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Matagorda County, Texas — public water systems

At a glance

42 active public water systems are filed under Matagorda County, Texas in EPA's SDWIS records, together reporting 39,524 people served. The largest is City of Bay City, which reports serving 18,061 people. 25 are community water systems serving people where they live; the other 17 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

42

Population served

39.5K

Community systems

25

Groundwater share

100%

How does Matagorda County compare with other Texas counties?

Matagorda County has the 34th-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 39,524 people served in total, the 83rd-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 941 people, well 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 Matagorda County's drinking water come from?

By primary water source, Matagorda County's active systems draw on groundwater (42, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none 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 Bay City, draws primarily on groundwater.

What kinds of water systems operate in Matagorda County?

Matagorda County's active systems break down as 25 community systems (60%), 6 non-transient non-community systems (14%) and 11 transient non-community systems (26%). 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 (62%) and local government (38%).

Water systems in Matagorda County

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Active public water systems in Matagorda County, Texas
#Water systemCountyPopulation servedTypeSource
1City of Bay CityMatagorda18,061CommunityGroundwater
2City of PalaciosMatagorda4,700CommunityGroundwater
3Caney Creek MUD of Matagorda CountyMatagorda2,764CommunityGroundwater
4Matagorda WSCMatagorda1,746CommunityGroundwater
5Matagorda County Wcid 6Matagorda1,518CommunityGroundwater
6Markham MUDMatagorda1,400CommunityGroundwater
7Matagorda County Wcid 5Matagorda1,128CommunityGroundwater
8Tres Palacios Oaks SubdivisionMatagorda774CommunityGroundwater
9Selkirk WSCMatagorda678CommunityGroundwater
10Main Potable Water SystemMatagorda603Non-transient non-communityGroundwater
11Wadsworth WSCMatagorda570CommunityGroundwater
12Matagorda County Wcid 2Matagorda564CommunityGroundwater
13Nsc Ntf Potable Water SystemMatagorda502Non-transient non-communityGroundwater
14Tidehaven Consolidated Jr & Sr High TisdMatagorda500Non-transient non-communityGroundwater
15Matagorda Dunes SubdivisionMatagorda429CommunityGroundwater
16Midfield WSCMatagorda426CommunityGroundwater
17River Oaks WSCMatagorda382CommunityGroundwater
18Camelot Forest Water SystemMatagorda297CommunityGroundwater
19Equistar Chemical LpMatagorda210Non-transient non-communityGroundwater
20Tc Country StoreMatagorda203Transient non-communityGroundwater
21Oxea Corporation Bay City PlantMatagorda192Non-transient non-communityGroundwater
22Tidewater Oaks SubdivisionMatagorda189CommunityGroundwater
23Old Oaks ResortMatagorda162Transient non-communityGroundwater
24Letulle Estates Chinquapin 1Matagorda150CommunityGroundwater
25Stonebridge Rv ParkMatagorda147Transient non-communityGroundwater
26Spanish Bit Plantation SubdivisionMatagorda126CommunityGroundwater
27Eldorado WaterMatagorda120CommunityGroundwater
28Rio Colorado Golf CourseMatagorda100Transient non-communityGroundwater
29River Bend Water ServicesMatagorda100CommunityGroundwater
30Riverside Park Water Bay CityMatagorda100Transient non-communityGroundwater
31Frost Mobile Home ParkMatagorda84CommunityGroundwater
32Oak Hollow SubdivisionMatagorda78CommunityGroundwater
33Bowers Shrimp FarmMatagorda75Non-transient non-communityGroundwater
34Holiday Harbor SubdivisionMatagorda75CommunityGroundwater
35City of Bay City Letulle ParkMatagorda70Transient non-communityGroundwater
36Berts Rv ParkMatagorda60Transient non-communityGroundwater
37Lighthouse Landing Rv ParkMatagorda55Transient non-communityGroundwater
38Waypoint LandingMatagorda54CommunityGroundwater
39Matagorda County Nature Center Inc.Matagorda52Transient non-communityGroundwater
40Live Oak Landing SubdivisionMatagorda30CommunityGroundwater
41Nile Valley Rv ParkMatagorda28Transient non-communityGroundwater
42Sh Rv ParkMatagorda22Transient non-communityGroundwater

Matagorda County water systems: frequently asked questions

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

EPA's SDWIS records file 42 active public water systems under Matagorda County, Texas: 25 community systems (60%), 6 non-transient non-community systems (14%) and 11 transient non-community systems (26%).

Who supplies drinking water in Matagorda County, TX?

The largest community water systems filed under Matagorda County are City of Bay City (18,061 people served), City of Palacios (4,700 people served) and Caney Creek MUD of Matagorda County (2,764 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 Matagorda County's drinking water come from groundwater or surface water?

Of the 42 active public water systems in Matagorda County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, City of Bay City, uses groundwater.

Where can I find a water quality report for Matagorda 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. 25 community systems are filed under Matagorda 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 Matagorda 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 Matagorda County, Texas”, https://aquacensus.com/water-systems/texas/matagorda (data as of October 1, 2026).