Systems with a yearly average above an EPA comparison level
2.2%5 of 231 active community water systems
All 231 systems met the sampling requirement for a yearly average. Of those systems, 5 had at least one yearly average above an EPA comparison level and 226 did not.
EPA-based study benchmark: a fixed, unrounded research cutoff used to reproduce EPA’s final UCMR 5 technical-assistance classification based on the April 2024 federal levels. It is not a current federal or state standard. The label does not determine compliance, household exposure, or health risk.
State rules: The labels on this page use fixed research cutoffs based on the April 2024 federal levels. Mississippi may use different current standards or guidance. These UCMR 5 results do not determine current federal or state compliance. Find the official Mississippi drinking-water program →
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A ZIP code finds possible public water systems for an area; it cannot identify the supplier for a specific home. Confirm the provider using a water bill or utility record.
Compound summary
System counts in Mississippi
Each count shows how many included water systems had a yearly average above the named EPA comparison level.
| EPA rounding cutoff | Systems above comparison level | Water systems included | Percent |
|---|---|---|---|
| PFOA: 4 ppt level; unrounded average ≥4.05 ppt after applying EPA rounding | 4 | 231 | 1.7% |
| PFOS: 4 ppt level; unrounded average ≥4.05 ppt after applying EPA rounding | 4 | 231 | 1.7% |
| PFHxS: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 231 | 0.0% |
| PFNA: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 231 | 0.0% |
| HFPO-DA: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 231 | 0.0% |
| Hazard Index: 1 level; unrounded index ≥1.5 and at least two detected components | 0 | 231 | 0.0% |
System directory
Community water systems with complete monitoring
“Complete monitoring” means at least one sampling location had every required sample needed to calculate a yearly average. It does not mean every location or home was tested. Each PWSID appears once, preventing double counting across ZIP associations.
| Public water system | PWSID | Population served | Primary source | Sampling locations | EPA comparison result |
|---|---|---|---|---|---|
| ADAMS CO W/A #2-SOUTH | MS0010009 | 8,097 | Ground water | 5 | No available average above comparison levels |
| ADAMS CO W/A #4-KAISER LAKE | MS0010015 | 8,078 | Ground water | 4 | No available average above comparison levels |
| ALCORN STATE UNIVERSITY | MS0110013 | 3,000 | Ground water | 1 | No available average above comparison levels |
| ALCORN W/A #1-INDIAN SPRINGS | MS0020006 | 5,456 | Ground water | 2 | No available average above comparison levels |
| ALGOMA WATER ASSOCIATION | MS0580001 | 6,879 | Ground water | 5 | No available average above comparison levels |
| ARNOLD LINE WATER ASSOCIATION | MS0370001 | 6,600 | Ground water | 3 | No available average above comparison levels |
| BARRONTOWN W/A | MS0180001 | 7,999 | Ground water | 6 | No available average above comparison levels |
| BEAR CREEK W/A -EAST | MS0450002 | 18,770 | Ground water | 4 | No available average above comparison levels |
| BEAR CREEK W/A-WEST | MS0450021 | 26,677 | Ground water | 5 | No available average above comparison levels |
| BEAT III W/A #1-SAND HILL | MS0210001 | 3,881 | Ground water | 2 | No available average above comparison levels |
| BEAVERDAM W/A-NORTH | MS0310003 | 1,800 | Ground water | 2 | No available average above comparison levels |
