Skip to content
AquaCensus

Tennessee public water systems

1,390 active systems regulated under the Safe Drinking Water Act, serving a reported 8M people across 322 counties.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

1,390

Population served

8M

Community systems

448

Groundwater share

80.6%

System types in Tennessee

448

Community water system

42

Non-transient non-community water system

900

Transient non-community water system

Largest water systems in Tennessee

The largest active public water systems in Tennessee by population served
#Water systemCountyPopulation servedTypeSource
1Metro Water ServicesDavidson778,153CommunitySurface water
2Memphis Light, Gas, & WaterShelby659,500CommunityGroundwater
3Knoxville Utilities Board - KubKnox254,671CommunitySurface water
4Clarksville Water DepartmentMontgomery251,864CommunitySurface water
5Consolidated U.D. of Rutherford CoRutherford221,871CommunitySurface water
6Tennessee American WaterHamilton207,046CommunitySurface water
7White House Utility DistrictSumner130,411CommunitySurface water
8First U.D. of Knox CountyKnox115,531CommunitySurface water
9Murfreesboro Water DepartmentRutherford111,365CommunitySurface water
10Kingsport Water DeptSullivan107,739CommunitySurface water
11Johnson City Water DeptWashington105,057CommunitySurface water
12Cleveland UtilitiesBradley95,087CommunitySurface water
13Jackson Water SystemMadison91,111CommunityGroundwater
14West Wilson Utility DistrictWilson86,978CommunitySurface water
15Columbia Power and Water SystemsMaury84,617CommunitySurface water
16Hallsdale-Powell U.D.Knox84,315CommunitySurface water
17Madison Suburban U.D.Davidson81,203CommunitySurface water
18West Knox Utility DistrictKnox77,825CommunitySurface water
19Franklin Water DeptWilliamson77,222CommunitySurface water
20Water Auth of Dickson CountyDickson68,675CommunitySurface water
21Hixson Utility DistrictHamilton68,306CommunityGroundwater
22Gallatin Water DepartmentSumner65,964CommunitySurface water
23Spring Hill Water DeptMaury65,840CommunitySurface water
24Harpeth Valley U.D.Davidson65,518CommunitySurface water
25Smyrna Water SystemRutherford60,876CommunitySurface water

