Ranking of Tennessee Counties By Percentage of Population with Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 638.14K people in Tennessee with Irish ancestry (9.30% of Tennessee population). Among all Tennessee counties, Houston County had the highest percentage of its population with Irish ancestry (15.21%), followed by Polk County (14.93%), and Meigs County (14.77%).

The chart and table below shows the top 10 counties with high percentage of its population having Irish ancestry.

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

Data Source: US Census Bureau.
Ranking of Tennessee Counties By Percentage of Population with Irish Ancestry in 2021
Houston County
Polk County
Meigs County
Monroe County
Moore County
Claiborne County
Morgan County
McMinn County
Decatur County
Sullivan County
Ranking of Tennessee Counties By Percentage of Population with Irish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Houston County 15.21
2 Polk County 14.93
3 Meigs County 14.77
4 Monroe County 13.68
5 Moore County 13.64
6 Claiborne County 13.11
7 Morgan County 13.02
8 McMinn County 12.96
9 Decatur County 12.90
10 Sullivan County 12.79
11 Sevier County 12.75
12 Obion County 12.51
13 Stewart County 12.46
14 Dyer County 12.45
15 Wayne County 12.43
16 Cheatham County 12.40
17 Union County 12.30
18 Grundy County 12.20
19 Giles County 12.13
20 Bradley County 12.12
21 Rhea County 12.05
22 Hardin County 11.86
23 Dickson County 11.62
24 Williamson County 11.55
25 Cumberland County 11.43
26 Bledsoe County 11.41
27 Marion County 11.29
28 Van Buren County 11.26
29 Wilson County 11.15
30 Washington County 11.04
31 Crockett County 11.01
32 Fentress County 10.84
33 Loudon County 10.83
34 Lawrence County 10.69
35 Robertson County 10.68
36 Anderson County 10.66
37 Unicoi County 10.62
38 Tipton County 10.61
39 Cannon County 10.48
40 Scott County 10.44
41 Knox County 10.42
42 Marshall County 10.39
43 Blount County 10.32
44 Hamilton County 10.27
45 Gibson County 10.23
46 Greene County 10.03
47 Lewis County 9.98
48 Jefferson County 9.97
48 McNairy County 9.97
49 Jackson County 9.93
50 Sumner County 9.86
51 Hickman County 9.81
52 Johnson County 9.79
53 Henry County 9.78
54 Putnam County 9.76
55 Chester County 9.70
56 Grainger County 9.58
57 Fayette County 9.56
58 Montgomery County 9.47
59 Perry County 9.44
60 Carter County 9.43
61 Hawkins County 9.36
61 Warren County 9.36
62 Humphreys County 9.33
63 Roane County 9.24
64 Lake County 9.20
65 Clay County 9.18
66 Trousdale County 9.02
67 Pickett County 9.00
68 Coffee County 8.99
69 Carroll County 8.97
70 Rutherford County 8.93
71 Smith County 8.91
72 DeKalb County 8.84
73 Campbell County 8.59
74 Henderson County 8.50
75 Franklin County 8.43
75 White County 8.43
76 Macon County 8.40
77 Bedford County 8.34
78 Benton County 8.30
79 Hancock County 8.24
80 Cocke County 8.17
81 Sequatchie County 7.97
82 Overton County 7.96
83 Davidson County 7.87
84 Madison County 7.56
85 Lauderdale County 7.34
85 Lincoln County 7.34
86 Maury County 7.20
87 Weakley County 7.04
88 Hardeman County 7.02
89 Hamblen County 6.26
90 Shelby County 5.15
91 Haywood County 4.79