State system profile

PFAS in Mississippi drinking water

Active community water systems with complete EPA UCMR 5 monitoring, summarized using yearly averages from results available through January 15, 2026.

Source EPA UCMR 5 Period 2023–2025 Systems included 209 Release ucmr5-2026-01-15-analysis-v0.2
Systems with a yearly average at or above an EPA-based study benchmark
1.9%4 of 209 active community water systems

All 209 systems had enough required samples to calculate a yearly average. 4 had at least one yearly average at or above a study benchmark; 205 did not.

EPA-based study benchmark: the unrounded cutoff this research uses to reproduce EPA’s January 2026 technical-assistance classification around the April 2024 federal levels. It is not a current standard or compliance finding and cannot determine household exposure or health risk.

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ZIP codes are used only to route visitors to public water systems that reported serving them. Confirm the actual provider using a water bill or utility record.

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Compound summary

System counts in Mississippi

Each count shows how many included water systems had a yearly average at or above the named study benchmark.

Community water systems with yearly averages at or above the EPA-based study benchmarks used in the January 2026 research release for Mississippi.
Study benchmarkSystems at or above benchmarkWater systems includedPercent
PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)42091.9%
PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)32091.4%
PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02090.0%
PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02090.0%
HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02090.0%
Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1)02090.0%
System directory

Community water systems with complete monitoring

“Complete monitoring” means at least one sampling location had all required samples needed for a yearly average. Each PWSID appears once, preventing double counting across ZIP associations.

