EPA data as of Oct 2026 · page updated 2026-10-29
Mississippi: drinking water & radon
Mississippi has 988 active community water systems. Since 2016, 297 reported health-based violations; 10 had a latest lead result above 15 ppb; 7 measured PFOA or PFOS at or above 4 ppt.
Water systems988
With violations297
Radon zone 1 ZIPs0
ZIPs likely on wells53
Radon zones in Mississippi
tap a countyZone 1 · highestZone 2 · moderateZone 3 · low
Most health-based violations
| City of Jackson 189,673 people | 37 |
| Truelight Redevelopment GRP #2 546 people | 27 |
| Moore Bayou W/A #3 378 people | 23 |
| South Central Water ASSN 12,260 people | 23 |
| North Hinds W/A #2-Chapel Hill 1,595 people | 16 |
| Hiwannee Water Association #2 956 people | 15 |
| Town of Doddsville 264 people | 14 |
| Coahoma Utility Dist #2 645 people | 14 |
| Traxler Water Association 855 people | 13 |
| Town of Edwards 1,980 people | 12 |
Highest latest lead (90th percentile)
| Mantee Water Association 486 people | 110 ppb |
| Deeson Roundlake #2 243 people | 82 ppb |
| Romola Water Association 600 people | 68.6 ppb |
| Town of Eden 123 people | 41.5 ppb |
| Town of New Hebron 386 people | 26.9 ppb |
| Renshaw Water Association 467 people | 24.6 ppb |
| Choctaw - Bogue Chitto 919 people | 19 ppb |
| Golding Acres Water ASSN 99 people | 18.2 ppb |
| S Ms Public Water Auth-Mclaurin 905 people | 16.9 ppb |
| Pearl River Central W/A-Bi Co 4,406 people | 16.6 ppb |
Highest PFOA / PFOS
| City of Oxford 28,500 people | 72.2 ppt |
| Smiths Crossing Water ASSN 4,480 people | 10.8 ppt |
| City of Corinth 15,000 people | 10.6 ppt |
| City of Holly Springs 9,779 people | 9.6 ppt |
| Keesler Air Force Base 8,006 people | 7.7 ppt |
| Sunrise Utility ASSN INC 6,067 people | 5.5 ppt |
| University of Mississippi 26,874 people | 5.5 ppt |
Largest systems
| City of Jackson 189,673 people | 189,673 |
| City of Gulfport 75,056 people | 75,056 |
| City of Southaven 56,000 people | 56,000 |
| City of Olive Branch 54,025 people | 54,025 |
| City of Hattiesburg 43,449 people | 43,449 |
| City of Tupelo 37,000 people | 37,000 |
| City of Meridian 34,466 people | 34,466 |
| City of Starkville 32,027 people | 32,027 |
| City of Brandon 31,852 people | 31,852 |
| City of Flowood 31,574 people | 31,574 |
All ZIP codes in Mississippi
524 ZIP codes.
38601Abbeville38602Arkabutla38603Ashland38606Batesville38609Belen38610Blue Mountain38611Byhalia38614Clarksdale38617Coahoma38618Coldwater38619Como38620Courtland38621Crenshaw38622Crowder38623Darling38625Dumas38626Dundee38627Etta38628Falcon38629Falkner38630Farrell38631Friars Point38632Hernando38633Hickory Flat38634Holly Springs38635Holly Springs38637Horn Lake38638Independence38639Jonestown38641Lake Cormorant38642Lamar38643Lambert38644Lula38645Lyon38646Marks38647Michigan City38649Mount Pleasant38650Myrtle38651Nesbit38652New Albany38654Olive Branch38655Oxford38658Pope38659Potts Camp38661Red Banks38663Ripley38664Robinsonville38665Sarah38666Sardis38668Senatobia38669Sherard38670Sledge38671Southaven38672Southaven38673Taylor38674Tiplersville38675Tula38676Tunica38677University38679Victoria38680Walls38683Walnut38685Waterford38686Walls38701Greenville38702Greenville38703Greenville38704Greenville38720Alligator38721Anguilla38722Arcola38723Avon38725Benoit38726Beulah38730Boyle38731Chatham38732Cleveland38736Doddsville38737Drew38738Parchman38739Dublin38740Duncan38744Glen