County · Texas
Medina County, Texas: drinking water records
This overview covers 9 ZIP codes and 28 community water systems in Medina County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Hondo TX1630002 | 11,044 | 180 | 0 | 1 | 1.4 ppb |
| City of Devine TX1630006 | 4,335 | 180 | 0 | 2 | 0.8 ppb |
| Benton City WSC TX1630034 | 32,000 | 240 | 0 | 0 | 0.7 ppb |
| Yancey WSC TX1630021 | 12,186 | 240 | 0 | 0 | 3.5 ppb |
| East Medina County SUD Unit 1 TX1630010 | 6,153 | 60 | 0 | 0 | 1.5 ppb |
| West Medina WSC TX1630027 | 1,683 | 0 | 0 | 1 | 1.9 ppb |
| City of Natalia TX1630009 | 1,336 | 0 | 0 | 1 | 0 ppb |
| Medina County WCID 2 TX1630008 | 756 | 0 | 0 | 1 | 1.2 ppb |
| Gusville Mobile Home Park TX1630031 | 273 | 0 | 0 | 12 | 0 ppb |
| Summit Ridge TX1630048 | 252 | 0 | 0 | 1 | 0.6 ppb |
| Valley Mobile Home Properties TX1630011 | 219 | 0 | 0 | 1 | 0 ppb |
| Rio Medina Estates TX1630022 | 201 | 0 | 0 | 1 | 4 ppb |
| City of Castroville TX1630005 | 3,913 | 0 | 0 | 0 | 0 ppb |
| East Medina County SUD Unit 2 TX1630020 | 2,505 | 0 | 0 | 0 | 0 ppb |
| City of la Coste TX1630004 | 1,488 | 0 | 0 | 0 | 4.6 ppb |
| East Medina County SUD Unit 3 TX1630030 | 1,365 | 0 | 0 | 0 | 0 ppb |
| Old Hwy 90 Water Service TX1630035 | 1,215 | 0 | 0 | 0 | 0 ppb |
| Medina River West WSC TX1630028 | 1,158 | 0 | 0 | 0 | 1.5 ppb |
| West View Subdivision TX1630039 | 900 | 0 | 0 | 0 | 3.1 ppb |
| East Medina County SUD Unit 4 TX1630029 | 483 | 0 | 0 | 0 | 0 ppb |
| Dancing Bear TX1630045 | 444 | 0 | 0 | 0 | 2.6 ppb |
| Highway 90 Ranch WSC TX1630014 | 412 | 0 | 0 | 0 | 2.3 ppb |
| Country View Estates TX1630026 | 330 | 0 | 0 | 0 | 1 ppb |
| Medina Valley Water Supply Co TX1630036 | 255 | 0 | 0 | 0 | 0 ppb |
| Old Hwy 90 N Ridge W System TX1630041 | 246 | 0 | 0 | 0 | 0.6 ppb |
ZIP reports in Medina County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.