Ranking of Kentucky Counties By Population in 2023

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2023, the Population for Kentucky was 4.55M. Among all Kentucky counties, Jefferson County had the highest population (783.38K), followed by Fayette County (324.62K), and Kenton County (172.25K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Kentucky counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Kentucky Counties By Population in 2023
Jefferson
Fayette
Kenton
Warren
Boone
Hardin
Daviess
Madison
Campbell
Bullitt
Ranking of Kentucky Counties By Population in 2023
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Rank County Population
1 Jefferson County 783381
2 Fayette County 324624
3 Kenton County 172248
4 Warren County 143929
5 Boone County 141511
6 Hardin County 112396
7 Daviess County 103927
8 Madison County 97599
9 Campbell County 93859
10 Bullitt County 85000
11 Christian County 71235
12 Oldham County 70308
13 McCracken County 67456
14 Pulaski County 66219
15 Laurel County 63352
16 Scott County 60600
17 Pike County 55998
18 Jessamine County 55511
19 Franklin County 51826
20 Shelby County 49617
21 Nelson County 47981
22 Boyd County 47771
23 Barren County 45132
24 Hopkins County 44985
25 Henderson County 44127
26 Calloway County 38520
27 Clark County 37337
28 Whitley County 36917
29 Graves County 36600
30 Greenup County 35299
31 Floyd County 34971
32 Marshall County 31717
33 Boyle County 31096
34 Muhlenberg County 30527
35 Meade County 30166
36 Knox County 29723
37 Montgomery County 28531
38 Logan County 28285
39 Woodford County 27522
40 Perry County 27082
41 Grayson County 26806
42 Taylor County 26582
43 Carter County 26255
44 Grant County 25596
45 Harlan County 25302
46 Lincoln County 24738
47 Anderson County 24618
48 Rowan County 24503
49 Ohio County 23719
50 Bell County 23208
51 Mercer County 23189
52 Johnson County 22139
53 Allen County 21779
54 Breckinridge County 21117
55 Spencer County 20557
56 Letcher County 20414
57 Simpson County 20223
58 Bourbon County 20220
59 Marion County 19840
60 Hart County 19726
61 Clay County 19658
62 Wayne County 19630
63 Harrison County 19409
64 Adair County 19306
65 Russell County 18308
66 Garrard County 17888
67 McCreary County 17069
68 Mason County 16857
69 Rockcastle County 16171
70 Lawrence County 15974
71 Henry County 15951
72 Casey County 15887
73 Fleming County 15405
74 Larue County 15328
75 Pendleton County 14804
76 Morgan County 14385
77 Trigg County 14370
78 Estill County 13937
79 Knott County 13660
80 Jackson County 13138
81 Union County 13116
82 Powell County 13003
83 Bath County 12972
84 Breathitt County 12962
85 Lewis County 12956
86 Webster County 12753
87 Todd County 12576
88 Caldwell County 12561
89 Edmonson County 12466
90 Butler County 12430
91 Washington County 12257
92 Green County 11454
93 Owen County 11309
94 Monroe County 11271
95 Magoffin County 11202
96 Carroll County 10986
97 Martin County 10927
98 Metcalfe County 10495
99 Leslie County 9865
100 Lyon County 9190
101 Clinton County 9178
102 McLean County 9076
103 Crittenden County 8996
104 Hancock County 8936
105 Livingston County 8889
106 Gallatin County 8823
107 Trimble County 8616
108 Bracken County 8435
109 Nicholas County 7674
110 Ballard County 7608
111 Lee County 7301
112 Elliott County 7271
113 Fulton County 6378
114 Wolfe County 6370
115 Menifee County 6279
116 Cumberland County 5980
117 Carlisle County 4742
118 Hickman County 4423
119 Owsley County 3984
120 Robertson County 2334