Water quality for ZIP code 78742
ZIP 78742 covers Austin in Travis County, Texas, one of 48 ZIP codes in the county. 143 active public water systems serve the county; 79 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Travis County
88 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Nighthawk WSC |
396 | 0 | 2.2 mi | |
| Austins Colony |
9,987 | 0 | 4.7 mi | |
| Kennedy Ridge WSC |
930 | 3 | 5.2 mi | |
| Garfield WSC |
1,950 | 5 | 6.6 mi | |
| City of Rollingwood |
1,611 | 2 | 7.9 mi | |
| Briarcreek Subdivision |
3,075 | 2 | 9.2 mi | |
| City of Sunset Valley |
1,524 | 1 | 9.5 mi | |
| Loop 360 WSC |
1,743 | 1 | 9.7 mi | |
| Travis County Wcid 10 |
9,204 | 1 | 10.1 mi | |
| Travis County MUD 2 |
3,294 | 0 | 10.6 mi | |
| City of Manor |
19,620 | 2 | 10.8 mi | |
| ST Stephens Episcopal School |
700 | 2 | 11.1 mi | |
| Wilbarger Creek MUD 1 |
3,459 | 1 | 11.2 mi | |
| Rivercrest WS |
1,437 | 2 | 11.3 mi | |
| Slaughter Creek Acres |
318 | 2 | 11.3 mi | |
| Cottonwood Creek MUD 1 |
5,082 | 1 | 11.4 mi | |
| Creedmoor Maha WSC |
8,907 | 2 | 11.6 mi | |
| Village of San Leanna |
522 | 1 | 11.7 mi | |
| Oak Shores Water System |
696 | 2 | 11.9 mi | |
| Mooreland Subdivision |
156 | 2 | 12.1 mi | |
| Forest Oaks Village |
50 | 6 | 12.1 mi | |
| Travis County MUD 4 |
6,816 | 2 | 12.1 mi | |
| Travis County Wcid 20 |
1,092 | 0 | 12.4 mi | |
| Mystic Oaks Water |
132 | 1 | 12.4 mi | |
| Northtown MUD |
11,520 | 1 | 12.6 mi |
Non-community systems in Travis County (54: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Travis County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.