Active community water systems with complete UCMR 5 monitoring in Mississippi.
Public water systemPWSIDPopulation servedPrimary sourceSampling locationsStudy benchmark result
ADAMS CO W/A #2-SOUTHMS00100098,097Ground water5Below all study benchmarks
ADAMS CO W/A #4-KAISER LAKEMS00100158,078Ground water4Below all study benchmarks
ALCORN STATE UNIVERSITYMS01100133,000Ground water1Below all study benchmarks
ALCORN W/A #1-INDIAN SPRINGSMS00200065,456Ground water2Below all study benchmarks
ALGOMA WATER ASSOCIATIONMS05800016,879Ground water5Below all study benchmarks
ARNOLD LINE WATER ASSOCIATIONMS03700016,600Ground water3Below all study benchmarks
BARRONTOWN W/AMS01800017,999Ground water6Below all study benchmarks
BEAR CREEK W/A -EASTMS045000218,770Ground water4Below all study benchmarks
BEAR CREEK W/A-WESTMS045002126,677Ground water5Below all study benchmarks
BEAT III W/A #1-SAND HILLMS02100013,881Ground water2Below all study benchmarks
BIG V WATER ASSOCIATIONMS05900023,878Ground water3Below all study benchmarks
BOONEVILLE WATER DEPT.MS05900049,995Ground water3Below all study benchmarks
BROADMOOR UTILITIES, INCMS00100051,185Ground water1Below all study benchmarks
CALHOUN WATER ASSOCIATIONMS03400013,730Ground water2Below all study benchmarks
CASON WATER ASSOCIATIONMS04800194,570Surface water purchased1Below all study benchmarks
CENTRAL W/A-EAST SIDEMS05000046,442Ground water1Below all study benchmarks
CENTRAL W/A-SOUTHWESTMS05000095,312Ground water3Below all study benchmarks
CITY OF AMORYMS04800029,350Ground water1Below all study benchmarks
CITY OF BATESVILLEMS05400027,463Ground water7Below all study benchmarks
CITY OF BAY ST LOUISMS02300019,284Ground water4Below all study benchmarks
CITY OF BELZONIMS02700014,768Ground water3Below all study benchmarks
CITY OF BILOXIMS024000123,310Ground water12Below all study benchmarks
CITY OF BILOXI-FRENCHMS02400364,968Ground water3Below all study benchmarks
CITY OF BILOXI-NORTHMS02400849,858Ground water6Below all study benchmarks
CITY OF BRANDONMS061000331,852Ground water9Below all study benchmarks
CITY OF BROOKHAVENMS043000212,513Ground water4Below all study benchmarks
CITY OF CANTON, MSMS045000616,785Ground water2Below all study benchmarks
CITY OF CLEVELAND, MSMS006000616,392Ground water4Below all study benchmarks
CITY OF CLINTONMS025000325,000Ground water11Below all study benchmarks
CITY OF COLUMBIAMS04600035,900Ground water1Below all study benchmarks
CITY OF CORINTH, MSMS002000215,000Surface water6At or above a study benchmark
CITY OF ELLISVILLEMS03400034,600Ground water4Below all study benchmarks
CITY OF EUPORAMS07800055,586Ground water1Below all study benchmarks
CITY OF FLOWOODMS061007531,574Ground water8Below all study benchmarks
CITY OF FLOWOOD - NORANCOMS06100444,274Ground water2Below all study benchmarks
CITY OF FORESTMS06200025,430Ground water6Below all study benchmarks
CITY OF GAUTIERMS030000422,253Ground water9Below all study benchmarks
CITY OF GREENVILLE, MSMS076000429,602Ground water8Below all study benchmarks
CITY OF GREENWOODMS042000119,140Ground water7Below all study benchmarks
CITY OF GRENADAMS022000312,762Ground water3Below all study benchmarks
CITY OF GULFPORTMS024000375,056Ground water21Below all study benchmarks
CITY OF HATTIESBURGMS018000843,449Ground water6Below all study benchmarks
CITY OF HERNANDOMS017000914,457Ground water1Below all study benchmarks
CITY OF HERNANDO-JAYBIRDMS01700026,750Ground water1Below all study benchmarks
CITY OF HOLLY SPRINGSMS04700029,779Ground water2At or above a study benchmark
CITY OF HORN LAKEMS017002213,649Ground water4Below all study benchmarks
CITY OF HOUSTONMS00900053,772Ground water3Below all study benchmarks
CITY OF INDIANOLAMS06700069,464Ground water3Below all study benchmarks
CITY OF IUKAMS07100067,268Ground water1Below all study benchmarks
CITY OF JACKSON, MSMS0250008189,673Surface water3Below all study benchmarks
CITY OF JACKSON-MADDOX RD.MS025001228,098Ground water6Below all study benchmarks
CITY OF LAURELMS034002118,100Ground water5Below all study benchmarks
CITY OF LELANDMS07600064,591Ground water2Below all study benchmarks
CITY OF LONG BEACHMS024000518,514Ground water7Below all study benchmarks