By county

Sevier49 systemsJefferson26 systemsMadison24 systemsHenry22 systemsWayne21 systemsCarter21 systemsMonroe20 systemsFranklin19 systemsPolk18 systemsLawrence18 systemsSullivan17 systemsHumphreys17 systemsBlount16 systemsFayette16 systemsCarroll15 systemsHardeman15 systemsGibson15 systemsButler13 systemsMarion13 systemsBedford13 systemsCumberland12 systemsHawkins12 systemsCrawford11 systemsBenton11 systemsMontgomery11 systemsMcMinn11 systemsHamilton11 systemsWeakley11 systemsObion11 systemsJackson10 systemsGreene10 systemsGeauga10 systemsKnox10 systemsMercer10 systemsShelby10 systemsUnion10 systemsGrainger10 systemsHickman10 systemsHaywood10 systemsPortage9 systemsPutnam9 systemsTipton9 systemsRoane9 systemsCampbell9 systemsCoffee9 systemsLapeer8 systemsChester8 systemsBradford8 systemsStewart8 systemsJohnson8 systemsDecatur8 systemsCocke8 systemsLake7 systemsSt. Tammany Parish7 systemsClare7 systemsSt. Clair7 systemsMecosta7 systemsHardin7 systemsLuzerne7 systemsErie7 systemsAdams7 systemsClaiborne7 systemsWilliamson7 systemsSmith7 systemsRhea7 systemsWilson7 systemsCecil6 systemsWashington6 systemsNewaygo6 systemsCass6 systemsBarry6 systemsLincoln6 systemsWarren6 systemsColumbiana6 systemsPerry6 systemsYork6 systemsCrockett6 systemsDeKalb6 systemsGiles6 systemsSumner6 systemsAnderson6 systemsDyer6 systemsLauderdale6 systemsScott6 systemsOceana5 systemsBerrien5 systemsCrow Wing5 systemsAshtabula5 systemsBerks5 systemsMcNairy5 systemsHamblen5 systemsGrundy5 systemsWhite5 systemsSequatchie5 systemsRutherford5 systemsWashington Parish4 systemsKent4 systemsDelta4 systemsIsabella4 systemsSt. Joseph4 systemsKalkaska4 systemsBranch4 systemsHillsdale4 systemsGladwin4 systemsRoscommon4 systemsMorgan4 systemsSt. Francois4 systemsLogan4 systemsStark4 systemsTrumbull4 systemsWood4 systemsPike4 systemsCarbon4 systemsSchuylkill4 systemsColumbia4 systemsRobertson4 systemsOverton4 systemsCheatham4 systemsMarshall4 systemsMaury4 systemsUnicoi4 systemsDavidson4 systemsLewis4 systemsHenderson4 systemsHarris4 systemsMidland4 systemsLouisa4 systemsPittsylvania4 systemsPrince Edward4 systemsMason3 systemsIosco3 systemsCalhoun3 systemsGrand Traverse3 systemsMuskegon3 systemsKalamazoo3 systemsVan Buren3 systemsLenawee3 systemsAnoka3 systemsMacon3 systemsSusquehanna3 systemsTioga3 systemsCambria3 systemsNorthumberland3 systemsSomerset3 systemsIndiana3 systemsWestmoreland3 systemsVenango3 systemsDauphin3 systemsFentress3 systemsBradley3 systemsDickson3 systemsLoudon3 systemsHalifax3 systems
Lassen2 systems
Calcasieu Parish2 systems
Tangipahoa Parish2 systems
Charles2 systems
Antrim2 systems
Benzie2 systems
Osceola2 systems
Marquette2 systems
Manistee2 systems
Alger2 systems
Wexford2 systems
Shiawassee2 systems
Cheboygan2 systems
Mackinac2 systems
Genesee2 systems
Douglas2 systems
Camden2 systems
Howell2 systems
Bollinger2 systems
Stone2 systems
Webster2 systems
Darke2 systems
Fairfield2 systems
Hancock2 systems
Licking2 systems
Medina2 systems
Morrow2 systems
Paulding2 systems
Richland2 systems
Summit2 systems
Tuscarawas2 systems
Josephine2 systems
Klamath2 systems
Lehigh2 systems
Northampton2 systems
Blair2 systems
Huntingdon2 systems
Snyder2 systems
Beaver2 systems
McKean2 systems
Lancaster2 systems
Clay2 systems
Meigs2 systems
Houston2 systems
Moore2 systems
Bledsoe2 systems
Ector2 systems
Fort Bend2 systems
Waller2 systems
Richmond2 systems
Amelia2 systems
Charlotte2 systems
Mecklenburg2 systems
Fresno1 systems
Kern1 systems
Los Angeles1 systems
San Bernardino1 systems
San Diego1 systems
Tehama1 systems
Saguache1 systems
Bryan1 systems
Chatham1 systems
Rabun1 systems
Twiggs1 systems
Winnebago1 systems
Peoria1 systems
Ogle1 systems
Kankakee1 systems
Starke1 systems
Vermillion1 systems
Calloway1 systems
Acadia Parish1 systems
Iberia Parish1 systems
Anne Arundel1 systems
Calvert1 systems
Dorchester1 systems
Garrett1 systems
Harford1 systems
Wicomico1 systems
Alpena1 systems
Presque Isle1 systems
Luce1 systems
Alcona1 systems
Ionia1 systems
Eaton1 systems
Huron1 systems
Arenac1 systems
Chippewa1 systems
Ottawa1 systems
Gratiot1 systems
Montcalm1 systems
Oakland1 systems
Becker1 systems
Chisago1 systems
Dodge1 systems
Freeborn1 systems
Isanti1 systems
Kanabec1 systems
Morrison1 systems
Otter Tail1 systems
Rice1 systems
Roseau1 systems
St. Louis1 systems
Miller1 systems
Phelps1 systems
Cape Girardeau1 systems
Newton1 systems
Taney1 systems
Jasper1 systems
Christian1 systems
Ozark1 systems
Hickory1 systems
Dallas1 systems
Pearl River1 systems
Tunica1 systems
Gaston1 systems
Caswell1 systems
Storey1 systems
Washoe1 systems
Nye1 systems
Tompkins1 systems
Allen1 systems
Champaign1 systems
Clark1 systems
Holmes1 systems
Lucas1 systems
Mahoning1 systems
Muskingum1 systems
Pickaway1 systems
Preble1 systems
Sandusky1 systems
Seneca1 systems
Linn1 systems
Lackawanna1 systems
Wyoming1 systems
Centre1 systems
Fulton1 systems
Clarion1 systems
Lebanon1 systems
Oconee1 systems
Pickett1 systems
Trousdale1 systems
Cannon1 systems
Brazoria1 systems
Burleson1 systems
Colorado1 systems
Galveston1 systems
Kendall1 systems
Kerr1 systems
Liberty1 systems
Potter1 systems
Reeves1 systems
Ward1 systems
Floyd1 systems
Russell1 systems
Rockingham1 systems
Shenandoah1 systems
Accomack1 systems
Prince George1 systems
Southampton1 systems
Surry1 systems
Charles City1 systems
Gloucester1 systems
King William1 systems
Mathews1 systems
Nottoway1 systems
Patrick1 systems
Caroline1 systems
Spokane1 systems