Atascosa County, Texas — public water systems

At a glance

12 active public water systems are filed under Atascosa County, Texas in EPA's SDWIS records, together reporting 45,736 people served. The largest is City of Pleasanton, which reports serving 17,985 people. 8 are community water systems serving people where they live; the other 4 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

45.7K

Community systems

Groundwater share

83.3%

How does Atascosa County compare with other Texas counties?

Atascosa County has the 112th-most active public water systems among the 309 counties listed for active Texas systems in EPA records; among the 234 with 3 or more systems, the median has 12. Its systems report 45,736 people served in total, the 74th-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 3,811 people, about 20% below the Texas average of 4,789. 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 Atascosa County's drinking water come from?

By primary water source, Atascosa County's active systems draw on groundwater (10, 83%) and purchased surface water (2, 17%). Overall, 83% rely mainly on groundwater (including purchased groundwater) and 17% on surface water, compared with 78% and 21% across Texas. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Pleasanton, draws primarily on groundwater.

What kinds of water systems operate in Atascosa County?

Atascosa County's active systems break down as 8 community systems (67%), 1 non-transient non-community systems (8.3%) and 3 transient non-community systems (25%). 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 local government (67%) and private (33%).

Water systems in Atascosa County

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Active public water systems in Atascosa County, Texas
#	Water system	County	Population served	Type	Source
1	City of Pleasanton	Atascosa	17,985	Community	Groundwater
2	Mccoy WSC	Atascosa	9,621	Community	Groundwater
3	City of Jourdanton	Atascosa	5,721	Community	Groundwater
4	City of Lytle	Atascosa	4,860	Community	Groundwater
5	City of Poteet	Atascosa	3,396	Community	Groundwater
6	City of Charlotte	Atascosa	2,247	Community	Groundwater
7	City of Christine	Atascosa	696	Community	Groundwater
8	Fashing Peggy Water System	Atascosa	474	Community	Groundwater
9	San Miguel Electric Cooperative	Atascosa	461	Non-transient non-community	Groundwater
10	Kuntry Korner	Atascosa	200	Transient non-community	Groundwater
11	Bigfoot	Atascosa	50	Transient non-community	Purchased surface water
12	Willda Beast Water Hauler	Atascosa	25	Transient non-community	Purchased surface water

Atascosa County water systems: frequently asked questions

How many public water systems are in Atascosa County, Texas?

EPA's SDWIS records file 12 active public water systems under Atascosa County, Texas: 8 community systems (67%), 1 non-transient non-community systems (8.3%) and 3 transient non-community systems (25%).

Who supplies drinking water in Atascosa County, TX?

The largest community water systems filed under Atascosa County are City of Pleasanton (17,985 people served), Mccoy WSC (9,621 people served) and City of Jourdanton (5,721 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 Atascosa County's drinking water come from groundwater or surface water?

Of the 12 active public water systems in Atascosa County, 83% draw mainly on groundwater and 17% on surface water, counting purchased supplies. The largest system, City of Pleasanton, uses groundwater.

Where can I find a water quality report for Atascosa 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. 8 community systems are filed under Atascosa 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 Atascosa 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 Texas 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 Atascosa County, Texas”, https://aquacensus.com/water-systems/texas/atascosa (data as of October 1, 2026).