| BIG V WATER ASSOCIATION | MS0590002 | 3,878 | Ground water | 3 | No available average above comparison levels |
| BLACK BAYOU WATER ASSN. | MS0760076 | 6,917 | Ground water | 3 | No available average above comparison levels |
| BOONEVILLE WATER DEPT. | MS0590004 | 9,995 | Ground water | 3 | No available average above comparison levels |
| BROADMOOR UTILITIES, INC | MS0010005 | 1,185 | Ground water | 1 | No available average above comparison levels |
| BUCKATUNNA WATER ASSOCIATION | MS0770001 | 4,913 | Ground water | 6 | No available average above comparison levels |
| CALHOUN WATER ASSOCIATION | MS0340001 | 3,730 | Ground water | 2 | No available average above comparison levels |
| CASON WATER ASSOCIATION | MS0480019 | 4,570 | Surface water purchased | 1 | No available average above comparison levels |
| CENTER W/A-CAESAR SYSTEM | MS0550001 | 6,455 | Ground water | 4 | No available average above comparison levels |
| CENTRAL W/A-EAST SIDE | MS0500004 | 6,442 | Ground water | 1 | No available average above comparison levels |
| CENTRAL W/A-SOUTHWEST | MS0500009 | 5,312 | Ground water | 3 | No available average above comparison levels |
| CITY OF AMORY | MS0480002 | 9,350 | Ground water | 1 | No available average above comparison levels |
| CITY OF BATESVILLE | MS0540002 | 7,463 | Ground water | 7 | No available average above comparison levels |
| CITY OF BAY ST LOUIS | MS0230001 | 9,284 | Ground water | 4 | No available average above comparison levels |
| CITY OF BELZONI | MS0270001 | 4,768 | Ground water | 3 | No available average above comparison levels |
| CITY OF BILOXI | MS0240001 | 23,310 | Ground water | 12 | No available average above comparison levels |
| CITY OF BILOXI-FRENCH | MS0240036 | 4,968 | Ground water | 3 | No available average above comparison levels |
| CITY OF BILOXI-NORTH | MS0240084 | 9,858 | Ground water | 6 | No available average above comparison levels |
| CITY OF BRANDON | MS0610003 | 31,852 | Ground water | 9 | No available average above comparison levels |
| CITY OF BROOKHAVEN | MS0430002 | 12,513 | Ground water | 4 | No available average above comparison levels |
| CITY OF CANTON, MS | MS0450006 | 16,785 | Ground water | 2 | No available average above comparison levels |
| CITY OF CARTHAGE | MS0400001 | 4,901 | Ground water | 3 | No available average above comparison levels |
| CITY OF CLEVELAND, MS | MS0060006 | 16,392 | Ground water | 4 | No available average above comparison levels |
| CITY OF CLINTON | MS0250003 | 25,000 | Ground water | 11 | No available average above comparison levels |
| CITY OF COLUMBIA | MS0460003 | 5,900 | Ground water | 1 | No available average above comparison levels |
| CITY OF CORINTH, MS | MS0020002 | 15,000 | Surface water | 6 | Above an EPA comparison level |
| CITY OF ELLISVILLE | MS0340003 | 4,600 | Ground water | 4 | No available average above comparison levels |
| CITY OF EUPORA | MS0780005 | 5,586 | Ground water | 1 | No available average above comparison levels |
| CITY OF FLOWOOD | MS0610075 | 31,574 | Ground water | 8 | No available average above comparison levels |
| CITY OF FLOWOOD - NORANCO | MS0610044 | 4,274 | Ground water | 2 | No available average above comparison levels |
| CITY OF FOREST | MS0620002 | 5,430 | Ground water | 6 | No available average above comparison levels |
| CITY OF FULTON | MS0290003 | 9,929 | Surface water purchased | 1 | No available average above comparison levels |
| CITY OF GAUTIER | MS0300004 | 22,253 | Ground water | 9 | No available average above comparison levels |