CITY OF LOUISVILLEMS08000047,545Ground water1Below all study benchmarks
CITY OF LOUISVILLE - NORTHEASTMS0800005780Ground water1Below all study benchmarks
CITY OF MADISONMS045001016,136Ground water4Below all study benchmarks
CITY OF MCCOMBMS057000412,041Ground water1Below all study benchmarks
CITY OF MERIDIANMS038000534,466Ground water2Below all study benchmarks
CITY OF MORTONMS06200093,400Ground water4Below all study benchmarks
CITY OF MOSS POINTMS030000812,524Ground water1Below all study benchmarks
CITY OF NATCHEZMS001000214,520Ground water1Below all study benchmarks
CITY OF NEW ALBANYMS07300068,900Ground water8Below all study benchmarks
CITY OF NEWTONMS05100093,373Ground water1Below all study benchmarks
CITY OF OCEAN SPRINGSMS030000526,168Ground water5Below all study benchmarks
CITY OF OLIVE BRANCHMS017001554,025Ground water6Below all study benchmarks
CITY OF OXFORDMS036001128,500Ground water5At or above a study benchmark
CITY OF PASCAGOULAMS030000622,686Ground water3Below all study benchmarks
CITY OF PASS CHRISTIANMS024000910,436Ground water5Below all study benchmarks
CITY OF PEARLMS061001727,115Ground water10Below all study benchmarks
CITY OF PETALMS01800119,509Ground water3Below all study benchmarks
CITY OF PHILADELPHIAMS05000086,921Ground water1Below all study benchmarks
CITY OF PONTOTOCMS05800069,398Ground water6Below all study benchmarks
CITY OF POPLARVILLEMS05500063,334Ground water2Below all study benchmarks
CITY OF RICHLANDMS06100237,000Ground water6Below all study benchmarks
CITY OF RIPLEYMS070000811,351Ground water8Below all study benchmarks
CITY OF SARDISMS05400183,439Ground water2Below all study benchmarks
CITY OF SENATOBIAMS06900058,354Ground water4Below all study benchmarks
CITY OF SOUTHAVENMS017001856,000Ground water4Below all study benchmarks
CITY OF STARKVILLEMS053002032,027Ground water4Below all study benchmarks
CITY OF TUPELOMS041001537,000Surface water purchased1Below all study benchmarks
CITY OF VICKSBURGMS075001029,238Ground water1Below all study benchmarks
CITY OF WATER VALLEYMS08100113,380Ground water3Below all study benchmarks
CITY OF WAVELANDMS02300026,400Ground water4Below all study benchmarks
CITY OF WAYNESBOROMS07700034,570Ground water2Below all study benchmarks
CITY OF WEST POINTMS013000815,062Ground water5Below all study benchmarks
CITY OF WIGGINSMS06600054,300Ground water4Below all study benchmarks
CITY OF WINONAMS04900105,071Ground water1Below all study benchmarks
CITY OF YAZOO CITYMS08200149,913Ground water5Below all study benchmarks
CLARKDALE WATER ASSN # 1MS03800014,500Ground water4Below all study benchmarks
CLARKSDALE PUBLIC UTILITIESMS014000214,903Ground water7Below all study benchmarks
CLAYTON VILLAGE W/A #1-EASTMS05300064,984Ground water3Below all study benchmarks
CMU - LAKE CAROLINEMS04500348,511Ground water3Below all study benchmarks
COLUMBUS LIGHT & WATERMS044000323,616Ground water2Below all study benchmarks
COMBINED UTILITIESMS02000016,658Ground water3Below all study benchmarks
COPIAH-NEW ZION WATER ASSN,INCMS01500093,791Ground water4Below all study benchmarks
CRYSTAL SPRINGS WATER SERVICEMS01500035,961Ground water1Below all study benchmarks
CULKIN WATER DISTMS075000211,730Ground water1Below all study benchmarks
DIAMONDHEAD UTILITIES-NORTHMS023000512,577Ground water4Below all study benchmarks
DIBERVILLE W/SMS024000212,721Ground water3Below all study benchmarks
DIXIE COMMUNITY UTILITY ASSN.MS01800055,840Ground water3Below all study benchmarks
EAST LEFLORE WATER & SEWER DSTMS04200105,206Ground water3Below all study benchmarks
EAST LOWNDES #4-HERMAN-VAUGHNMS04401005,678Ground water1Below all study benchmarks
EAST LOWNDES W/A #2-HUCKLEBERRYMS04400807,035Ground water1Below all study benchmarks
EAST LOWNDES W/A A EAST-OLD YORKVILLEMS04400814,778Ground water1Below all study benchmarks
EAST LOWNDES W/A B WEST-OLD YORKVILLE RDMS04401037,355Ground water1Below all study benchmarks
EAST MADISON WATER ASSN-WESTMS04500077,339Ground water5Below all study benchmarks
EAST PONTOTOC WATER ASSNMS05800025,170Ground water4Below all study benchmarks
EAST QUITMAN W/AMS01200113,546Ground water4Below all study benchmarks
EUDORA UTILITIES ASSOCIATIONMS01700063,749Ground water1Below all study benchmarks
