County · Mississippi
Simpson County, Mississippi: drinking water records
This overview covers 6 ZIP codes and 16 community water systems in Simpson County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Okatoma Water Association #2 MS0640022 | 5,866 | 300 | 0 | 0 | 0.7 ppb |
| Smiths Crossing Water Assn MS0640014 | 4,480 | 300 | 1 | 0 | 10.3 ppb |
| City of Magee MS0640006 | 3,526 | 120 | 0 | 0 | 12 ppb |
| Okatoma Water Association #1 MS0640009 | 3,981 | 0 | 0 | 0 | 3 ppb |
| New Hope Water Association MS0640008 | 2,587 | 0 | 0 | 0 | 0.5 ppb |
| City of Mendenhall MS0640007 | 2,500 | 0 | 0 | 0 | 0 ppb |
| Highway 28 Water Association MS0640005 | 2,500 | 0 | 0 | 0 | 0 ppb |
| Shivers Water Association MS0640021 | 2,200 | 0 | 0 | 0 | 1.7 ppb |
| Harrisville W/A MS0640004 | 1,967 | 0 | 0 | 0 | 1.6 ppb |
| Boggan Ridge W/A MS0640001 | 1,500 | 0 | 0 | 0 | 0.6 ppb |
| Poplar Springs Water District MS0640012 | 1,188 | 0 | 0 | 0 | 0.6 ppb |
| Boggan Ridge W/A-Pine Grove MS0640011 | 1,177 | 0 | 0 | 0 | 0 ppb |
| Town of Braxton MS0640002 | 800 | 0 | 0 | 0 | 1.2 ppb |
| Town of Dlo MS0640003 | 510 | 0 | 0 | 0 | 5.8 ppb |
| Boswell Regional Center MS0640013 | 248 | 0 | 0 | 0 | 0.3 ppb |
| Troy Terrace MHP WI2650124 | 150 | 0 | 0 | 0 | 0.9 ppb |
ZIP reports in Simpson County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 39149.
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.