Ranking of Kentucky Counties By Population in 2012

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2012, the Population for Kentucky was 4.39M. Among all Kentucky counties, Jefferson County had the highest population (751.80K), followed by Fayette County (306.06K), and Kenton County (161.77K).

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 2012
Jefferson
Fayette
Kenton
Boone
Warren
Hardin
Daviess
Campbell
Madison
Bullitt
Ranking of Kentucky Counties By Population in 2012
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Rank County Population
1 Jefferson County 751802
2 Fayette County 306062
3 Kenton County 161774
4 Boone County 123456
5 Warren County 117436
6 Hardin County 108280
7 Daviess County 97871
8 Campbell County 91659
9 Madison County 85418
10 Bullitt County 75906
11 Christian County 74975
12 McCracken County 65609
13 Pike County 64605
14 Pulaski County 63528
15 Oldham County 62119
16 Laurel County 59542
17 Jessamine County 49469
18 Franklin County 49455
19 Boyd County 49238
20 Scott County 48976
21 Hopkins County 46618
22 Henderson County 46436
23 Nelson County 44401
24 Shelby County 43704
25 Barren County 42610
26 Floyd County 39142
27 Calloway County 38065
28 Graves County 37566
29 Greenup County 36698
30 Whitley County 35784
31 Clark County 35694
32 Knox County 31493
33 Muhlenberg County 31387
34 Marshall County 31264
35 Meade County 29257
36 Boyle County 29026
37 Harlan County 28686
38 Perry County 28296
39 Bell County 28288
40 Carter County 27633
41 Montgomery County 26870
42 Logan County 26731
43 Grayson County 25797
44 Woodford County 25114
45 Taylor County 25035
46 Grant County 24522
47 Lincoln County 24412
48 Ohio County 24029
49 Letcher County 24009
50 Rowan County 23808
51 Johnson County 23419
52 Anderson County 21702
53 Clay County 21530
54 Mercer County 21333
55 Wayne County 20816
56 Allen County 20220
57 Breckinridge County 20079
58 Bourbon County 20050
59 Marion County 19929
60 Adair County 18939
61 Harrison County 18612
62 Hart County 18399
63 McCreary County 18062
64 Russell County 17648
65 Simpson County 17552
66 Spencer County 17486
67 Mason County 17463
68 Rockcastle County 17063
69 Garrard County 17008
70 Knott County 16122
71 Casey County 16029
72 Lawrence County 15881
73 Henry County 15335
74 Union County 15092
75 Pendleton County 14555
76 Fleming County 14527
77 Estill County 14512
78 Trigg County 14412
79 Larue County 14057
80 Lewis County 13840
81 Breathitt County 13608
82 Morgan County 13538
83 Webster County 13461
84 Jackson County 13303
85 Magoffin County 13066
86 Caldwell County 12988
87 Butler County 12745
88 Martin County 12734
89 Todd County 12617
90 Powell County 12470
91 Edmonson County 12106
92 Washington County 11813
93 Bath County 11783
94 Green County 11304
95 Leslie County 11147
96 Carroll County 10877
97 Monroe County 10845
98 Owen County 10762
99 Clinton County 10282
100 Metcalfe County 9973
101 McLean County 9478
102 Livingston County 9438
103 Crittenden County 9222
104 Trimble County 8843
105 Hancock County 8645
106 Gallatin County 8551
107 Bracken County 8464
108 Lyon County 8446
109 Ballard County 8274
110 Elliott County 7633
111 Lee County 7582
112 Wolfe County 7197
113 Nicholas County 7022
114 Cumberland County 6849
115 Fulton County 6557
116 Menifee County 6337
117 Carlisle County 5028
118 Hickman County 4747
119 Owsley County 4685
120 Robertson County 2218