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Cowley County, Kansas — public water systems

At a glance

16 active public water systems are filed under Cowley County, Kansas in EPA's SDWIS records, together reporting 35,090 people served. The largest is City of Arkansas City, which reports serving 11,929 people. 15 are community water systems serving people where they live; the other 1 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

16

Population served

35.1K

Community systems

15

Groundwater share

37.5%

How does Cowley County compare with other Kansas counties?

Cowley County has the 13th-most active public water systems among the 136 counties listed for active Kansas systems in EPA records; among the 101 with 3 or more systems, the median has 9. Its systems report 35,090 people served in total, the 14th-largest county figure in the state and 1.2% of the statewide total. The average system here reports serving 2,193 people, about 22% below the Kansas average of 2,800. 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 Cowley County's drinking water come from?

By primary water source, Cowley County's active systems draw on purchased surface water (9, 56%), groundwater (6, 38%) and surface water (1, 6.3%). Overall, 38% rely mainly on groundwater (including purchased groundwater) and 63% on surface water, compared with 66% and 34% across Kansas. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, City of Arkansas City, draws primarily on groundwater.

What kinds of water systems operate in Cowley County?

Cowley County's active systems break down as 15 community systems (94%) and 1 non-transient non-community systems (6.3%). 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. EPA lists their owner types as local government (94%) and private (6.3%).

Water systems in Cowley County

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Active public water systems in Cowley County, Kansas
#Water systemCountyPopulation servedTypeSource
1Arkansas City, City ofCowley11,929CommunityGroundwater
2Winfield, City ofCowley11,726CommunitySurface water
3Cowley Co Rwd 3Cowley2,500CommunityGroundwater
4Cowley Co Rwd 5Cowley2,000CommunityPurchased surface water
5Strother Field Airport Ind ParkCowley1,534Non-transient non-communityGroundwater
6Cowley Co Rwd 1Cowley1,500CommunityGroundwater
7Cowley Co Rwd 6Cowley792CommunityGroundwater
8Udall, City ofCowley658CommunityGroundwater
9Cowley Co Rwd 2Cowley600CommunityPurchased surface water
10Burden, City ofCowley514CommunityPurchased surface water
11Cowley Co Rwd 4Cowley500CommunityPurchased surface water
12Cowley Co Rwd 7Cowley300CommunityPurchased surface water
13Dexter, City ofCowley226CommunityPurchased surface water
14Atlanta, City ofCowley169CommunityPurchased surface water
15Cambridge, City ofCowley92CommunityPurchased surface water
16Cowley Co Rwd 8Cowley50CommunityPurchased surface water

Cowley County water systems: frequently asked questions

How many public water systems are in Cowley County, Kansas?

EPA's SDWIS records file 16 active public water systems under Cowley County, Kansas: 15 community systems (94%) and 1 non-transient non-community systems (6.3%).

Who supplies drinking water in Cowley County, KS?

The largest community water systems filed under Cowley County are City of Arkansas City (11,929 people served), City of Winfield (11,726 people served) and Cowley Co Rwd 3 (2,500 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 Cowley County's drinking water come from groundwater or surface water?

Of the 16 active public water systems in Cowley County, 38% draw mainly on groundwater and 63% on surface water, counting purchased supplies. The largest system, City of Arkansas City, uses groundwater.

Where can I find a water quality report for Cowley 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. 15 community systems are filed under Cowley 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 Cowley 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 Kansas 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 Cowley County, Kansas”, https://aquacensus.com/water-systems/kansas/cowley (data as of October 1, 2026).