Water quality for ZIP code 76537
ZIP 76537 covers Jarrell and Sonterra in Williamson County, Texas, one of 19 ZIP codes in the county. 52 active public water systems serve the county; 34 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 Williamson County
39 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| City of Jarrell |
3,450 | 2 | 1.0 mi | |
| Jarrell Schwertner WSC |
9,681 | 0 | 5.4 mi | |
| Sunny Creek MHC |
510 | 0 | 6.8 mi | |
| City of Georgetown |
191,639 | 3 | 10.0 mi | |
| City of Bartlett |
2,950 | 7 | 10.2 mi | |
| City of Florence |
1,136 | 5 | 11.0 mi | |
| City of Granger |
1,914 | 5 | 11.8 mi | |
| Jonah Water SUD |
29,861 | 1 | 12.7 mi | |
| Williamson County MUD 11 |
4,248 | 1 | 17.0 mi | |
| Paloma Lake MUD 2 |
2,265 | 1 | 17.6 mi | |
| Williamson County MUD 10 |
3,513 | 1 | 17.7 mi | |
| Paloma Lake MUD 1 |
3,111 | 1 | 17.9 mi | |
| San Gabriel River Ranches |
891 | 2 | 19.4 mi | |
| City of Hutto |
29,580 | 0 | 19.9 mi | |
| City of Taylor |
20,622 | 0 | 20.1 mi | |
| South San Gabriel Ranches |
510 | 0 | 20.2 mi | |
| City of Round Rock |
130,662 | 0 | 20.2 mi | |
| Vista Oaks MUD |
2,724 | 0 | 20.5 mi | |
| High Gabriel WSC |
492 | 3 | 20.6 mi | |
| Brushy Creek Regional Utility Authority |
0 | 0 | 20.9 mi | |
| Walsh Ranch MUD |
714 | 0 | 20.9 mi | |
| Tal Tex |
939 | 0 | 21.5 mi | |
| Williamson County Wsid 3 |
8,265 | 1 | 21.5 mi | |
| City of Liberty Hill |
8,777 | 2 | 21.6 mi | |
| Brushy Bend Park |
645 | 0 | 21.7 mi |
Non-community systems in Williamson County (12: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
200 County Road 314 |
37 | 7 | 1 | |
|
Txdps Tactical Training Center |
124 | 2 | 0 | |
|
San Gabriel River RV Camp Resort |
300 | 1 | 0 | |
|
Inner Space Cavern |
310 | 0 | 0 | |
|
Live Oak Water Delivery |
25 | 2 | 0 | |
|
Juniper RV Park |
21 | 2 | 0 | |
|
Community Christian Church |
180 | 1 | 0 | |
|
Mesa Rosa Restaurant |
250 | 2 | 1 | |
|
Round Rock Roller Rink |
100 | 1 | 1 | |
|
Smilin V Ranch |
256 | 1 | 0 | |
|
Premier Athletic Complex |
25 | 2 | 0 | |
|
Simple Water Solutions |
25 | 1 | 0 |
About this data
Water systems are matched to Williamson 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.