Water quality for ZIP code 76203
ZIP 76203 covers Denton in Denton County, Texas, one of 27 ZIP codes in the county. 93 active public water systems serve the county; 68 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Denton County
81 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| City of Lewisville |
140,880 | 1 | |
| Mustang SUD |
127,911 | 3 | |
| Town of Flower Mound |
80,000 | 1 | |
| City of the Colony |
45,367 | 0 | |
| Town of Little Elm |
43,348 | 2 | |
| City of Corinth |
23,213 | 1 | |
| Lake Cities Municipal Utility Authority |
17,826 | 2 | |
| City of Highland Village |
16,500 | 2 | |
| Trophy Club MUD 1 |
13,649 | 0 | |
| Denton County Fwsd 7 |
12,837 | 2 | |
| Argyle WSC |
12,720 | 4 | |
| Bolivar WSC |
11,901 | 0 | |
| Town of Northlake |
10,430 | 0 | |
| City of Sanger |
10,166 | 2 | |
| City of Roanoke |
10,127 | 0 | |
| City of Hackberry |
9,593 | 3 | |
| Cross Timbers WSC |
8,751 | 4 | |
| City of Pilot Point |
7,836 | 2 | |
| City of Justin |
7,537 | 2 | |
| Town of Providence Village |
7,128 | 0 | |
| City of Krum |
6,062 | 2 | |
| Frisco West Wcid |
5,805 | 0 | |
| Elm Ridge Wcid |
5,061 | 0 | |
| City of Aubrey |
4,058 | 4 | |
| Town of Ponder |
2,851 | 1 |
Non-community systems in Denton County (11: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Tpwd Ray Roberts Lake Isle Dubois |
4,056 | 2 | 1 | |
|
Camp Copass |
800 | 1 | 1 | |
|
The Campsite RV Park |
447 | 1 | 1 | |
|
Hidden Cove Park |
264 | 2 | 1 | |
|
Ventura Luxury RV Community |
255 | 0 | 0 | |
|
Countryside RV Resort |
188 | 0 | 0 | |
|
Iaa Fort Worth North |
176 | 5 | 2 | |
|
Als Convenience 5 |
100 | 1 | 0 | |
|
Northshore Club |
72 | 1 | 0 | |
|
Oldcastle Northlake Plant |
60 | 3 | 0 | |
|
Northlake Acres |
33 | 0 | 0 |
About this data
Water systems are matched to Denton County, the county this ZIP code lies in, largest 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.
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.