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Kay County, Oklahoma — public water systems

At a glance

14 active public water systems are filed under Kay County, Oklahoma in EPA's SDWIS records, together reporting 45,560 people served. The largest is Ponca City Mun Water, which reports serving 27,155 people. 12 are community water systems serving people where they live; the other 2 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

14

Population served

45.6K

Community systems

12

Groundwater share

50%

How does Kay County compare with other Oklahoma counties?

Kay County has the 27th-most active public water systems among the 92 counties listed for active Oklahoma systems in EPA records; among the 78 with 3 or more systems, the median has 11. Its systems report 45,560 people served in total, the 17th-largest county figure in the state and 1.3% of the statewide total. The average system here reports serving 3,254 people, about 12% above the Oklahoma average of 2,907. 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 Kay County's drinking water come from?

By primary water source, Kay County's active systems draw on groundwater (6, 43%), purchased surface water (5, 36%), surface water (2, 14%) and purchased groundwater (1, 7.1%). Overall, 50% rely mainly on groundwater (including purchased groundwater) and 50% on surface water, compared with 62% and 38% across Oklahoma. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Ponca City Mun Water, draws primarily on surface water.

What kinds of water systems operate in Kay County?

Kay County's active systems break down as 12 community systems (86%) and 2 transient non-community systems (14%). 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 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 local government (79%) and private (21%).

Water systems in Kay County

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Active public water systems in Kay County, Oklahoma
#Water systemCountyPopulation servedTypeSource
1Ponca City Mun WaterKay27,155CommunitySurface water
2Blackwell Municipal AuthorityKay7,668CommunitySurface water
3TonkawaKay3,299CommunityGroundwater
4NewkirkKay2,243CommunityGroundwater
5Kay Co Rwd #1Kay1,765CommunityPurchased surface water
6Kay Co Rwd #3Kay1,000CommunityPurchased surface water
7Kay County Rural Water District 7Kay920CommunityPurchased surface water
8Kay Co Rwd #5 (Dale Water Corp)Kay765CommunityPurchased groundwater
9Kaw City Water AuthorityKay372CommunityGroundwater
10BramanKay244CommunityPurchased surface water
11Arbuckle Mountain Fried Pies - TonkawaKay50Transient non-communityGroundwater
12Kay County Rwd #2Kay50CommunityPurchased surface water
13Hideaway Rv ParkKay27Transient non-communityGroundwater
14Kay Electric CooperativeKay2CommunityGroundwater

Kay County water systems: frequently asked questions

How many public water systems are in Kay County, Oklahoma?

EPA's SDWIS records file 14 active public water systems under Kay County, Oklahoma: 12 community systems (86%) and 2 transient non-community systems (14%).

Who supplies drinking water in Kay County, OK?

The largest community water systems filed under Kay County are Ponca City Mun Water (27,155 people served), Blackwell Municipal Authority (7,668 people served) and Tonkawa (3,299 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 Kay County's drinking water come from groundwater or surface water?

Of the 14 active public water systems in Kay County, 50% draw mainly on groundwater and 50% on surface water, counting purchased supplies. The largest system, Ponca City Mun Water, uses surface water.

Where can I find a water quality report for Kay 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. 12 community systems are filed under Kay 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 Kay 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 Oklahoma 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 Kay County, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/kay (data as of October 1, 2026).