Allan38745Grace38746Gunnison38748Hollandale38749Indianola38751Indianola38753Inverness38754Isola38756Leland38759Merigold38760Metcalfe38761Moorhead38762Mound Bayou38764Pace38765Panther Burn38767Rena Lara38768Rome38769Rosedale38771Ruleville38772Scott38773Shaw38774Shelby38776Stoneville38778Sunflower38781Winstonville38782Winterville38801Tupelo38802Tupelo38803Tupelo38804Tupelo38820Algoma38821Amory38824Baldwyn38825Becker38826Belden38827Belmont38828Blue Springs38829Booneville38833Burnsville38834Corinth38835Corinth38838Dennis38841Ecru38843Fulton38844Gattman38846Glen38847Golden38848Greenwood Springs38849Guntown38850Houlka38851Houston38852Iuka38855Mantachie38856Marietta38857Mooreville38858Nettleton38859New Site38860Okolona38862Plantersville38863Pontotoc38864Randolph38865Rienzi38866Saltillo38868Shannon38869Sherman38870Smithville38871Thaxton38873Tishomingo38874Toccopola38875Trebloc38876Tremont38877Van Vleet38878Vardaman38880Wheeler38901Grenada38902Grenada38913Banner38914Big Creek38915Bruce38916Calhoun City38917Carrollton38920Cascilla38921Charleston38922Coffeeville38923Coila38924Cruger38925Duck Hill38926Elliott38927Enid38928Glendora38929Gore Springs38930Greenwood38935Greenwood38940Holcomb38941Itta Bena38943Mc Carley38944Minter City38945Money38946Morgan City38947North Carrollton38948Oakland38949Paris38950Philipp38951Pittsboro38952Schlater38953Scobey38954Sidon38955Slate Spring38957Sumner38958Swan Lake38959Swiftown38960Tie Plant38961Tillatoba38962Tippo38963Tutwiler38964Vance38965Water Valley38966Webb38967Winona39038Belzoni39039Benton39040Bentonia39041Bolton39042Brandon39043Brandon39044Braxton39045Camden39046Canton39047Brandon39051Carthage39054Cary39056Clinton39057Conehatta39059Crystal Springs39060Clinton39061Delta City39062D Lo39063Durant39066Edwards39067Ethel39069Fayette39071Flora39073Florence39074Forest39077Gallman39078Georgetown39079Goodman39080Harperville39081Harriston39082Harrisville39083Hazlehurst39086Hermanville39087Hillsboro39088Holly Bluff39090Kosciusko39092Lake39094Lena39095Lexington39096Lorman39097Louise39098Ludlow39107Mc Adams39108Mc Cool39109Madden39110Madison39111Magee39113Mayersville39114Mendenhall39115Midnight39116Mize39117Morton39119Mount Olive39120Natchez39121Natchez39122Natchez39130Madison39140Newhebron39144Pattison39145Pelahatchie39146Pickens39148Piney Woods39149Pinola39150Port Gibson39151Puckett39152Pulaski39153Raleigh39154Raymond39156Redwood39157Ridgeland39158Ridgeland39159Rolling Fork39160Sallis39161Sandhill39162Satartia39163Sharon39165Sibley39166Silver City39167Star39168Taylorsville39169Tchula39170Terry39171Thomastown39173Tinsley39174Tougaloo39175Utica39176Vaiden39177Valley Park39179Vaughan39180Vicksburg39181Vicksburg39182Vicksburg39183Vicksburg39189Walnut Grove39190Washington39191Wesson39192West39193Whitfield39194Yazoo