Kentucky 2020 Census Total Population By County

Updated on January 23, 2023.

The total population of Kentucky from the 2020 Census was 4,505,836, based on data from the US Census Bureau.

Jefferson County was the most populated county (782,969), followed by Fayette County (322,570), and then Kenton County (169,064). On the other hand, the 3 counties that were least populated include: Robertson County (2,193), Owsley County (4,051), and Hickman County (4,521).

You can also see this information for other states and also for the US by state.

Hover over or click on the counties to see the number and percentage of Kentucky population that lives in each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can also see the population by county for the different racial groups as well as the different ethnicities in Kentucky.

Kentucky 2020 Census Total Population By County
Kentucky 2020 Census Total Population By County
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County Population % of Kentucky Pop.
Adair 18903 0.42
Allen 20588 0.46
Anderson 23852 0.53
Ballard 7728 0.17
Barren 44485 0.99
Bath 12750 0.28
Bell 24097 0.54
Boone 135968 3.02
Bourbon 20252 0.45
Boyd 48261 1.07
Boyle 30614 0.68
Bracken 8400 0.19
Breathitt 13718 0.30
Breckinridge 20432 0.45
Bullitt 82217 1.83
Butler 12371 0.28
Caldwell 12649 0.28
Calloway 37103 0.82
Campbell 93076 2.07
Carlisle 4826 0.11
Carroll 10810 0.24
Carter 26627 0.59
Casey 15941 0.35
Christian 72748 1.62
Clark 36972 0.82
Clay 20345 0.45
Clinton 9253 0.21
Crittenden 8990 0.20
Cumberland 5888 0.13
Daviess 103312 2.29
Edmonson 12126 0.27
Elliott 7354 0.16
Estill 14163 0.31
Fayette 322570 7.16
Fleming 15082 0.34
Floyd 35942 0.80
Franklin 51541 1.14
Fulton 6515 0.14
Gallatin 8690 0.19
Garrard 16953 0.38
Grant 24941 0.55
Graves 36649 0.81
Grayson 26420 0.59
Green 11107 0.25
Greenup 35962 0.80
Hancock 9095 0.20
Hardin 110702 2.46
Harlan 26831 0.60
Harrison 18692 0.42
Hart 19288 0.43
Henderson 44793 0.99
Henry 15678 0.35
Hickman 4521 0.10
Hopkins 45423 1.01
Jackson 12955 0.29
Jefferson 782969 17.38
Jessamine 52991 1.18
Johnson 22680 0.50
Kenton 169064 3.75
Knott 14251 0.32
Knox 30193 0.67
Larue 14867 0.33
Laurel 62613 1.39
Lawrence 16293 0.36
Lee 7395 0.16
Leslie 10513 0.23
Letcher 21548 0.48
Lewis 13080 0.29
Lincoln 24275 0.54
Livingston 8888 0.20
Logan 27432 0.61
Lyon 8680 0.19
McCracken 67875 1.51
McCreary 16888 0.38
McLean 9152 0.20
Madison 92701 2.06
Magoffin 11637 0.26
Marion 19581 0.44
Marshall 31659 0.70
Martin 11287 0.25
Mason 17120 0.38
Meade 30003 0.67
Menifee 6113 0.14
Mercer 22641 0.50
Metcalfe 10286 0.23
Monroe 11338 0.25
Montgomery 28114 0.62
Morgan 13726 0.31
Muhlenberg 30928 0.69
Nelson 46738 1.04
Nicholas 7537 0.17
Ohio 23772 0.53
Oldham 67607 1.50
Owen 11278 0.25
Owsley 4051 0.09
Pendleton 14644 0.33
Perry 28473 0.63
Pike 58669 1.30
Powell 13129 0.29
Pulaski 65034 1.44
Robertson 2193 0.05
Rockcastle 16037 0.36
Rowan 24662 0.55
Russell 17991 0.40
Scott 57155 1.27
Shelby 48065 1.07
Simpson 19594 0.44
Spencer 19490 0.43
Taylor 26023 0.58
Todd 12243 0.27
Trigg 14061 0.31
Trimble 8474 0.19
Union 13668 0.30
Warren 134554 2.99
Washington 12027 0.27
Wayne 19555 0.43
Webster 13017 0.29
Whitley 36712 0.82
Wolfe 6562 0.15
Woodford 26871 0.60