Ranking of Tennessee Counties By Percentage of Population with Scotch Irish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 135.91K people in Tennessee with Scotch Irish ancestry (1.98% of Tennessee population). Among all Tennessee counties, Johnson County had the highest percentage of its population with Scotch Irish ancestry (4.26%), followed by Sevier County (3.84%), and Sullivan County (3.73%).
The chart and table below shows the top 10 counties with high percentage of its population having Scotch Irish ancestry.
You can see similar information for other states and for other ancestry groups in Tennessee.
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Related Topics: Tennessee ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Tennessee Counties By Percentage of Population with Scotch Irish Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Johnson County | 4.26 |
| 2 | Sevier County | 3.84 |
| 3 | Sullivan County | 3.73 |
| 4 | Knox County | 3.47 |
| 5 | Anderson County | 3.34 |
| 6 | Morgan County | 3.14 |
| 7 | Roane County | 3.12 |
| 8 | Blount County | 3.06 |
| 8 | Jefferson County | 3.06 |
| 9 | Scott County | 3.05 |
| 9 | Stewart County | 3.05 |
| 10 | Fentress County | 3.04 |
| 11 | Washington County | 2.98 |
| 12 | Marshall County | 2.94 |
| 13 | Dyer County | 2.86 |
| 14 | Carter County | 2.85 |
| 15 | Williamson County | 2.58 |
| 16 | Campbell County | 2.50 |
| 17 | Sequatchie County | 2.44 |
| 17 | White County | 2.44 |
| 18 | Bradley County | 2.37 |
| 19 | Carroll County | 2.33 |
| 20 | Hawkins County | 2.32 |
| 21 | Putnam County | 2.31 |
| 22 | Loudon County | 2.29 |
| 23 | Franklin County | 2.27 |
| 24 | Grainger County | 2.25 |
| 24 | Unicoi County | 2.25 |
| 25 | Sumner County | 2.18 |
| 26 | Madison County | 2.10 |
| 27 | Fayette County | 2.08 |
| 28 | Clay County | 2.05 |
| 28 | Union County | 2.05 |
| 29 | Giles County | 2.04 |
| 30 | Lewis County | 2.03 |
| 31 | Humphreys County | 2.01 |
| 31 | Meigs County | 2.01 |
| 32 | Lawrence County | 1.99 |
| 33 | Hamblen County | 1.94 |
| 34 | Marion County | 1.93 |
| 34 | Monroe County | 1.93 |
| 35 | Cumberland County | 1.91 |
| 36 | Greene County | 1.90 |
| 37 | Maury County | 1.89 |
| 38 | Rutherford County | 1.84 |
| 39 | Rhea County | 1.83 |
| 40 | Macon County | 1.82 |
| 41 | Grundy County | 1.80 |
| 42 | Wilson County | 1.78 |
| 43 | Lincoln County | 1.76 |
| 44 | Hamilton County | 1.75 |
| 45 | Smith County | 1.74 |
| 46 | Perry County | 1.72 |
| 47 | Davidson County | 1.69 |
| 48 | Tipton County | 1.65 |
| 49 | Cannon County | 1.54 |
| 49 | Henderson County | 1.54 |
| 49 | McNairy County | 1.54 |
| 50 | Warren County | 1.53 |
| 51 | McMinn County | 1.52 |
| 51 | Robertson County | 1.52 |
| 52 | Lake County | 1.45 |
| 53 | Cheatham County | 1.43 |
| 54 | Gibson County | 1.42 |
| 55 | Crockett County | 1.41 |
| 56 | Jackson County | 1.35 |
| 57 | Polk County | 1.33 |
| 58 | Bedford County | 1.32 |
| 59 | Pickett County | 1.25 |
| 59 | Van Buren County | 1.25 |
| 60 | Benton County | 1.22 |
| 60 | Claiborne County | 1.22 |
| 60 | Hardin County | 1.22 |
| 61 | Cocke County | 1.20 |
| 62 | Coffee County | 1.16 |
| 63 | Dickson County | 1.15 |
| 64 | Henry County | 1.13 |
| 65 | Hardeman County | 1.11 |
| 66 | Montgomery County | 1.08 |
| 67 | Obion County | 1.06 |
| 67 | Weakley County | 1.06 |
| 68 | Shelby County | 1.03 |
| 69 | Wayne County | 0.98 |
| 70 | Decatur County | 0.93 |
| 70 | Moore County | 0.93 |
| 71 | Hickman County | 0.88 |
| 72 | DeKalb County | 0.83 |
| 73 | Lauderdale County | 0.80 |
| 74 | Bledsoe County | 0.79 |
| 74 | Chester County | 0.79 |
| 75 | Overton County | 0.67 |
| 76 | Houston County | 0.60 |
| 77 | Haywood County | 0.54 |
| 78 | Hancock County | 0.37 |
| 79 | Trousdale County | 0.25 |
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