Kentucky Counties by Population

The most populated counties in Kentucky are Jefferson County with 772,144, Fayette County at 320,154, Kenton County with 171,321, Warren County at 142,229, and Boone County with 140,496. You can get the most current Census population data for all 120 Kentucky counties, sorted from the most populous counties in Kentucky to the least, according to the 2023 Population Estimates Program.

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Rank County Population
1 Jefferson County 772,144
2 Fayette County 320,154
3 Kenton County 171,321
4 Warren County 142,229
5 Boone County 140,496
6 Hardin County 112,273
7 Daviess County 103,458
8 Madison County 96,735
9 Campbell County 93,702
10 Bullitt County 84,863
11 Christian County 72,032
12 Oldham County 70,183
13 McCracken County 67,428
14 Pulaski County 66,191
15 Laurel County 63,296
16 Scott County 60,168
17 Pike County 55,973
18 Jessamine County 55,017
19 Franklin County 51,644
20 Shelby County 49,515
21 Boyd County 47,826
22 Nelson County 47,730
23 Barren County 45,008
24 Hopkins County 44,929
25 Henderson County 44,119
26 Calloway County 38,280
27 Clark County 37,304
28 Whitley County 36,825
29 Graves County 36,461
30 Greenup County 35,221
31 Floyd County 34,423
32 Marshall County 31,744
33 Boyle County 30,988
34 Muhlenberg County 30,568
35 Meade County 30,131
36 Knox County 29,794
37 Montgomery County 28,527
38 Logan County 28,283
39 Woodford County 27,268
40 Perry County 27,133
41 Grayson County 26,825
42 Taylor County 26,443
43 Carter County 26,366
44 Grant County 25,619
45 Harlan County 25,324
46 Lincoln County 24,776
47 Anderson County 24,613
48 Rowan County 24,409
49 Ohio County 23,626
50 Bell County 23,317
51 Mercer County 23,097
52 Johnson County 22,116
53 Allen County 21,788
54 Breckinridge County 21,124
55 Spencer County 20,531
56 Letcher County 20,423
57 Simpson County 20,195
58 Bourbon County 20,134
59 Marion County 19,834
60 Hart County 19,724
61 Clay County 19,648
62 Wayne County 19,580
63 Harrison County 19,415
64 Adair County 19,264
65 Russell County 18,279
66 Garrard County 17,829
67 McCreary County 17,050
68 Mason County 16,841
69 Rockcastle County 16,190
70 Lawrence County 16,000
71 Henry County 15,973
72 Casey County 15,918
73 Fleming County 15,442
74 Larue County 15,303
75 Pendleton County 14,810
76 Trigg County 14,369
77 Morgan County 14,283
78 Estill County 13,936
79 Knott County 13,659
80 Union County 13,106
81 Jackson County 13,104
82 Bath County 12,975
83 Lewis County 12,973
84 Powell County 12,972
85 Breathitt County 12,953
86 Webster County 12,726
87 Caldwell County 12,551
88 Todd County 12,494
89 Edmonson County 12,448
90 Butler County 12,375
91 Washington County 12,267
92 Green County 11,468
93 Owen County 11,313
94 Monroe County 11,306
95 Magoffin County 11,228
96 Carroll County 10,987
97 Martin County 10,928
98 Metcalfe County 10,482
99 Leslie County 9,864
100 Lyon County 9,187
101 Clinton County 9,148
102 McLean County 9,054
103 Crittenden County 8,974
104 Hancock County 8,920
105 Livingston County 8,892
106 Gallatin County 8,792
107 Trimble County 8,607
108 Bracken County 8,426
109 Nicholas County 7,686
110 Ballard County 7,582
111 Lee County 7,293
112 Elliott County 7,245
113 Fulton County 6,338
114 Menifee County 6,286
115 Wolfe County 6,282
116 Cumberland County 6,000
117 Carlisle County 4,704
118 Hickman County 4,447
119 Owsley County 4,001
120 Robertson County 2,313

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. U.S. Census Bureau, Population Division. Web. May 2024. http://www.census.gov/.

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