Kentucky Citizen Population By County in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen population for Kentucky was 4,357,080 and represented 97.65% of the total Kentucky population.

Among all Kentucky counties, Jefferson had the highest citizen population (734.29K), followed by Fayette (300.02K), and Kenton (162.96K).

In terms of percentages, Jackson had the highest percentage of its population being citizens (100.00%), followed by Livingston (100.00%), and Menifee (100.00%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

You may also be interested in:
Kentucky Citizen Voting-age Population By County in 2020

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Kentucky Citizen Population By County in 2020

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County	Citizen Population	% of County Population
Jefferson	734285	95.56
Fayette	300020	93.12
Kenton	162955	97.84
Boone	127830	96.57
Warren	123165	94.14
Hardin	107985	98.50
Daviess	98990	98.01
Campbell	92515	98.83
Madison	90675	98.46
Bullitt	80265	99.19
Christian	70590	98.77
Oldham	65415	98.35
McCracken	65160	99.50
Pulaski	63990	98.77
Laurel	60495	99.78
Pike	58425	99.71
Scott	54940	98.18
Jessamine	51995	97.23
Franklin	49245	97.04
Boyd	47025	99.29
Shelby	46135	95.92
Nelson	45725	99.59
Henderson	45260	99.36
Hopkins	44735	99.31
Barren	43460	98.72
Calloway	38135	97.81
Graves	36510	98.34
Whitley	35905	99.05
Floyd	35815	99.68
Clark	35795	99.02
Greenup	35265	99.73
Marshall	31165	99.81
Knox	31020	99.14
Muhlenberg	30530	99.08
Boyle	29665	98.59
Meade	28220	99.44
Montgomery	27825	99.23
Logan	26845	99.24
Carter	26830	99.46
Bell	26415	99.96
Harlan	26220	99.68
Grayson	26135	99.32
Perry	25920	98.69
Woodford	25425	96.00
Taylor	25300	98.94
Grant	25085	99.92
Lincoln	24305	99.22
Rowan	24265	98.90
Ohio	23735	98.57
Anderson	22420	99.29
Johnson	22225	99.11
Letcher	21895	99.82
Mercer	21195	97.72
Allen	20875	99.10
Breckinridge	20210	99.63
Wayne	20160	98.61
Clay	20025	99.58
Bourbon	19325	96.63
Adair	19105	98.66
Marion	19055	98.96
Spencer	18880	99.66
Hart	18745	99.52
Harrison	18615	99.20
Simpson	18175	99.21
Russell	17570	98.46
Garrard	17300	98.55
McCreary	17210	99.28
Mason	16830	98.31
Rockcastle	16790	99.97
Henry	15830	98.94
Casey	15825	99.09
Lawrence	15550	99.65
Knott	14970	99.54
Pendleton	14560	99.83
Fleming	14495	99.83
Trigg	14480	99.38
Union	14450	99.11
Estill	14060	99.12
Larue	13950	97.76
Jackson	13370	100.00
Lewis	13320	99.81
Morgan	13180	99.32
Breathitt	12775	99.81
Webster	12670	97.31
Caldwell	12585	99.25
Butler	12520	98.16
Bath	12365	99.56
Magoffin	12295	99.60
Powell	12245	99.67
Edmonson	12175	99.84
Todd	12105	98.14
Washington	11915	98.92
Martin	11390	99.74
Green	10895	99.05
Owen	10840	99.95
Carroll	10625	99.39
Monroe	10475	98.68
Leslie	10065	99.85
Clinton	10060	98.87
Metcalfe	10055	99.95
Livingston	9170	100.00
McLean	9155	99.51
Crittenden	8910	99.66
Hancock	8705	99.49
Gallatin	8595	98.12
Trimble	8335	97.71
Bracken	8295	99.82
Lyon	8100	98.48
Ballard	7880	99.56
Elliott	7455	99.93
Wolfe	7180	99.86
Nicholas	7140	99.31
Lee	7030	99.15
Cumberland	6590	98.95
Menifee	6465	100.00
Fulton	6040	99.59
Carlisle	4735	99.90
Hickman	4455	99.89
Owsley	4415	100.00
Robertson	2140	100.00