Kentucky public water systems
437 active systems regulated under the Safe Drinking Water Act, serving a reported 5.1M people across 127 counties.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
437
Population served
5.1M
Community systems
372
Groundwater share
30.7%
System types in Kentucky
372
Community water system
16
Non-transient non-community water system
49
Transient non-community water system
Largest water systems in Kentucky
| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Louisville Water Company | Jefferson | 764,769 | Community | Surface water |
| 2 | Kentucky-American Water Co | Fayette | 669,042 | Community | Surface water |
| 3 | Northern Kentucky Water District | Kenton | 259,949 | Community | Surface water |
| 4 | Warren County Water District | Warren | 91,118 | Community | Purchased surface water |
| 5 | Hardin County Water District #2 | Hardin | 76,326 | Community | Surface water |
| 6 | Boone Co Water & Sewer District | Boone | 66,300 | Community | Purchased surface water |
| 7 | Paducah Water Works | McCracken | 65,004 | Community | Surface water |
| 8 | Owensboro Municipal Utilities | Daviess | 60,473 | Community | Groundwater |
| 9 | Bowling Green Municipal Utilities | Warren | 53,601 | Community | Surface water |
| 10 | Frankfort Plant Board | Franklin | 52,153 | Community | Surface water |
| 11 | Georgetown Municipal Water Service | Scott | 44,608 | Community | Surface water |
| 12 | Ashland Water Works | Boyd | 44,402 | Community | Surface water |
| 13 | Mountain Water Dist | Pike | 44,057 | Community | Surface water |
| 14 | Fort Campbell Water System | Montgomery | 43,270 | Community | Surface water |
| 15 | Hopkinsville Water Environment Authority | Christian | 41,350 | Community | Surface water |
| 16 | Oldham County Water District | Oldham | 38,409 | Community | Groundwater |
| 17 | Glasgow Water Company | Barren | 36,766 | Community | Surface water |
| 18 | Richmond Utilities | Madison | 35,640 | Community | Surface water |
| 19 | Nicholasville Water Department | Jessamine | 35,266 | Community | Surface water |
| 20 | Mccreary County Water District | McCreary | 34,439 | Community | Surface water |
| 21 | Daviess Co Water District | Daviess | 33,655 | Community | Purchased groundwater |
| 22 | Meade County Water District | Meade | 33,313 | Community | Purchased surface water |
| 23 | Danville City Water Works | Boyle | 32,600 | Community | Surface water |
| 24 | Henderson Water Utility/North | Henderson | 31,705 | Community | Surface water |
| 25 | Franklin Water Works | Simpson | 31,602 | Community | Surface water |
By county
Harlan17 systemsCalloway15 systemsTrigg11 systemsGraves11 systemsHopkins10 systemsBoone9 systemsLogan8 systemsPulaski8 systemsMontgomery7 systemsGreenup7 systemsStewart7 systemsMadison6 systemsMarshall6 systemsCarlisle6 systemsLyon6 systemsBell6 systemsHenderson6 systemsMcLean6 systemsBallard6 systemsOhio6 systemsWebster6 systemsDaviess5 systemsTodd5 systemsPendleton5 systemsLaurel5 systemsMuhlenberg5 systemsFloyd5 systemsRockcastle5 systemsMeade5 systemsLivingston5 systemsWhitley5 systemsCarter4 systemsCarroll4 systemsMercer4 systemsMason4 systemsUnion4 systemsJessamine4 systemsChristian4 systemsWoodford4 systemsPowell4 systemsHardin4 systemsLincoln4 systemsNelson4 systemsShelby4 systemsHancock4 systemsGrant4 systemsFranklin4 systemsLetcher4 systemsKnott4 systemsPerry3 systemsBreckinridge3 systemsMonroe3 systemsBoyd3 systemsHenry3 systemsRowan3 systemsCaldwell3 systemsBath3 systemsFleming3 systemsPike3 systemsNicholas3 systemsBreathitt3 systemsMcCracken3 systemsMenifee3 systemsHart3 systemsEdmonson3 systemsBracken3 systems
Garrard2 systems
Butler2 systems
Knox2 systems
Estill2 systems
Bullitt2 systems
Oldham2 systems
Morgan2 systems
Clay2 systems
Clark2 systems
Casey2 systems
Boyle2 systems
Harrison2 systems
Wolfe2 systems
Anderson2 systems
Trimble2 systems
Marion2 systems
Jackson2 systems
Warren2 systems
Simpson2 systems
Magoffin2 systems
Cumberland2 systems
Grayson2 systems
Lewis2 systems
Bourbon2 systems
Barren2 systems
Gallatin2 systems
Russell2 systems
Green2 systems
Fulton2 systems
Larue2 systems
Allen2 systems
Hickman2 systems
Hamilton2 systems
Jefferson1 systems
Ashland1 systems
Fayette1 systems
Tazewell1 systems
Owsley1 systems
Wayne1 systems
Clinton1 systems
Taylor1 systems
Kenton1 systems
Sierra1 systems
Elliott1 systems
McCreary1 systems
Leslie1 systems
Lee1 systems
Johnson1 systems
Lake1 systems
Metcalfe1 systems
Adair1 systems
Harris1 systems
Robertson1 systems
Washington1 systems
Lawrence1 systems
Auglaize1 systems
Spencer1 systems
Scott1 systems
Martin1 systems
Crittenden1 systems
Cook1 systems