Water quality for ZIP code 77433
ZIP 77433 covers Houston in Harris County, Texas, one of 132 ZIP codes in the county. 1,320 active public water systems serve the county; 683 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 MUD 489 |
10,476 | 0 | 1.2 mi | |
| Harris County MUD 433 |
6,651 | 0 | 1.9 mi | |
| Harris County MUD 374 Cypress Creek Lake |
5,526 | 0 | 1.9 mi | |
| Harris County MUD 371 |
2,577 | 0 | 2.0 mi | |
| Harris County MUD 490 |
1,293 | 1 | 2.5 mi | |
| Cypress Creek Ranch |
276 | 0 | 2.7 mi | |
| Harris County MUD 502 |
5,487 | 0 | 2.8 mi | |
| Harris County MUD 501 |
4,740 | 1 | 2.9 mi | |
| Harris County MUD 165 |
40,503 | 0 | 3.2 mi | |
| Harris County MUD 358 |
222 | 0 | 3.3 mi | |
| Harris County MUD 391 |
8,835 | 0 | 3.4 mi | |
| Harris County MUD 322 |
4,266 | 0 | 3.6 mi | |
| Harris County MUD 500 |
1,158 | 0 | 3.7 mi | |
| Harris County MUD 196 |
7,026 | 2 | 3.7 mi | |
| Cypress Hill MUD 1 |
11,052 | 0 | 3.7 mi | |
| Central Harris County Regional Water Aut |
0 | 1 | 4.0 mi | |
| Harris County MUD 354 |
6,588 | 1 | 4.2 mi | |
| Harris County MUD 172 |
4,404 | 1 | 4.3 mi | |
| Western Trails Subdivision |
126 | 0 | 4.3 mi | |
| Harris County MUD 397 |
4,413 | 0 | 4.4 mi | |
| Remington MUD 1 |
13,746 | 0 | 4.5 mi | |
| Harris County MUD 365 |
4,461 | 2 | 4.6 mi | |
| Harris County MUD 156 |
2,082 | 0 | 4.7 mi | |
| Cypress Bend Subdivision |
819 | 2 | 4.7 mi | |
| Harris County MUD 434 |
3,690 | 0 | 4.8 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.