769	Not sampled	0
Walnut Municipal Utilities	Walnut	768	Not sampled	0
Carson Water Supply	Carson	766	Not sampled	0
Correctionville Water Supply	Correctionville	766	Not sampled	0
Melbourne Water Supply	Melbourne	765	Not sampled	0

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 Iowa Department of Natural Resources, Water Supply Programs.

301 to 400 of 1,075, by people served

Where to go next