County · Mississippi
Hancock County, Mississippi: drinking water records
This overview covers 6 ZIP codes and 12 community water systems in Hancock 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 Bay St Louis MS0230001 | 9,284 | 240 | 0 | 5 | 9 ppb |
| City of Waveland MS0230002 | 6,400 | 240 | 0 | 2 | 7.9 ppb |
| Standard Dedeaux Water Association MS0230063 | 5,386 | 180 | 0 | 1 | 0.8 ppb |
| Diamondhead Utilities-North MS0230005 | 12,577 | 240 | 0 | 0 | 1.2 ppb |
| Kiln Utility and Fire District of Hancoc MS0230050 | 7,051 | 60 | 0 | 0 | 1.1 ppb |
| Stennis Space Center MS0230015 | 4,700 | 240 | 0 | 0 | 5 ppb |
| Hancock County Water & Sewer MS0230065 | 3,254 | 0 | 0 | 8 | 6.3 ppb |
| Pearlington Water and Sewer District MS0230067 | 1,412 | 0 | 0 | 0 | 1.4 ppb |
| Sunrise Mobile Home Park MS0230057 | 25 | 0 | 0 | 0 | 1.6 ppb |
| Hancock County Water & Sewer- Bayside MS0230071 | 2,458 | 0 | 0 | 0 | not reported |
| Hancock County Utility Authority MS0230069 | 0 | 0 | 0 | 0 | not reported |
| Hancua-Pearlington MS0230070 | 0 | 0 | 0 | 0 | not reported |
ZIP reports in Hancock 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.