FANNIN WATER ASSN-NORTHMS06100087,690Ground water5Below all study benchmarks
FARMINGTON WATER ASSOCIATIONMS00200036,925Ground water2Below all study benchmarks
FISHER FERRY WATER DISTRICTMS07500045,094Ground water1Below all study benchmarks
G T & Y WATER DISTRICT INCMS02200023,907Ground water4Below all study benchmarks
GLADE WATERWORKS ASSNMS03400053,340Ground water3Below all study benchmarks
GLENDALE UTILITY DISTRICTMS01800074,477Ground water3Below all study benchmarks
GREENFIELD WATER ASSOCIATIONMS06100116,088Ground water3Below all study benchmarks
GULF PARKMS03000444,813Ground water6Below all study benchmarks
HAMILTON WATER DISTRICTMS04800074,029Ground water2Below all study benchmarks
HARMONTOWN WATER ASSOCIATIONMS03600071,393Ground water2Below all study benchmarks
HEBRON WATER ASSOCIATIONMS05400081,146Ground water3Below all study benchmarks
HILLDALE WATER DISTRICTMS07500055,578Ground water2Below all study benchmarks
HORN LAKE WATER ASSOCIATIONMS017001012,735Ground water2Below all study benchmarks
HUB WATER ASSOCIATIONMS04600083,260Ground water2Below all study benchmarks
HUMPHREYS CO. W/A #1-MIDNIGHTMS0270018544Ground water2Below all study benchmarks
J P UTILITY DISTRICTMS03400073,839Ground water5Below all study benchmarks
JACKSON CO UTILITY AUTHORITY-EASTMS03001666,270Ground water2Below all study benchmarks
JACKSON CO UTILITY AUTHORITY-WESTMS03001646,178Ground water4Below all study benchmarks
JAYESS-TOPEKA-TILTON W/AMS03900013,450Ground water1Below all study benchmarks
KEESLER AIR FORCE BASEMS02400498,006Ground water7Below all study benchmarks
KILN UTILITY AND FIRE DISTRICT OF HANCOCMS02300507,051Ground water purchased1Below all study benchmarks
KOSSUTH W/A #3-PINE MOUNTAINMS00200075,830Ground water5Below all study benchmarks
LAMAR PARK WATER & SEWAGE ASSNMS03700047,714Ground water4Below all study benchmarks
LAMPTON WATER ASSOCIATIONMS04600091,983Ground water1Below all study benchmarks
LANGFORD WATER ASSOCIATIONMS06100124,013Ground water4Below all study benchmarks
LEESBURG WATER ASSOCIATIONMS06100133,836Ground water3Below all study benchmarks
LEWISBURG WATER ASSOCIATIONMS01700119,390Ground water2Below all study benchmarks
LEXIE WATER ASSOCIATION, INC.MS07400044,290Ground water1Below all study benchmarks
LINCOLN RURAL W/A-HEUCKS RETMS04300303,778Ground water2Below all study benchmarks
LONG CREEK WATER ASSN #2MS03801063,977Ground water3Below all study benchmarks
MACON ELECTRIC & WATER DEPT.MS05200045,174Ground water4Below all study benchmarks
MAGEES CREEK W/A-NORTHMS07400769,792Ground water3Below all study benchmarks
MARSHALL CO WATER ASSNMS04701055,599Ground water2Below all study benchmarks
MCNAIR-STAMPLEY W/A #1MS03200031,148Ground water1Below all study benchmarks
MOOREVILLE-RICHMOND W/A #1MS04100073,807Ground water6Below all study benchmarks
MS STATE UNIVERSITYMS053001215,000Ground water4Below all study benchmarks
MT GILEAD-IMPROVE WATER ASSNMS04600122,416Ground water1Below all study benchmarks
NAVAL CONSTRUCTION BATTAL CTRMS02400603,347Ground water3Below all study benchmarks
NE ITAWAMBA W/A #1-RIDGEMS02900162,537Ground water1Below all study benchmarks
NESBIT WATER ASSOCIATIONMS01700145,988Ground water1Below all study benchmarks
NORTH HINDS W/A #1-BROWNSVILLEMS02500154,277Ground water3Below all study benchmarks
NORTH LAMAR WATER ASSOCIATIONMS037000612,778Ground water4Below all study benchmarks
NORTH LAUDERDALE W/A, INCMS038000610,544Ground water4Below all study benchmarks
NORTH LEE W/A-AUBURN SYSTEM #1MS04100011,088Ground water3Below all study benchmarks
NORTH LUMBERTON UTILITY ASSNMS03700074,071Ground water3Below all study benchmarks
NORTH PIKE WATER ASSOCIATIONMS05700085,359Ground water2Below all study benchmarks
NORTH TALLAHATCHIE W/AMS06800073,089Ground water2Below all study benchmarks
NTS UTILITY ASSOCIATIONMS03800285,103Ground water2Below all study benchmarks
OAK HILL WATER ASSNMS05800044,739Ground water4Below all study benchmarks
OKATOMA WATER ASSOCIATION #2MS06400225,866Ground water5Below all study benchmarks
PALMER CREEK UTILITY ASSC, INCMS0240247570Ground water1Below all study benchmarks
PEARL RIVER CENTRAL W/AMS055000511,830Ground water4Below all study benchmarks