| CITY OF GREENVILLE, MS | MS0760004 | 29,602 | Ground water | 8 | No available average above comparison levels |
| CITY OF GREENWOOD | MS0420001 | 19,140 | Ground water | 7 | No available average above comparison levels |
| CITY OF GRENADA | MS0220003 | 12,762 | Ground water | 3 | No available average above comparison levels |
| CITY OF GULFPORT | MS0240003 | 75,056 | Ground water | 21 | No available average above comparison levels |
| CITY OF HATTIESBURG | MS0180008 | 43,449 | Ground water | 6 | No available average above comparison levels |
| CITY OF HERNANDO | MS0170009 | 14,457 | Ground water | 1 | No available average above comparison levels |
| CITY OF HERNANDO-JAYBIRD | MS0170002 | 6,750 | Ground water | 1 | No available average above comparison levels |
| CITY OF HOLLY SPRINGS | MS0470002 | 9,779 | Ground water | 2 | Above an EPA comparison level |
| CITY OF HORN LAKE | MS0170022 | 13,649 | Ground water | 4 | No available average above comparison levels |
| CITY OF HOUSTON | MS0090005 | 3,772 | Ground water | 3 | No available average above comparison levels |
| CITY OF INDIANOLA | MS0670006 | 9,464 | Ground water | 3 | No available average above comparison levels |
| CITY OF IUKA | MS0710006 | 7,268 | Ground water | 1 | No available average above comparison levels |
| CITY OF JACKSON, MS | MS0250008 | 189,673 | Surface water | 3 | No available average above comparison levels |
| CITY OF JACKSON-MADDOX RD. | MS0250012 | 28,098 | Ground water | 6 | No available average above comparison levels |
| CITY OF KOSCIUSKO | MS0040004 | 9,646 | Ground water | 3 | No available average above comparison levels |
| CITY OF LAUREL | MS0340021 | 18,100 | Ground water | 5 | No available average above comparison levels |
| CITY OF LELAND | MS0760006 | 4,591 | Ground water | 2 | No available average above comparison levels |
| CITY OF LONG BEACH | MS0240005 | 18,514 | Ground water | 7 | No available average above comparison levels |
| CITY OF LOUISVILLE | MS0800004 | 7,545 | Ground water | 1 | No available average above comparison levels |
| CITY OF LOUISVILLE - NORTHEAST | MS0800005 | 780 | Ground water | 1 | No available average above comparison levels |
| CITY OF MADISON | MS0450010 | 16,136 | Ground water | 4 | No available average above comparison levels |
| CITY OF MAGEE | MS0640006 | 3,526 | Ground water | 2 | No available average above comparison levels |
| CITY OF MCCOMB | MS0570004 | 12,041 | Ground water | 1 | No available average above comparison levels |
| CITY OF MERIDIAN | MS0380005 | 34,466 | Ground water | 2 | No available average above comparison levels |
| CITY OF MORTON | MS0620009 | 3,400 | Ground water | 4 | No available average above comparison levels |
| CITY OF MOSS POINT | MS0300008 | 12,524 | Ground water | 1 | No available average above comparison levels |
| CITY OF NATCHEZ | MS0010002 | 14,520 | Ground water | 1 | No available average above comparison levels |
| CITY OF NEW ALBANY | MS0730006 | 8,900 | Ground water | 8 | No available average above comparison levels |
| CITY OF NEWTON | MS0510009 | 3,373 | Ground water | 1 | No available average above comparison levels |
| CITY OF OCEAN SPRINGS | MS0300005 | 26,168 | Ground water | 5 | No available average above comparison levels |
| CITY OF OLIVE BRANCH | MS0170015 | 54,025 | Ground water | 6 | No available average above comparison levels |
| CITY OF OXFORD | MS0360011 | 28,500 | Ground water | 5 | Above an EPA comparison level |
| CITY OF PASCAGOULA | MS0300006 | 22,686 | Ground water | 3 | No available average above comparison levels |
