County · Mississippi
Harrison County, Mississippi: drinking water records
This overview covers 11 ZIP codes and 25 community water systems in Harrison 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 |
|---|---|---|---|---|---|
| Riverbend Utilities INC MS0240194 | 4,834 | 180 | 0 | 1 | 5.1 ppb |
| City of Gulfport MS0240003 | 75,056 | 1,200 | 0 | 0 | 1.5 ppb |
| City of Biloxi MS0240001 | 23,310 | 720 | 0 | 0 | 1 ppb |
| City of Long Beach MS0240005 | 18,514 | 420 | 0 | 0 | 2.9 ppb |
| Diberville W/S MS0240002 | 12,721 | 180 | 0 | 0 | 1.6 ppb |
| City of Pass Christian MS0240009 | 10,436 | 300 | 0 | 0 | 1 ppb |
| City of Biloxi-North MS0240084 | 9,858 | 360 | 0 | 0 | 1.1 ppb |
| Keesler Air Force Base MS0240049 | 8,006 | 420 | 1 | 0 | 1.9 ppb |
| City of Biloxi-French MS0240036 | 4,968 | 180 | 0 | 0 | 0.7 ppb |
| Naval Construction Battal Ctr MS0240060 | 3,347 | 180 | 0 | 0 | 1.5 ppb |
| Saucier Utilities MS0240011 | 1,853 | 0 | 0 | 1 | 1.0 ppb |
| The Oaks Utilities MS0240256 | 797 | 0 | 0 | 1 | 0 ppb |
| Echcpud-Tradition Subdivision MS0240266 | 557 | 0 | 0 | 1 | 0.8 ppb |
| Cedar Lake Biloxi, LLC MS0240026 | 422 | 0 | 0 | 1 | 1 ppb |
| Mcgill Wellworks, INC MS0240214 | 370 | 0 | 0 | 1 | 0.6 ppb |
| Echcpud-Desoto Trails Subdivision MS0240274 | 166 | 0 | 0 | 1 | 0 ppb |
| Tuxachanie Estates #2 MS0240089 | 95 | 0 | 0 | 3 | 1.8 ppb |
| Sutter Water Service-Magnolia Springs MS0240271 | 1,201 | 0 | 0 | 0 | 0 ppb |
| West Harrison Water & Sewer District MS0240277 | 689 | 0 | 0 | 0 | 1.2 ppb |
| Hcua-East MS0240272 | 404 | 0 | 0 | 0 | 0 ppb |
| Pineville Project III South MS0240254 | 100 | 0 | 0 | 0 | 1.2 ppb |
| City of Biloxi-Magnolia Bend MS0240255 | 73 | 0 | 0 | 0 | 1.2 ppb |
| Hcua-West MS0240270 | 172 | 0 | 0 | 0 | not reported |
| Hcua-North MS0240273 | 0 | 0 | 0 | 0 | not reported |
| Hcua-Traditions MS0240257 | 0 | 0 | 0 | 0 | not reported |
ZIP reports in Harrison 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.