Water quality for ZIP code 77520
ZIP 77520 covers Baytown and Houston in Harris County, Texas, one of 132 ZIP codes in the county. 1,320 active public water systems serve the county; 679 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 Harris County
713 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Harris County Fwsd 27 |
2,190 | 1 | 3.8 mi | |
| City of Morgans Point |
275 | 1 | 4.0 mi | |
| Lazy Acres Mobile Home Park |
75 | 3 | 4.1 mi | |
| Sjolander Road Mobile Home Park |
146 | 2 | 4.4 mi | |
| Barkaloo Homeowners Association |
42 | 6 | 4.6 mi | |
| O Aces MHP |
72 | 3 | 4.7 mi | |
| Harris County Fwsd 1a |
2,640 | 1 | 4.9 mi | |
| Lake MUD |
6,048 | 0 | 5.2 mi | |
| Cedar Bayou Estates |
60 | 0 | 5.4 mi | |
| Country Living Mobile Home Park |
72 | 4 | 5.5 mi | |
| Harris County Fwsd 1b |
672 | 5 | 5.7 mi | |
| Cedar Bayou Park |
294 | 4 | 5.8 mi | |
| Spring Meadows MUD |
4,224 | 0 | 5.8 mi | |
| City of la Porte |
36,569 | 1 | 5.9 mi | |
| Country Terrace Subdivision |
1,677 | 4 | 6.1 mi | |
| Delynn Water System |
55 | 2 | 6.1 mi | |
| McGee Place |
153 | 2 | 6.2 mi | |
| Chinquapin Preparatory School |
148 | 1 | 6.3 mi | |
| Canal Terrace Subdivision |
480 | 0 | 6.5 mi | |
| Harris County MUD 213-A |
1,926 | 0 | 6.7 mi | |
| Harris County Wcid 1 |
8,559 | 0 | 6.8 mi | |
| Hunters Village Subdivision |
174 | 0 | 7.3 mi | |
| Harris County Fwsd 6 |
2,229 | 2 | 7.6 mi | |
| Orchard Crossing Subdivision |
351 | 0 | 7.6 mi | |
| Glenwood Mobile Home Subdivision |
234 | 2 | 7.8 mi |
Non-community systems in Harris County (606: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Harris 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.