| CITY OF PASS CHRISTIAN | MS0240009 | 10,436 | Ground water | 5 | No available average above comparison levels |
| CITY OF PEARL | MS0610017 | 27,115 | Ground water | 10 | No available average above comparison levels |
| CITY OF PETAL | MS0180011 | 9,509 | Ground water | 3 | No available average above comparison levels |
| CITY OF PHILADELPHIA | MS0500008 | 6,921 | Ground water | 1 | No available average above comparison levels |
| CITY OF PONTOTOC | MS0580006 | 9,398 | Ground water | 6 | No available average above comparison levels |
| CITY OF POPLARVILLE | MS0550006 | 3,334 | Ground water | 2 | No available average above comparison levels |
| CITY OF RICHLAND | MS0610023 | 7,000 | Ground water | 6 | No available average above comparison levels |
| CITY OF RIPLEY | MS0700008 | 11,351 | Ground water | 8 | No available average above comparison levels |
| CITY OF SARDIS | MS0540018 | 3,439 | Ground water | 2 | No available average above comparison levels |
| CITY OF SENATOBIA | MS0690005 | 8,354 | Ground water | 4 | No available average above comparison levels |
| CITY OF SOUTHAVEN | MS0170018 | 56,000 | Ground water | 4 | No available average above comparison levels |
| CITY OF STARKVILLE | MS0530020 | 32,027 | Ground water | 4 | No available average above comparison levels |
| CITY OF TUPELO | MS0410015 | 37,000 | Surface water purchased | 1 | No available average above comparison levels |
| CITY OF UNION | MS0510011 | 3,432 | Ground water | 1 | No available average above comparison levels |
| CITY OF VICKSBURG | MS0750010 | 29,238 | Ground water | 1 | No available average above comparison levels |
| CITY OF WATER VALLEY | MS0810011 | 3,380 | Ground water | 3 | No available average above comparison levels |
| CITY OF WAVELAND | MS0230002 | 6,400 | Ground water | 4 | No available average above comparison levels |
| CITY OF WAYNESBORO | MS0770003 | 4,570 | Ground water | 2 | No available average above comparison levels |
| CITY OF WEST POINT | MS0130008 | 15,062 | Ground water | 5 | No available average above comparison levels |
| CITY OF WIGGINS | MS0660005 | 4,300 | Ground water | 4 | No available average above comparison levels |
| CITY OF WINONA | MS0490010 | 5,071 | Ground water | 1 | No available average above comparison levels |
| CITY OF YAZOO CITY | MS0820014 | 9,913 | Ground water | 5 | No available average above comparison levels |
| CLARKDALE WATER ASSN # 1 | MS0380001 | 4,500 | Ground water | 4 | No available average above comparison levels |
| CLARKSDALE PUBLIC UTILITIES | MS0140002 | 14,903 | Ground water | 7 | No available average above comparison levels |
| CLAYTON VILLAGE W/A #1-EAST | MS0530006 | 4,984 | Ground water | 3 | No available average above comparison levels |
| CMU - LAKE CAROLINE | MS0450034 | 8,511 | Ground water | 3 | No available average above comparison levels |
| COLUMBUS AIR FORCE BASE | MS0440018 | 3,300 | Ground water purchased | 1 | No available average above comparison levels |
| COLUMBUS LIGHT & WATER | MS0440003 | 23,616 | Ground water | 2 | No available average above comparison levels |
| COMBINED UTILITIES | MS0200001 | 6,658 | Ground water | 3 | No available average above comparison levels |
| COPIAH-NEW ZION WATER ASSN,INC | MS0150009 | 3,791 | Ground water | 4 | No available average above comparison levels |
| CRYSTAL SPRINGS WATER SERVICE | MS0150003 | 5,961 | Ground water | 1 | No available average above comparison levels |
| CULKIN WATER DIST | MS0750002 | 11,730 | Ground water | 1 | No available average above comparison levels |