City39201Jackson39202Jackson39203Jackson39204Jackson39205Jackson39206Jackson39207Jackson39208Pearl39209Jackson39211Jackson39212Jackson39213Jackson39215Jackson39216Jackson39217Jackson39218Richland39225Jackson39232Flowood39236Jackson39250Jackson39269Jackson39271Jackson39272Byram39282Jackson39283Jackson39284Jackson39286Jackson39288Pearl39289Jackson39296Jackson39298Jackson39301Meridian39302Meridian39303Meridian39304Meridian39305Meridian39307Meridian39309Meridian39320Bailey39322Buckatunna39323Chunky39324Clara39325Collinsville39326Daleville39327Decatur39328De Kalb39330Enterprise39332Hickory39335Lauderdale39336Lawrence39337Little Rock39338Louin39339Louisville39341Macon39342Marion39345Newton39346Noxapater39347Pachuta39348Paulding39350Philadelphia39352Porterville39354Preston39355Quitman39356Rose Hill39358Scooba39359Sebastopol39360Shubuta39361Shuqualak39362State Line39363Stonewall39364Toomsuba39365Union39366Vossburg39367Waynesboro39401Hattiesburg39402Hattiesburg39403Hattiesburg39404Hattiesburg39406Hattiesburg39407Hattiesburg39421Bassfield39422Bay Springs39423Beaumont39425Brooklyn39426Carriere39427Carson39428Collins39429Columbia39436Eastabuchie39437Ellisville39439Heidelberg39440Laurel39441Laurel39442Laurel39443Laurel39451Leakesville39452Lucedale39455Lumberton39456Mc Lain39457Mc Neill39459Moselle39460Moss39461Neely39462New Augusta39463Nicholson39464Ovett39465Petal39466Picayune39470Poplarville39474Prentiss39475Purvis39476Richton39477Sandersville39478Sandy Hook39479Seminary39480Soso39481Stringer39482Sumrall39483Foxworth39501Gulfport39502Gulfport39503Gulfport39505Gulfport39506Gulfport39507Gulfport39520Bay Saint Louis39521Bay Saint Louis39522Stennis Space Center39525Diamondhead39529Stennis Space Center39530Biloxi39531Biloxi39532Biloxi39533Biloxi39534Biloxi39535Biloxi39540Diberville39552Escatawpa39553Gautier39555Hurley39556Kiln39558Lakeshore39560Long Beach39561Mc Henry39562Moss Point39563Moss Point39564Ocean Springs39565Vancleave39566Ocean Springs39567Pascagoula39568Pascagoula39569Pascagoula39571Pass Christian39572Pearlington39573Perkinston39574Saucier39576Waveland39577Wiggins39581Pascagoula39595Pascagoula39601Brookhaven39602Brookhaven39603Brookhaven39629Bogue Chitto39630Bude39631Centreville39632Chatawa39633Crosby39635Fernwood39638Gloster39641Jayess39643Kokomo39645Liberty39647Mc Call Creek39648Mccomb39649Mccomb39652Magnolia39653Meadville39654Monticello39656Oak Vale39657Osyka39661Roxie39662Ruth39663Silver Creek39664Smithdale39665Sontag39666Summit39667Tylertown39668Union Church39669Woodville39701Columbus39702Columbus39703Columbus39704Columbus39705Columbus39730Aberdeen39735Ackerman39736Artesia39737Bellefontaine39739Brooksville39740Caledonia39741Cedarbluff39743Crawford39744Eupora39745French Camp39746Hamilton39747Kilmichael39750Maben39751Mantee39752Mathiston39753Mayhew39754Montpelier39755Pheba39756Prairie39759Starkville39760Starkville39762Mississippi State39766Steens39767Stewart39769Sturgis39771Walthall39772Weir39773West Point39776Woodland
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions
How many water systems in Mississippi have violations?
297 of 988 active community water systems in Mississippi reported at least one health-based violation since 2016 (EPA SDWIS).
What is the radon risk in Mississippi?
No ZIP codes are in EPA radon zone 1, 47 in zone 2 and 477 in zone 3. EPA recommends testing every home.