PEARL RIVER CENTRAL W/A-BI COMS05500584,406Ground water2Below all study benchmarks
PICAYUNE UTILITIES, CITY OFMS055000411,859Ground water3Below all study benchmarks
PLEASANT GROVE WATER ASSNMS0540016747Ground water purchased1Below all study benchmarks
PLEASANT RIDGE W/AMS03400145,808Ground water3Below all study benchmarks
PROGRESS COMM WATER ASSNMS03700087,017Ground water3Below all study benchmarks
PRVWSD-PELAHATCHIE BAYMS061003611,790Ground water3Below all study benchmarks
QUINCY WATER ASSOCIATION #1MS04800113,519Ground water1Below all study benchmarks
RANDOLPH WATER ASSOCIATION #1MS05800071,299Ground water3Below all study benchmarks
REEDTOWN WATER ASSNMS02500213,260Ground water4Below all study benchmarks
S MS PUBLIC WATER AUTH-ROCK HILLMS0180022803Ground water1Below all study benchmarks
SEBASTOPOL WATER ASSOCIATIONMS06200106,207Ground water5Below all study benchmarks
SOUTH CENTRAL WATER ASSNMS025002212,260Ground water2Below all study benchmarks
SOUTHERN RANKIN W/A #2 PLAINMS06100243,810Ground water2Below all study benchmarks
SOUTHWEST COVINGTON W/AMS01600093,601Ground water2Below all study benchmarks
SOUTHWEST JONES W/A-NORTHMS03400196,690Ground water4Below all study benchmarks
STANDARD DEDEAUX WATER ASSOCIATIONMS02300635,386Ground water3Below all study benchmarks
STENNIS SPACE CENTERMS02300154,700Ground water4Below all study benchmarks
STRAYHORN W/A-CROCKETTMS06900062,801Ground water4Below all study benchmarks
STRINGER WATER WORKSMS03100123,556Ground water4Below all study benchmarks
SUNNYHILL WATER ASSOCIATIONMS05700143,833Ground water3Below all study benchmarks
SUNRISE UTILITY ASSN INCMS01800136,067Ground water3Below all study benchmarks
SW RANKIN WATER ASSOCIATION #1MS06100263,128Ground water2Below all study benchmarks
TALLAHALA W/A-ANTIOCHMS03100013,427Ground water6Below all study benchmarks
TOOMSUBA WATER ASSOCIATIONMS03800093,828Ground water3Below all study benchmarks
TOPISAW CREEKMS04300295,349Ground water3Below all study benchmarks
TOWN OF ABERDEENMS04800017,783Ground water11Below all study benchmarks
TOWN OF BAY SPRINGSMS03100022,925Ground water5Below all study benchmarks
TOWN OF CALEDONIAMS04400026,589Ground water2Below all study benchmarks
TOWN OF DUNCANMS0060008341Ground water2Below all study benchmarks
TOWN OF FLORENCEMS06100095,824Ground water3Below all study benchmarks
TOWN OF GUNTOWNMS04100063,577Ground water3Below all study benchmarks
TOWN OF PLANTERSVILLEMS04100111,845Ground water3Below all study benchmarks
TOWN OF PORT GIBSONMS01100053,047Ground water1Below all study benchmarks
TOWN OF RENOVAMS00600151,357Ground water1Below all study benchmarks
TOWN OF SALTILLOMS04100126,766Surface water purchased1Below all study benchmarks
TOWN OF TUNICAMS07200044,689Ground water3Below all study benchmarks
TOWN OF TUTWILERMS06800101,040Ground water3Below all study benchmarks
TOWN OF WALNUTMS07000111,449Ground water2Below all study benchmarks
TUNICA COUNTY UTILITY DISTRICTMS07200246,690Ground water8Below all study benchmarks
UNION CHURCH WATERWORKS ASSNMS03200041,456Ground water1Below all study benchmarks
UNIVERSITY OF MISSISSIPPIMS036001526,874Ground water3At or above a study benchmark
WALLERVILLE WATER ASSOCIATIONMS07300092,886Ground water3Below all study benchmarks
WALLS WATER ASSN- LAKE FORESTMS01700439,298Ground water1Below all study benchmarks
WEST JACKSON CO UTILITY DISTMS030015628,544Ground water14Below all study benchmarks
WEST LAMAR WATER ASSN #1MS037001118,491Ground water6Below all study benchmarks
WHEELER-FRANKSTOWN WATER ASSNMS05900144,203Ground water5Below all study benchmarks
WHISTLER WATER ASSOCIATIONMS07700044,116Ground water3Below all study benchmarks
How the count works

What is included

Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. This does not mean every home was tested. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Mississippi's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.

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Related links

PFAS Estimator system lookupNational state comparison tableFull methodology and limitationsCurrent EPA UCMR 5 Data FinderOfficial state and territory drinking-water programs