| DIAMONDHEAD UTILITIES-NORTH | MS0230005 | 12,577 | Ground water | 4 | No available average above comparison levels |
| DIBERVILLE W/S | MS0240002 | 12,721 | Ground water | 3 | No available average above comparison levels |
| DIXIE COMMUNITY UTILITY ASSN. | MS0180005 | 5,840 | Ground water | 3 | No available average above comparison levels |
| EAST LEFLORE WATER & SEWER DST | MS0420010 | 5,206 | Ground water | 3 | No available average above comparison levels |
| EAST LOWNDES #4-HERMAN-VAUGHN | MS0440100 | 5,678 | Ground water | 1 | No available average above comparison levels |
| EAST LOWNDES W/A #2-HUCKLEBERRY | MS0440080 | 7,035 | Ground water | 1 | No available average above comparison levels |
| EAST LOWNDES W/A A EAST-OLD YORKVILLE | MS0440081 | 4,778 | Ground water | 1 | No available average above comparison levels |
| EAST LOWNDES W/A B WEST-OLD YORKVILLE RD | MS0440103 | 7,355 | Ground water | 1 | No available average above comparison levels |
| EAST MADISON WATER ASSN-WEST | MS0450007 | 7,339 | Ground water | 5 | No available average above comparison levels |
| EAST PONTOTOC WATER ASSN | MS0580002 | 5,170 | Ground water | 4 | No available average above comparison levels |
| EAST QUITMAN W/A | MS0120011 | 3,546 | Ground water | 4 | No available average above comparison levels |
| EUDORA UTILITIES ASSOCIATION | MS0170006 | 3,749 | Ground water | 1 | No available average above comparison levels |
| FANNIN WATER ASSN-NORTH | MS0610008 | 7,690 | Ground water | 5 | No available average above comparison levels |
| FARMINGTON WATER ASSOCIATION | MS0020003 | 6,925 | Ground water | 2 | No available average above comparison levels |
| FISHER FERRY WATER DISTRICT | MS0750004 | 5,094 | Ground water | 1 | No available average above comparison levels |
| G T & Y WATER DISTRICT INC | MS0220002 | 3,907 | Ground water | 4 | No available average above comparison levels |
| GLADE WATERWORKS ASSN | MS0340005 | 3,340 | Ground water | 3 | No available average above comparison levels |
| GLENDALE UTILITY DISTRICT | MS0180007 | 4,477 | Ground water | 3 | No available average above comparison levels |
| GREENFIELD WATER ASSOCIATION | MS0610011 | 6,088 | Ground water | 3 | No available average above comparison levels |
| GULF PARK | MS0300044 | 4,813 | Ground water | 6 | No available average above comparison levels |
| HAMILTON WATER DISTRICT | MS0480007 | 4,029 | Ground water | 2 | No available average above comparison levels |
| HARMONTOWN WATER ASSOCIATION | MS0360007 | 1,393 | Ground water | 2 | No available average above comparison levels |
| HEBRON WATER ASSOCIATION | MS0540008 | 1,146 | Ground water | 3 | No available average above comparison levels |
| HILLDALE WATER DISTRICT | MS0750005 | 5,578 | Ground water | 2 | No available average above comparison levels |
| HIWANNEE WATER ASSOCIATION #1 | MS0770005 | 3,749 | Ground water | 1 | No available average above comparison levels |
| HORN LAKE WATER ASSOCIATION | MS0170010 | 12,735 | Ground water | 2 | No available average above comparison levels |
| HUB WATER ASSOCIATION | MS0460008 | 3,260 | Ground water | 2 | No available average above comparison levels |
| HUMPHREYS CO. W/A #1-MIDNIGHT | MS0270018 | 544 | Ground water | 2 | No available average above comparison levels |
| J P UTILITY DISTRICT | MS0340007 | 3,839 | Ground water | 5 | No available average above comparison levels |
| JACKSON CO UTILITY AUTHORITY-EAST | MS0300166 | 6,270 | Ground water | 2 | No available average above comparison levels |
| JACKSON CO UTILITY AUTHORITY-WEST | MS0300164 | 6,178 | Ground water | 4 | No available average above comparison levels |
