Texas water systems, mapped
2,645 systems drawn on their service areas, coloured by the most recent water loss figure each one filed. Every shape is a link to that system's own filings.
- under 8.2%
- 8.2%–13.6%
- 13.6%–20.8%
- 20.8%–31.8%
- over 31.8%
- no figure filed
What a shape here is
The service areas come from the US EPA's national boundary layer, which the agency publishes as an estimate: it disclaims the spatial accuracy of the features and names local government as the accurate source. Some of those shapes were published by a state agency, a county or the utility itself, and some EPA modelled. In Texas, 2 of the 2,645 shapes drawn here are EPA models rather than published boundaries.
A boundary is not a customer list and not a legal service territory. Two systems can cover the same ground — a wholesaler and the retailer it supplies — and being inside one of these shapes does not make an address that system's ratepayer.
What is not on the map
61 Texas systems have filings on this site and no boundary in EPA's layer, so they are absent from the map and listed here instead:
- Altoga Water Supply Corp
- Ancar
- Austin River Place
- Bandera Homestead Condominiums
- Bland Lake Rural Water Supply Corp
- Blue Water Cove
- Buena Vista Ws Burnet
- Carroll Water Supply Corp Well 4
- Chisholm Trail SUD
- Clear Water Estates
- Country Place Northwest
- Deerfield Estates
- Denton County FWSD 1-a Castle Hills
- Denton County FWSD 10 Savannah
- Fort Bend County MUD 111
- Fort Bend County MUD 67
- Fort Bend County MUD 69
- Golden Water Supply Corp 2
- Greens Parkway MUD
- Harris County MUD 275
- Harris County MUD 461
- Jacobia Water Supply Corp
- Karnack Water Supply Corp
- La Salle WCID 1-a
- Lake Livingston Branchwood
- Lake Livingston Eagles Nest
- Lake Livingston Estates 4 & 5
- Lake Livingston Forest Hills
- Lake Livingston Green Acres
- Lake Livingston Impala Woods
- Lake Livingston Indian Hills 2
- Lake Livingston Natasha Heights
- Lake Livingston Oakridge
- Lake Livingston Paradise Acres
- Lake Livingston Pine Shadows
- Lake Livingston Wayward Winds Oasis
- Lake Livingston Weavers Cove
- Lake Valley
- Lazy Nine MUD 1a
- Lost Creek MUD
- Malone Addition Water Supply
- Marilee SUD
- Markout Water Supply Corp
- Midway Water
- Montgomery County MUD 126
- Montgomery County MUD 145
- Mustang SUD Light Ranch Estates
- Peach Creek Colony
- Pflugerville N Travis MUD 5
- Polonia Water Supply Corp
- Polonia Water Supply Corp North
- Polonia Water Supply Corp South
- Ramireno Water Supply Corp
- Rock Creek Water Supply Corp
- Sam Houston Lake Estates 1
- Shady Shores
- Sjwtx Summit North Sub
- Thunderbird Bay Sub
- Thunderbird Point
- Vista Ranch
- Wolfforth Place
Boundaries: US EPA Office of Research and Development, community water system service area boundaries,
retrieved 2026-09-09 and archived as data/archive/epa-cws-boundaries/2026-09-09-tx.geojson. The state outline behind them is a
US Census cartographic boundary file, drawn for orientation; no figure here is derived from it. Figures: Texas Water Development Board, as
filed by each utility — the Texas index carries them as a table, and
each system's page carries the archived cell every figure was read from.
Report a correction.