County · Texas
Grayson County, Texas: drinking water records
This overview covers 17 ZIP codes and 40 community water systems in Grayson 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 Sherman TX0910006 | 43,645 | 660 | 3 | 0 | 0 ppb |
| City of Denison TX0910003 | 27,500 | 120 | 0 | 0 | 1.8 ppb |
| City of Van Alstyne TX0910009 | 7,000 | 360 | 1 | 0 | 0.8 ppb |
| Two Way SUD TX0910022 | 6,804 | 331 | 1 | 0 | 0 ppb |
| South Grayson SUD TX0910064 | 6,750 | 300 | 1 | 0 | 7.5 ppb |
| Tanglewood on Texoma TX0910052 | 4,341 | 300 | 6 | 0 | 0 ppb |
| Luella SUD TX0910032 | 4,200 | 480 | 0 | 0 | 0 ppb |
| City of Whitesboro TX0910010 | 4,192 | 211 | 0 | 0 | 0 ppb |
| Northwest Grayson County WCID 1 TX0910137 | 3,615 | 0 | 0 | 2 | 0 ppb |
| Rra Preston Shores Water System TX0910037 | 2,277 | 0 | 0 | 55 | 0.5 ppb |
| City of Bells TX0910001 | 2,101 | 0 | 0 | 1 | 1.1 ppb |
| Ridgecrest Water System TX0910035 | 1,968 | 0 | 0 | 31 | 3.3 ppb |
| City of Whitewright TX0910011 | 1,638 | 0 | 0 | 1 | 0 ppb |
| City of Southmayd TX0910045 | 489 | 0 | 0 | 2 | 0 ppb |
| Northern Hills Water Service TX0910126 | 264 | 0 | 0 | 1 | 1.8 ppb |
| American Legion Mia Post 231 TX0910153 | 141 | 0 | 0 | 1 | 1.3 ppb |
| Munson Point Property Owners Association TX0910140 | 87 | 0 | 0 | 2 | 0 ppb |
| City of Howe TX0910013 | 4,548 | 0 | 0 | 0 | 3.5 ppb |
| Kentuckytown WSC TX0910060 | 4,083 | 0 | 0 | 0 | 2.1 ppb |
| Oak Ridge South Gale WSC TX0910033 | 3,153 | 0 | 0 | 0 | 1.2 ppb |
| Starr WSC TX0910046 | 3,100 | 0 | 0 | 0 | 0 ppb |
| Marilee Elmont TX0910055 | 3,021 | 0 | 0 | 0 | 0 ppb |
| City of Pottsboro TX0910004 | 2,874 | 0 | 0 | 0 | 3.8 ppb |
| Pink Hill WSC TX0910034 | 2,835 | 0 | 0 | 0 | 0 ppb |
| City of Gunter TX0910012 | 2,772 | 0 | 0 | 0 | 1.2 ppb |
ZIP reports in Grayson 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.