| JAYESS-TOPEKA-TILTON W/A | MS0390001 | 3,450 | Ground water | 1 | No available average above comparison levels |
| KEESLER AIR FORCE BASE | MS0240049 | 8,006 | Ground water | 7 | No available average above comparison levels |
| KILN UTILITY AND FIRE DISTRICT OF HANCOC | MS0230050 | 7,051 | Ground water purchased | 1 | No available average above comparison levels |
| KOSSUTH W/A #3-PINE MOUNTAIN | MS0020007 | 5,830 | Ground water | 5 | No available average above comparison levels |
| LAMAR PARK WATER & SEWAGE ASSN | MS0370004 | 7,714 | Ground water | 4 | No available average above comparison levels |
| LAMPTON WATER ASSOCIATION | MS0460009 | 1,983 | Ground water | 1 | No available average above comparison levels |
| LANGFORD WATER ASSOCIATION | MS0610012 | 4,013 | Ground water | 4 | No available average above comparison levels |
| LEESBURG WATER ASSOCIATION | MS0610013 | 3,836 | Ground water | 3 | No available average above comparison levels |
| LEWISBURG WATER ASSOCIATION | MS0170011 | 9,390 | Ground water | 2 | No available average above comparison levels |
| LEXIE WATER ASSOCIATION, INC. | MS0740004 | 4,290 | Ground water | 1 | No available average above comparison levels |
| LINCOLN RURAL W/A-HEUCKS RET | MS0430030 | 3,778 | Ground water | 2 | No available average above comparison levels |
| LONG CREEK WATER ASSN #2 | MS0380106 | 3,977 | Ground water | 3 | No available average above comparison levels |
| M & M WATER ASSOCIATION | MS0340010 | 3,000 | Ground water | 5 | No available average above comparison levels |
| MACON ELECTRIC & WATER DEPT. | MS0520004 | 5,174 | Ground water | 4 | No available average above comparison levels |
| MAGEES CREEK W/A-NORTH | MS0740076 | 9,792 | Ground water | 3 | No available average above comparison levels |
| MARSHALL CO WATER ASSN | MS0470105 | 5,599 | Ground water | 2 | No available average above comparison levels |
| MCNAIR-STAMPLEY W/A #1 | MS0320003 | 1,148 | Ground water | 1 | No available average above comparison levels |
| MOOREVILLE-RICHMOND W/A #1 | MS0410007 | 3,807 | Ground water | 6 | No available average above comparison levels |
| MS STATE HOSPITAL-WHITFIELD | MS0610032 | 3,950 | Ground water | 3 | No available average above comparison levels |
| MS STATE UNIVERSITY | MS0530012 | 15,000 | Ground water | 4 | No available average above comparison levels |
| MT GILEAD-IMPROVE WATER ASSN | MS0460012 | 2,416 | Ground water | 1 | No available average above comparison levels |
| NAVAL CONSTRUCTION BATTAL CTR | MS0240060 | 3,347 | Ground water | 3 | No available average above comparison levels |
| NE ITAWAMBA W/A #1-RIDGE | MS0290016 | 2,537 | Ground water | 1 | No available average above comparison levels |
| NESBIT WATER ASSOCIATION | MS0170014 | 5,988 | Ground water | 1 | No available average above comparison levels |
| NORTH HINDS W/A #1-BROWNSVILLE | MS0250015 | 4,277 | Ground water | 3 | No available average above comparison levels |
| NORTH LAMAR WATER ASSOCIATION | MS0370006 | 12,778 | Ground water | 4 | No available average above comparison levels |
| NORTH LAUDERDALE W/A, INC | MS0380006 | 10,544 | Ground water | 4 | No available average above comparison levels |
| NORTH LEE W/A #4-MACEDONIA | MS0410035 | 1,238 | Ground water | 1 | No available average above comparison levels |
| NORTH LEE W/A-AUBURN SYSTEM #1 | MS0410001 | 1,088 | Ground water | 3 | No available average above comparison levels |
| NORTH LUMBERTON UTILITY ASSN | MS0370007 | 4,071 | Ground water | 3 | No available average above comparison levels |
