Water quality for ZIP code 78504
ZIP 78504 covers McAllen and Edinburg in Hidalgo County, Texas, one of 29 ZIP codes in the county. 31 active public water systems serve the county; 25 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 Hidalgo County
24 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| City of Mission |
77,058 | 2 | 7.4 mi | |
| City of Pharr |
79,715 | 0 | 7.7 mi | |
| City of San Juan |
30,000 | 1 | 7.8 mi | |
| Sharyland WSC |
68,562 | 0 | 9.6 mi | |
| City of Alamo |
21,065 | 2 | 9.7 mi | |
| Hidalgo County MUD 1 |
8,420 | 3 | 10.8 mi | |
| City of Hidalgo Water System |
14,800 | 4 | 11.5 mi | |
| Quiet Village II |
492 | 4 | 12.0 mi | |
| Agua SUD |
53,796 | 0 | 13.1 mi | |
| City of Donna |
18,720 | 2 | 14.2 mi | |
| City of la Joya |
3,033 | 7 | 14.5 mi | |
| City of Elsa |
5,500 | 2 | 15.1 mi | |
| Military Hwy WSC Weslaco |
1,584 | 0 | 16.2 mi | |
| City of Edcouch |
2,878 | 2 | 17.0 mi | |
| City of Weslaco |
40,033 | 2 | 17.4 mi | |
| Trails End Mobile Home Park |
200 | 2 | 17.8 mi | |
| Military Hwy WSC Progreso |
12,198 | 0 | 18.8 mi | |
| City of la Villa |
2,781 | 3 | 19.3 mi | |
| Llano Grande Lake Park West |
300 | 4 | 20.6 mi | |
| Llano Grande Lake Park East |
1,300 | 3 | 21.0 mi | |
| City of Mercedes |
16,258 | 3 | 22.0 mi | |
| City of Edinburg |
85,224 | 3 | 22.7 mi | |
| North Alamo WSC |
171,195 | 3 | 27.1 mi | |
| Military Hwy WSC las Rusias |
17,943 | 2 | 36.6 mi |
Non-community systems in Hidalgo County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Aqua Planet Water Park |
110 | 2 | 0 | |
|
Bentsen Grove Resort |
1,550 | 1 | 0 | |
|
Sleepy Hollow Trailer Park |
55 | 0 | 0 | |
|
Leisure World Mobile Home Community |
700 | 1 | 0 | |
|
Lazy Palms Ranch |
400 | 3 | 1 | |
|
Usda Moore Field |
100 | 1 | 1 |
About this data
Water systems are matched to Hidalgo 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.