Missouri public water systems
2,943 active systems regulated under the Safe Drinking Water Act, serving a reported 6M people across 182 counties.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
2,943
Population served
6M
Community systems
1,612
Groundwater share
91.9%
System types in Missouri
1,612
Community water system
228
Non-transient non-community water system
1,103
Transient non-community water system
Largest water systems in Missouri
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Mo American St Louis St Charles Counties | St. Louis + 1 more | 1,111,000 | Community | Surface water |
| 2 | Kansas City Pws | Cass + 4 more | 553,295 | Community | Surface water |
| 3 | St Louis City Pws | St. Louis city | 304,709 | Community | Surface water |
| 4 | City Utilities of Springfield | Greene | 210,898 | Community | Surface water |
| 5 | City of Columbia Utilities | Boone | 126,254 | Community | Groundwater |
| 6 | Independence Pws | Jackson | 120,000 | Community | Groundwater |
| 7 | St Charles County Pwsd 2 | St. Charles | 100,587 | Community | Purchased surface water |
| 8 | Lees Summit Pws | Jackson | 99,400 | Community | Purchased surface water |
| 9 | Mo American St Joseph | Andrew + 2 more | 89,171 | Community | Groundwater |
| 10 | St Charles Pws | St. Charles | 78,961 | Community | Purchased surface water |
| 11 | Mo American Joplin | Jasper | 73,728 | Community | Surface water |
| 12 | Blue Springs Pws | Jackson | 61,084 | Community | Purchased surface water |
| 13 | St Peters Pws | St. Charles | 52,575 | Community | Purchased surface water |
| 14 | Wentzville Pws | St. Charles | 41,784 | Community | Groundwater |
| 15 | University of Missouri Columbia | Boone | 40,000 | Community | Groundwater |
| 16 | Cape Girardeau Pws | Cape Girardeau | 39,941 | Community | Groundwater |
| 17 | Jefferson Co Cons Pwsd C 1 | Jefferson | 37,000 | Community | Purchased surface water |
| 18 | Fort Leonard Wood | Pulaski | 34,000 | Community | Surface water |
| 19 | Ofallon Pws | St. Charles | 32,515 | Community | Purchased surface water |
| 20 | Liberty Pws | Clay | 30,800 | Community | Groundwater |
| 21 | Mo American Jefferson City District | Cole | 30,075 | Community | Surface water |
| 22 | Kirkwood Pws | St. Louis | 28,000 | Community | Purchased surface water |
| 23 | Gladstone Pws | Clay | 27,000 | Community | Groundwater |
| 24 | Boone County Cons Pwsd 1 | Boone | 24,700 | Community | Groundwater |
| 25 | Nixa Pws | Christian | 24,532 | Community | Groundwater |
By county
Stone228 systemsCamden226 systemsTaney112 systemsJefferson92 systemsBarry88 systemsBenton83 systemsGreene81 systemsFranklin81 systemsMorgan68 systemsSt. Charles54 systemsMiller51 systemsLincoln45 systemsHickory44 systemsChristian41 systemsSt. Francois39 systemsJasper39 systemsWashington37 systemsNewton37 systemsCrawford36 systemsLawrence36 systemsPhelps32 systemsCass31 systemsWayne31 systemsPettis30 systemsCedar30 systemsMontgomery29 systemsJackson29 systemsCape Girardeau29 systemsReynolds29 systemsSt. Tammany Parish27 systemsWebster27 systemsWarren27 systemsMcDonald26 systemsOzark25 systemsLafayette Parish23 systemsPulaski23 systemsIron23 systemsShannon23 systemsPolk23 systemsSt. Louis23 systemsClay20 systemsPlatte20 systemsStoddard19 systemsDade19 systemsScott18 systemsCole17 systemsGasconade17 systemsSte. Genevieve17 systemsDallas17 systemsHarrison16 systemsDent16 systemsBates15 systemsLafayette15 systemsJohnson15 systemsNew Madrid15 systemsCallaway14 systemsPerry14 systemsButler14 systemsBollinger14 systemsHowell14 systemsSt. Clair14 systemsLaclede14 systemsHenry13 systemsOsage13 systemsBoone13 systemsDunklin13 systemsCaddo Parish12 systemsNodaway12 systemsTexas12 systemsDaviess11 systemsSaline11 systemsMoniteau11 systemsWright11 systemsAndrew10 systemsMaries10 systemsLinn9 systemsCarter9 systemsDouglas9 systemsLivingston8 systemsCaldwell8 systemsRay8 systemsSullivan8 systemsCooper8 systemsRipley8 systemsMadison8 systemsVernon8 systemsAustin8 systemsEllis8 systemsClinton7 systemsHolt7 systemsAtchison7 systemsMacon7 systemsCarroll7 systemsAudrain7 systemsOregon7 systemsGentry6 systemsDeKalb6 systemsPike6 systemsHoward6 systemsRandolph6 systemsMississippi6 systemsPemiscot6 systemsLivingston Parish5 systemsChariton5 systemsLewis5 systemsShelby5 systemsGrundy5 systemsBurnet5 systemsHarris5 systemsKerr5 systemsMarion4 systemsCalloway4 systemsAdair4 systemsSchuyler4 systemsClark4 systemsMonroe4 systemsRalls4 systemsBarton4 systemsAransas4 systemsLlano4 systemsLubbock4 systemsParker4 systemsWilson4 systemsCalcasieu Parish3 systemsOuachita Parish3 systemsBuchanan3 systemsWorth3 systemsPutnam3 systemsPanola3 systemsDenton3 systemsOrange3 systemsVictoria3 systems
Summit2 systems
Hubbard2 systems
Knox2 systems
Scotland2 systems
Mercer2 systems
Hancock2 systems
Bandera2 systems
Erath2 systems
Gillespie2 systems
Hood2 systems
San Augustine2 systems
Val Verde2 systems
Sebastian1 systems
Grand1 systems
Beauregard Parish1 systems
Bossier Parish1 systems
Iberia Parish1 systems
Jackson Parish1 systems
Sabine Parish1 systems
Washington Parish1 systems
Roscommon1 systems
St. Louis city1 systems
Adams1 systems
DeSoto1 systems
Forrest1 systems
Lamar1 systems
Noxubee1 systems
Tate1 systems
Yalobusha1 systems
Brazoria1 systems
Burleson1 systems
Camp1 systems
Chambers1 systems
Galveston1 systems
Guadalupe1 systems
Hays1 systems
Hidalgo1 systems
Hunt1 systems
Liberty1 systems
Limestone1 systems
McCulloch1 systems
Matagorda1 systems
Medina1 systems
Navarro1 systems
Robertson1 systems
Sabine1 systems
Tarrant1 systems
Wise1 systems
Wood1 systems
Prince William1 systems