| NORTH PIKE WATER ASSOCIATION | MS0570008 | 5,359 | Ground water | 2 | No available average above comparison levels |
| NORTH TALLAHATCHIE W/A | MS0680007 | 3,089 | Ground water | 2 | No available average above comparison levels |
| NTS UTILITY ASSOCIATION | MS0380028 | 5,103 | Ground water | 2 | No available average above comparison levels |
| OAK HILL WATER ASSN | MS0580004 | 4,739 | Ground water | 4 | No available average above comparison levels |
| OKATOMA WATER ASSOCIATION #2 | MS0640022 | 5,866 | Ground water | 5 | No available average above comparison levels |
| PALMER CREEK UTILITY ASSC, INC | MS0240247 | 570 | Ground water | 1 | No available average above comparison levels |
| PATTISON W/A-WEST | MS0110004 | 2,933 | Ground water | 1 | No available average above comparison levels |
| PEARL RIVER CENTRAL W/A | MS0550005 | 11,830 | Ground water | 4 | No available average above comparison levels |
| PEARL RIVER CENTRAL W/A-BI CO | MS0550058 | 4,406 | Ground water | 2 | No available average above comparison levels |
| PEARL RIVER CENTRAL W/A-HENLEY FIELD | MS0550060 | 4,438 | Ground water | 2 | No available average above comparison levels |
| PICAYUNE UTILITIES, CITY OF | MS0550004 | 11,859 | Ground water | 3 | No available average above comparison levels |
| PLEASANT GROVE WATER ASSN | MS0540016 | 747 | Ground water purchased | 1 | No available average above comparison levels |
| PLEASANT RIDGE W/A | MS0340014 | 5,808 | Ground water | 3 | No available average above comparison levels |
| PROGRESS COMM WATER ASSN | MS0370008 | 7,017 | Ground water | 3 | No available average above comparison levels |
| PRVWSD-PELAHATCHIE BAY | MS0610036 | 11,790 | Ground water | 3 | No available average above comparison levels |
| QUINCY WATER ASSOCIATION #1 | MS0480011 | 3,519 | Ground water | 1 | No available average above comparison levels |
| RANDOLPH WATER ASSOCIATION #1 | MS0580007 | 1,299 | Ground water | 3 | No available average above comparison levels |
| REEDTOWN WATER ASSN | MS0250021 | 3,260 | Ground water | 4 | No available average above comparison levels |
| RIVERBEND UTILITIES INC | MS0240194 | 4,834 | Ground water | 3 | No available average above comparison levels |
| S MS PUBLIC WATER AUTH-ROCK HILL | MS0180022 | 803 | Ground water | 1 | No available average above comparison levels |
| SEBASTOPOL WATER ASSOCIATION | MS0620010 | 6,207 | Ground water | 5 | No available average above comparison levels |
| SMITHS CROSSING WATER ASSN | MS0640014 | 4,480 | Ground water | 5 | Above an EPA comparison level |
| SOUTH CENTRAL WATER ASSN | MS0250022 | 12,260 | Ground water | 2 | No available average above comparison levels |
| SOUTHERN RANKIN W/A #2 PLAIN | MS0610024 | 3,810 | Ground water | 2 | No available average above comparison levels |
| SOUTHWEST COVINGTON W/A | MS0160009 | 3,601 | Ground water | 2 | No available average above comparison levels |
| SOUTHWEST JONES W/A-NORTH | MS0340019 | 6,690 | Ground water | 4 | No available average above comparison levels |
| STANDARD DEDEAUX WATER ASSOCIATION | MS0230063 | 5,386 | Ground water | 3 | No available average above comparison levels |
| STEELE-RINGGOLD W/A #1 | MS0620011 | 2,965 | Ground water | 3 | No available average above comparison levels |
| STENNIS SPACE CENTER | MS0230015 | 4,700 | Ground water | 4 | No available average above comparison levels |
| STRAYHORN W/A-CROCKETT | MS0690006 | 2,801 | Ground water | 4 | No available average above comparison levels |
| STRINGER WATER WORKS | MS0310012 | 3,556 | Ground water | 4 | No available average above comparison levels |
