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Clinton County, Iowa — public water systems

At a glance

29 active public water systems are filed under Clinton County, Iowa in EPA's SDWIS records, together reporting 40,325 people served. The largest is Iowa-American Wtr Co-Clinton District, which reports serving 24,769 people. 16 are community water systems serving people where they live; the other 13 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

29

Population served

40.3K

Community systems

16

Groundwater share

100%

How does Clinton County compare with other Iowa counties?

Clinton County has the 14th-most active public water systems among the 114 counties listed for active Iowa systems in EPA records; among the 96 with 3 or more systems, the median has 14. Its systems report 40,325 people served in total, the 14th-largest county figure in the state and 1.3% of the statewide total. The average system here reports serving 1,391 people, about 19% below the Iowa average of 1,718. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Clinton County's drinking water come from?

By primary water source, Clinton County's active systems draw on groundwater (29, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.8% across Iowa. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Iowa-American Wtr Co-Clinton District, draws primarily on groundwater.

What kinds of water systems operate in Clinton County?

Clinton County's active systems break down as 16 community systems (55%), 2 non-transient non-community systems (6.9%) and 11 transient non-community systems (38%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (52%), local government (45%) and federal government (3.4%).

Water systems in Clinton County

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Active public water systems in Clinton County, Iowa
#Water systemCountyPopulation servedTypeSource
1Iowa-American Wtr Co-Clinton DistrictClinton24,769CommunityGroundwater
2De Witt Water SupplyClinton5,514CommunityGroundwater
3Camanche Water SupplyClinton4,570CommunityGroundwater
4Wheatland City Water SupplyClinton775CommunityGroundwater
5Equistar Chemicals LpClinton715Non-transient non-communityGroundwater
6Grand Mound Water SupplyClinton615CommunityGroundwater
7Delmar Water SupplyClinton542CommunityGroundwater
8Lost Nation Water SupplyClinton434CommunityGroundwater
9Charlotte Water WorksClinton401CommunityGroundwater
10Calamus Water SupplyClinton356CommunityGroundwater
11Iowa-American Water (Low Moor)Clinton250CommunityGroundwater
12Goose Lake Muni Water SystemClinton239CommunityGroundwater
13Winding Brook Mobile Home ParkClinton150CommunityGroundwater
14Heineejos Inc.Clinton127Transient non-communityGroundwater
15Welton Water SupplyClinton121CommunityGroundwater
16Andover Water SupplyClinton109CommunityGroundwater
17Almont Tap LLCClinton104Transient non-communityGroundwater
18Valley OaksClinton100Transient non-communityGroundwater
19Bulgers Hollow Recreation AreaClinton77Transient non-communityGroundwater
20Wapsi Oaks Country ClubClinton60Transient non-communityGroundwater
21Rock Creek Marina & CampgroundClinton52Transient non-communityGroundwater
22Brookhill EstatesClinton41CommunityGroundwater
23Walnut Grove Pk-Clin ConservatClinton40Transient non-communityGroundwater
24Rail One USAClinton30Non-transient non-communityGroundwater
25Grace Lutheran Camp Inc.Clinton30Transient non-communityGroundwater
26Bs General Store LLCClinton27Transient non-communityGroundwater
2761 Drive-in TheatreClinton27Transient non-communityGroundwater
28P & K Midwest (Welton)Clinton25Transient non-communityGroundwater
29Cardinal Valley Estates 3rd AdditionClinton25CommunityGroundwater

Clinton County water systems: frequently asked questions

How many public water systems are in Clinton County, Iowa?

EPA's SDWIS records file 29 active public water systems under Clinton County, Iowa: 16 community systems (55%), 2 non-transient non-community systems (6.9%) and 11 transient non-community systems (38%).

Who supplies drinking water in Clinton County, IA?

The largest community water systems filed under Clinton County are Iowa-American Wtr Co-Clinton District (24,769 people served), De Witt Water Supply (5,514 people served) and Camanche Water Supply (4,570 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Clinton County's drinking water come from groundwater or surface water?

Of the 29 active public water systems in Clinton County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Iowa-American Wtr Co-Clinton District, uses groundwater.

Where can I find a water quality report for Clinton County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 16 community systems are filed under Clinton County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Clinton County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Iowa water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Clinton County, Iowa”, https://aquacensus.com/water-systems/iowa/clinton (data as of October 1, 2026).