Missouri Citizen Voting-age Population By County in 2020 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for Missouri was 4,630,115 and represented 75.60% of the total Missouri population.
Among all Missouri counties, St. Louis had the highest citizen voting-age population (747.11K), followed by Jackson (515.33K), and St. Charles (298.87K).
In terms of percentages, Hickory had the highest percentage of its population being citizens of voting-age (83.33%), followed by Nodaway (82.88%), and Stone (82.81%).
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 |
|---|---|---|
| St. Louis | 747105 | 75.00 |
| Jackson | 515330 | 73.54 |
| St. Charles | 298870 | 75.00 |
| St. Louis city | 236030 | 77.46 |
| Greene | 226720 | 77.76 |
| Clay | 182700 | 74.12 |
| Jefferson | 171400 | 76.25 |
| Boone | 136470 | 75.94 |
| Jasper | 87290 | 72.42 |
| Franklin | 79100 | 76.33 |
| Cass | 78715 | 75.19 |
| Platte | 76420 | 74.30 |
| Buchanan | 66550 | 75.71 |
| Christian | 64080 | 73.38 |
| Cape Girardeau | 60605 | 76.88 |
| Cole | 58375 | 76.18 |
| St. Francois | 52085 | 78.14 |
| Newton | 43335 | 74.34 |
| Taney | 43185 | 77.72 |
| Lincoln | 42770 | 74.27 |
| Johnson | 41510 | 76.94 |
| Pulaski | 39695 | 75.81 |
| Camden | 37245 | 81.28 |
| Callaway | 35200 | 78.32 |
| Phelps | 33795 | 75.80 |
| Butler | 32305 | 75.89 |
| Howell | 30255 | 75.39 |
| Pettis | 30160 | 71.10 |
| Scott | 29125 | 75.57 |
| Webster | 28335 | 72.42 |
| Lawrence | 27775 | 72.63 |
| Barry | 26790 | 75.22 |
| Laclede | 26750 | 74.97 |
| Warren | 26705 | 76.10 |
| Stone | 26395 | 82.81 |
| Lafayette | 25105 | 76.79 |
| Polk | 24540 | 76.62 |
| Stoddard | 22815 | 77.99 |
| Marion | 21700 | 75.95 |
| Dunklin | 21380 | 72.10 |
| Texas | 20000 | 78.37 |
| Adair | 19820 | 77.82 |
| Audrain | 19340 | 76.34 |
| Randolph | 19300 | 77.92 |
| Miller | 19195 | 75.66 |
| Washington | 18970 | 76.43 |
| Crawford | 18445 | 76.90 |
| Nodaway | 18400 | 82.88 |
| Ray | 17655 | 77.10 |
| Saline | 16990 | 74.10 |
| Henry | 16815 | 76.94 |
| Benton | 15865 | 82.18 |
| Morgan | 15710 | 76.86 |
| Clinton | 15595 | 76.06 |
| McDonald | 15570 | 68.05 |
| Vernon | 15510 | 75.44 |
| Perry | 14535 | 75.61 |
| Ste. Genevieve | 14010 | 78.33 |
| Pike | 14005 | 77.12 |
| Cooper | 13615 | 77.71 |
| Wright | 13540 | 74.17 |
| Andrew | 13480 | 76.79 |
| New Madrid | 13200 | 76.41 |
| Dallas | 12705 | 75.44 |
| Bates | 12425 | 76.32 |
| Pemiscot | 12050 | 73.79 |
| Dent | 11955 | 77.03 |
| Moniteau | 11825 | 74.35 |
| Livingston | 11715 | 78.26 |
| Gasconade | 11620 | 79.18 |
| Macon | 11540 | 76.15 |
| Cedar | 10625 | 75.11 |
| Osage | 10485 | 77.01 |
| Mississippi | 10410 | 78.10 |
| Ripley | 10410 | 77.20 |
| Wayne | 10405 | 79.67 |
| Douglas | 10325 | 77.43 |
| DeKalb | 9775 | 82.35 |
| Bollinger | 9535 | 78.28 |
| Madison | 9325 | 76.59 |
| Linn | 9145 | 76.18 |
| Barton | 8890 | 75.79 |
| Montgomery | 8800 | 77.09 |
| Oregon | 8155 | 77.22 |
| Ralls | 8045 | 78.41 |
| Iron | 8035 | 79.16 |
| Hickory | 7875 | 83.33 |
| Howard | 7845 | 78.29 |
| Lewis | 7605 | 76.82 |
| St. Clair | 7550 | 79.85 |
| Ozark | 7380 | 80.74 |
| Grundy | 7295 | 73.80 |
| Maries | 6900 | 78.50 |
| Caldwell | 6880 | 76.02 |
| Carroll | 6745 | 77.31 |
| Monroe | 6740 | 78.10 |
| Shannon | 6425 | 78.31 |
| Harrison | 6295 | 74.72 |
| Daviess | 6130 | 73.90 |
| Dade | 5990 | 79.13 |
| Chariton | 5735 | 76.98 |
| Clark | 5215 | 76.86 |
| Reynolds | 5095 | 81.19 |
| Gentry | 4855 | 73.84 |
| Carter | 4605 | 75.68 |
| Sullivan | 4565 | 74.05 |
| Shelby | 4535 | 75.90 |
| Atchison | 4150 | 80.12 |
| Putnam | 3650 | 76.92 |
| Scotland | 3485 | 70.76 |
| Holt | 3475 | 79.43 |
| Schuyler | 3375 | 74.18 |
| Knox | 2985 | 75.57 |
| Mercer | 2710 | 74.76 |
| Worth | 1580 | 79.00 |