| SUNNYHILL WATER ASSOCIATION | MS0570014 | 3,833 | Ground water | 3 | No available average above comparison levels |
| SUNRISE UTILITY ASSN INC | MS0180013 | 6,067 | Ground water | 3 | No available average above comparison levels |
| SW RANKIN WATER ASSOCIATION #1 | MS0610026 | 3,128 | Ground water | 2 | No available average above comparison levels |
| TALLAHALA W/A-ANTIOCH | MS0310001 | 3,427 | Ground water | 6 | No available average above comparison levels |
| TOOMSUBA WATER ASSOCIATION | MS0380009 | 3,828 | Ground water | 3 | No available average above comparison levels |
| TOPISAW CREEK | MS0430029 | 5,349 | Ground water | 3 | No available average above comparison levels |
| TOWN OF ABERDEEN | MS0480001 | 7,783 | Ground water | 11 | No available average above comparison levels |
| TOWN OF BAY SPRINGS | MS0310002 | 2,925 | Ground water | 5 | No available average above comparison levels |
| TOWN OF BYHALIA | MS0470001 | 4,446 | Ground water | 3 | No available average above comparison levels |
| TOWN OF CALEDONIA | MS0440002 | 6,589 | Ground water | 2 | No available average above comparison levels |
| TOWN OF DERMA | MS0070006 | 957 | Ground water | 3 | No available average above comparison levels |
| TOWN OF DUNCAN | MS0060008 | 341 | Ground water | 2 | No available average above comparison levels |
| TOWN OF FLORENCE | MS0610009 | 5,824 | Ground water | 4 | No available average above comparison levels |
| TOWN OF GUNTOWN | MS0410006 | 3,577 | Ground water | 3 | No available average above comparison levels |
| TOWN OF HAZLEHURST | MS0150007 | 3,600 | Ground water | 1 | No available average above comparison levels |
| TOWN OF PLANTERSVILLE | MS0410011 | 1,845 | Ground water | 3 | No available average above comparison levels |
| TOWN OF PORT GIBSON | MS0110005 | 3,047 | Ground water | 1 | No available average above comparison levels |
| TOWN OF RENOVA | MS0060015 | 1,357 | Ground water | 1 | No available average above comparison levels |
| TOWN OF SALTILLO | MS0410012 | 6,766 | Surface water purchased | 1 | No available average above comparison levels |
| TOWN OF TUNICA | MS0720004 | 4,689 | Ground water | 3 | No available average above comparison levels |
| TOWN OF TUTWILER | MS0680010 | 1,040 | Ground water | 3 | No available average above comparison levels |
| TOWN OF WALNUT | MS0700011 | 1,449 | Ground water | 2 | No available average above comparison levels |
| TUNICA COUNTY UTILITY DISTRICT | MS0720024 | 6,690 | Ground water | 8 | No available average above comparison levels |
| UNION CHURCH WATERWORKS ASSN | MS0320004 | 1,456 | Ground water | 1 | No available average above comparison levels |
| UNIVERSITY OF MISSISSIPPI | MS0360015 | 26,874 | Ground water | 3 | Above an EPA comparison level |
| WALLERVILLE WATER ASSOCIATION | MS0730009 | 2,886 | Ground water | 3 | No available average above comparison levels |
| WALLS WATER ASSN- LAKE FOREST | MS0170043 | 9,298 | Ground water | 1 | No available average above comparison levels |
| WEST JACKSON CO UTILITY DIST | MS0300156 | 28,544 | Ground water | 14 | No available average above comparison levels |
| WEST LAMAR WATER ASSN #1 | MS0370011 | 18,491 | Ground water | 6 | No available average above comparison levels |
| WHEELER-FRANKSTOWN WATER ASSN | MS0590014 | 4,203 | Ground water | 5 | No available average above comparison levels |
| WHISTLER WATER ASSOCIATION | MS0770004 | 4,116 | Ground water | 3 | No available average above comparison levels |
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. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system.