Ranking of Kentucky Counties By Population with Unclassified Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.43M people in Kentucky with Unclassified ancestry. Among all Kentucky counties, Jefferson County had the highest population with Unclassified ancestry (199.06K), followed by Fayette County (70.91K), and Daviess County (40.15K).

The chart and table below shows the top 10 counties with high number of people with Unclassified ancestry.

You can see similar information for other states and for other ancestry groups in Kentucky.

Data Source: US Census Bureau.
Ranking of Kentucky Counties By Population with Unclassified Ancestry in 2021
Jefferson County
Fayette County
Daviess County
Kenton County
Warren County
Boone County
Hardin County
Madison County
Bullitt County
Laurel County
Ranking of Kentucky Counties By Population with Unclassified Ancestry in 2021
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Rank County Population
1 Jefferson County 199061
2 Fayette County 70905
3 Daviess County 40153
4 Kenton County 40048
5 Warren County 39185
6 Boone County 35327
7 Hardin County 34697
8 Madison County 32111
9 Bullitt County 30775
10 Laurel County 29528
11 Christian County 28343
12 Pulaski County 25714
13 Pike County 23827
14 Campbell County 21384
15 Knox County 18748
16 Barren County 18092
17 Nelson County 17472
18 Whitley County 17184
19 Oldham County 16712
20 Hopkins County 16609
21 McCracken County 16483
22 Henderson County 16134
23 Boyd County 15206
24 Floyd County 14943
25 Perry County 14528
26 Muhlenberg County 14522
27 Clark County 14119
28 Harlan County 13984
29 Jessamine County 13934
30 Scott County 13785
31 Bell County 13471
32 Logan County 12398
33 Taylor County 12010
34 Greenup County 11911
35 Calloway County 11751
36 Graves County 11703
37 Shelby County 11641
38 Grayson County 11034
39 Marshall County 10408
40 Letcher County 10350
41 McCreary County 9926
42 Franklin County 9883
43 Meade County 9734
44 Grant County 9595
45 Marion County 9474
46 Boyle County 8936
47 Spencer County 8414
48 Johnson County 8273
49 Adair County 8256
50 Montgomery County 8168
51 Ohio County 8116
52 Allen County 8065
53 Mercer County 7803
54 Simpson County 7719
55 Hart County 7560
56 Knott County 7529
57 Carter County 7495
58 Wayne County 7459
59 Russell County 7195
60 Breckinridge County 7127
61 Woodford County 6996
62 Rowan County 6965
63 Estill County 6902
64 Harrison County 6750
65 Anderson County 6729
66 Bourbon County 6525
67 Rockcastle County 6354
68 Casey County 6339
69 Powell County 6322
70 Clay County 5902
71 Pendleton County 5832
72 Larue County 5733
73 Lawrence County 5704
74 Leslie County 5632
75 Lincoln County 5349
76 Trigg County 5241
77 Green County 5224
78 Henry County 5040
79 Todd County 5013
80 Washington County 4717
81 Metcalfe County 4713
82 Carroll County 4438
83 Edmonson County 4374
84 Gallatin County 4306
85 Garrard County 4292
86 Monroe County 4270
87 Jackson County 4172
88 Owen County 4159
89 Butler County 4111
90 Webster County 4095
91 Union County 4003
92 Martin County 3991
93 Caldwell County 3880
94 Fleming County 3873
95 Magoffin County 3779
96 Clinton County 3738
97 Mason County 3736
98 Lewis County 3667
99 Morgan County 3597
100 Hancock County 3364
101 Bath County 3251
102 Breathitt County 3137
103 Wolfe County 2963
104 Crittenden County 2795
105 McLean County 2735
106 Livingston County 2598
107 Bracken County 2538
108 Trimble County 2483
109 Lyon County 2319
110 Ballard County 2265
111 Nicholas County 2185
112 Cumberland County 2183
113 Lee County 1860
114 Elliott County 1642
115 Carlisle County 1602
116 Menifee County 1596
117 Fulton County 1260
118 Hickman County 1213
119 Robertson County 918
120 Owsley County 641