Water quality for ZIP code 78628
ZIP 78628 covers Georgetown, Serenada, Leander, Round Rock, and Liberty Hill 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 |
|---|---|---|---|---|
| South San Gabriel Ranches |
510 | 0 | 5.4 mi | |
| High Gabriel WSC |
492 | 3 | 5.8 mi | |
| Vista Oaks MUD |
2,724 | 0 | 8.0 mi | |
| City of Leander |
98,330 | 4 | 8.2 mi | |
| City of Liberty Hill |
8,777 | 2 | 8.4 mi | |
| San Gabriel River Ranches |
891 | 2 | 8.5 mi | |
| Block House MUD |
6,618 | 0 | 8.5 mi | |
| Williamson County MUD 10 |
3,513 | 1 | 9.0 mi | |
| Walsh Ranch MUD |
714 | 0 | 9.3 mi | |
| Williamson County MUD 11 |
4,248 | 1 | 9.3 mi | |
| Sunny Creek MHC |
510 | 0 | 9.4 mi | |
| Brushy Bend Park |
645 | 0 | 9.5 mi | |
| Tal Tex |
939 | 0 | 9.8 mi | |
| Fern Bluff MUD |
5,682 | 0 | 10.6 mi | |
| City of Cedar Park |
86,939 | 0 | 10.9 mi | |
| Brushy Creek MUD |
18,314 | 0 | 10.9 mi | |
| City of Round Rock |
130,662 | 0 | 11.1 mi | |
| Paloma Lake MUD 1 |
3,111 | 1 | 11.9 mi | |
| City of Florence |
1,136 | 5 | 12.0 mi | |
| Paloma Lake MUD 2 |
2,265 | 1 | 12.2 mi | |
| Liberty Greenline |
46 | 1 | 12.7 mi | |
| Durham Park WSC |
1,251 | 2 | 13.0 mi | |
| Blessing Mobile Home Park |
1,518 | 5 | 13.3 mi | |
| City of Jarrell |
3,450 | 2 | 13.9 mi | |
| Williamson Travis County MUD 1 |
5,793 | 1 | 14.0 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 |
|---|---|---|---|---|
|
Juniper RV Park |
21 | 2 | 0 | |
|
Inner Space Cavern |
310 | 0 | 0 | |
|
Live Oak Water Delivery |
25 | 2 | 0 | |
|
San Gabriel River RV Camp Resort |
300 | 1 | 0 | |
|
Community Christian Church |
180 | 1 | 0 | |
|
Txdps Tactical Training Center |
124 | 2 | 0 | |
|
Mesa Rosa Restaurant |
250 | 2 | 1 | |
|
Round Rock Roller Rink |
100 | 1 | 1 | |
|
200 County Road 314 |
37 | 7 | 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.