Kentucky Citizen Voting-age Population By County in 2021 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Kentucky was 3,378,375 and represented 75.17% of the total Kentucky population.
Among all Kentucky counties, Jefferson had the highest citizen voting-age population (575.82K), followed by Fayette (235.13K), and Kenton (124.73K).
In terms of percentages, Lyon had the highest percentage of its population being citizens of voting-age (84.31%), followed by Elliott (81.79%), and Union (81.07%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| Jefferson | 575820 | 73.78 |
| Fayette | 235130 | 73.17 |
| Kenton | 124725 | 74.12 |
| Warren | 96000 | 72.06 |
| Boone | 95155 | 70.69 |
| Hardin | 81320 | 73.84 |
| Daviess | 75600 | 73.76 |
| Campbell | 72415 | 77.85 |
| Madison | 71845 | 77.93 |
| Bullitt | 63075 | 77.18 |
| McCracken | 51925 | 77.05 |
| Christian | 51720 | 71.46 |
| Oldham | 49405 | 73.10 |
| Pulaski | 49325 | 76.22 |
| Laurel | 47505 | 76.51 |
| Pike | 46405 | 78.77 |
| Scott | 41320 | 73.44 |
| Franklin | 39145 | 76.28 |
| Jessamine | 39135 | 73.82 |
| Boyd | 37625 | 77.67 |
| Nelson | 35030 | 75.43 |
| Hopkins | 34670 | 76.32 |
| Henderson | 34610 | 76.74 |
| Shelby | 34590 | 72.78 |
| Barren | 33170 | 74.92 |
| Calloway | 29980 | 80.40 |
| Clark | 28135 | 76.63 |
| Greenup | 28125 | 78.14 |
| Floyd | 27960 | 77.40 |
| Graves | 27465 | 74.64 |
| Whitley | 27075 | 74.02 |
| Marshall | 25110 | 79.31 |
| Muhlenberg | 24300 | 78.36 |
| Boyle | 23825 | 78.19 |
| Knox | 23110 | 76.11 |
| Meade | 22840 | 76.81 |
| Perry | 21445 | 75.46 |
| Montgomery | 21220 | 75.56 |
| Logan | 20640 | 75.55 |
| Harlan | 20630 | 76.63 |
| Carter | 20530 | 76.55 |
| Woodford | 19830 | 74.10 |
| Grayson | 19790 | 75.10 |
| Taylor | 19660 | 75.76 |
| Rowan | 19645 | 79.68 |
| Bell | 19345 | 78.40 |
| Lincoln | 18340 | 75.43 |
| Grant | 18070 | 72.51 |
| Anderson | 17935 | 75.85 |
| Johnson | 17600 | 77.21 |
| Ohio | 17600 | 73.76 |
| Mercer | 17065 | 75.95 |
| Letcher | 16965 | 77.88 |
| Clay | 16035 | 78.28 |
| Breckinridge | 15655 | 76.95 |
| Allen | 15530 | 75.37 |
| Wayne | 15370 | 77.84 |
| Bourbon | 15165 | 74.78 |
| Spencer | 14730 | 76.50 |
| Adair | 14710 | 78.12 |
| Marion | 14615 | 74.74 |
| Simpson | 14570 | 75.40 |
| Hart | 14375 | 74.89 |
| Harrison | 14305 | 76.54 |
| Russell | 13550 | 75.66 |
| McCreary | 13080 | 76.74 |
| Mason | 13075 | 76.44 |
| Garrard | 12945 | 76.06 |
| Rockcastle | 12640 | 78.19 |
| Lawrence | 12335 | 75.79 |
| Casey | 12100 | 76.27 |
| Henry | 11805 | 75.24 |
| Knott | 11570 | 79.77 |
| Fleming | 11255 | 75.06 |
| Union | 11175 | 81.07 |
| Pendleton | 11110 | 75.97 |
| Morgan | 11095 | 80.57 |
| Larue | 11065 | 74.92 |
| Estill | 10950 | 77.36 |
| Trigg | 10870 | 77.28 |
| Breathitt | 10745 | 78.72 |
| Lewis | 10050 | 76.69 |
| Jackson | 10020 | 76.90 |
| Powell | 9845 | 75.44 |
| Edmonson | 9800 | 80.56 |
| Caldwell | 9700 | 76.74 |
| Webster | 9655 | 74.30 |
| Bath | 9385 | 74.01 |
| Butler | 9305 | 74.95 |
| Martin | 9095 | 79.82 |
| Magoffin | 9090 | 76.90 |
| Washington | 8990 | 75.20 |
| Green | 8720 | 78.28 |
| Todd | 8720 | 71.45 |
| Owen | 8655 | 77.55 |
| Monroe | 8555 | 75.91 |
| Leslie | 8380 | 78.91 |
| Metcalfe | 7835 | 76.25 |
| Carroll | 7805 | 72.20 |
| Lyon | 7335 | 84.31 |
| Clinton | 7240 | 77.27 |
| Livingston | 7135 | 79.37 |
| McLean | 6985 | 76.09 |
| Crittenden | 6935 | 77.10 |
| Hancock | 6785 | 74.97 |
| Trimble | 6565 | 77.24 |
| Gallatin | 6485 | 74.58 |
| Bracken | 6355 | 75.70 |
| Ballard | 6165 | 78.89 |
| Elliott | 6065 | 81.79 |
| Lee | 5785 | 79.63 |
| Nicholas | 5755 | 76.58 |
| Wolfe | 5140 | 77.12 |
| Fulton | 5085 | 78.17 |
| Menifee | 4725 | 76.83 |
| Cumberland | 4660 | 77.34 |
| Carlisle | 3690 | 76.56 |
| Hickman | 3615 | 79.80 |
| Owsley | 3270 | 79.85 |
| Robertson | 1660 | 75.63 |
