County · Texas
Wilson County, Texas: drinking water records
This overview covers 7 ZIP codes and 12 community water systems in Wilson 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 Floresville TX2470001 | 8,306 | 180 | 0 | 1 | 0.1 ppb |
| Ss WSC TX2470015 | 20,826 | 300 | 0 | 0 | 1.3 ppb |
| Oak Hills WSC TX2470009 | 6,225 | 120 | 0 | 0 | 2.2 ppb |
| Sunko WSC TX2470005 | 5,064 | 120 | 0 | 0 | 1.1 ppb |
| City of Poth TX2470002 | 2,994 | 0 | 0 | 1 | 0.5 ppb |
| City of Stockdale TX2470003 | 1,201 | 0 | 0 | 1 | 1.6 ppb |
| Picosa WSC TX2470026 | 3,210 | 0 | 0 | 0 | 1.1 ppb |
| City of la Vernia TX2470004 | 2,526 | 0 | 0 | 0 | 1.5 ppb |
| Eagle Creek Ranch TX2470022 | 2,409 | 0 | 0 | 0 | 1.7 ppb |
| Three Oaks WSC TX2470007 | 2,007 | 0 | 0 | 0 | 0 ppb |
| Creekwood Estates TX2470021 | 876 | 0 | 0 | 0 | 0 ppb |
| Seven Oaks Water Supply TX2470016 | 165 | 0 | 0 | 0 | 2.5 ppb |
ZIP reports in Wilson 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.