Water quality for ZIP code 77356
ZIP 77356 covers Montgomery and Conroe in Montgomery County, Texas, one of 22 ZIP codes in the county. 472 active public water systems serve the county; 228 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 Montgomery County
337 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Flamingo Lakes Lot Owners Association in |
246 | 2 | 2.6 mi | |
| Hidden Forest Estates |
990 | 2 | 3.4 mi | |
| Forest Woods Subdivision |
237 | 1 | 3.9 mi | |
| Mount Pleasant Village Water System |
255 | 1 | 4.0 mi | |
| Big Oaks Ranchette Subdivision |
42 | 1 | 4.2 mi | |
| City of Montgomery |
3,771 | 3 | 5.5 mi | |
| Grand Harbor Water System |
2,370 | 0 | 5.5 mi | |
| Lake Conroe Terrace Water System |
57 | 1 | 5.6 mi | |
| Harborside |
432 | 0 | 6.1 mi | |
| Havenshire Water System |
63 | 3 | 6.6 mi | |
| Montgomery County MUD 18 |
7,608 | 0 | 6.6 mi | |
| Del Lago Estates WSC |
204 | 1 | 6.9 mi | |
| Conroe Resort |
1,068 | 2 | 7.0 mi | |
| Clear Water Cove |
645 | 0 | 7.1 mi | |
| Caney Creek Utility |
153 | 0 | 7.3 mi | |
| Stanley Lake MUD |
3,783 | 0 | 7.6 mi | |
| Montgomery County MUD 166 |
1,443 | 0 | 7.7 mi | |
| Sunrise Ranch |
468 | 0 | 7.8 mi | |
| Yesterdays Crossing |
105 | 1 | 7.9 mi | |
| Montgomery County MUD 9 |
5,949 | 1 | 7.9 mi | |
| Montgomery County MUD 8 |
5,472 | 1 | 8.9 mi | |
| Lakewood on Lake Conroe Poa |
96 | 2 | 9.0 mi | |
| Lake Lorraine WS |
126 | 2 | 9.0 mi | |
| Vista Verde Water Systems |
111 | 5 | 9.1 mi | |
| Cape Malibu WSC |
250 | 1 | 9.2 mi |
Non-community systems in Montgomery County (134: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Montgomery 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.