Missouri Citizen Voting-age Population By County in 2018 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for Missouri was 4,585,995 and represented 75.30% of the total Missouri population.
Among all Missouri counties, St. Louis had the highest citizen voting-age population (746.24K), followed by Jackson (506.34K), and St. Charles (289.63K).
In terms of percentages, DeKalb had the highest percentage of its population being citizens of voting-age (83.21%), followed by Hickory (83.19%), and Stone (82.54%).
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 | 746240 | 74.72 |
| Jackson | 506340 | 73.17 |
| St. Charles | 289630 | 74.27 |
| St. Louis city | 239605 | 76.97 |
| Greene | 223765 | 77.58 |
| Clay | 176505 | 73.80 |
| Jefferson | 169065 | 75.71 |
| Boone | 133955 | 75.89 |
| Jasper | 86055 | 72.17 |
| Franklin | 78445 | 76.32 |
| Cass | 76460 | 74.46 |
| Platte | 72795 | 73.66 |
| Buchanan | 66595 | 74.76 |
| Christian | 61830 | 73.37 |
| Cape Girardeau | 59990 | 76.59 |
| Cole | 58315 | 75.99 |
| St. Francois | 51885 | 78.21 |
| Newton | 43065 | 74.00 |
| Taney | 41995 | 76.75 |
| Johnson | 41245 | 76.82 |
| Lincoln | 41000 | 73.79 |
| Pulaski | 39850 | 75.78 |
| Camden | 36465 | 80.86 |
| Callaway | 34980 | 78.01 |
| Phelps | 33875 | 75.63 |
| Butler | 32380 | 75.77 |
| Howell | 30320 | 75.61 |
| Pettis | 30180 | 71.23 |
| Scott | 29250 | 75.52 |
| Webster | 27625 | 72.55 |
| Lawrence | 27540 | 72.22 |
| Laclede | 26670 | 75.12 |
| Barry | 26185 | 73.77 |
| Stone | 26020 | 82.54 |
| Warren | 25600 | 75.49 |
| Lafayette | 24875 | 76.33 |
| Polk | 24230 | 76.80 |
| Stoddard | 22845 | 77.41 |
| Dunklin | 21835 | 71.76 |
| Marion | 21660 | 75.55 |
| Texas | 20115 | 78.36 |
| Adair | 19970 | 78.86 |
| Audrain | 19530 | 75.89 |
| Randolph | 19395 | 77.75 |
| Washington | 19145 | 76.80 |
| Miller | 19050 | 76.05 |
| Crawford | 18545 | 76.38 |
| Nodaway | 18465 | 81.90 |
| Ray | 17555 | 76.91 |
| Saline | 16925 | 73.27 |
| Henry | 16750 | 76.96 |
| Vernon | 15655 | 75.67 |
| Benton | 15605 | 82.18 |
| Morgan | 15570 | 77.33 |
| McDonald | 15525 | 68.02 |
| Clinton | 15520 | 75.80 |
| Perry | 14425 | 75.35 |
| Pike | 14315 | 77.42 |
| Ste. Genevieve | 13910 | 77.84 |
| Wright | 13705 | 74.91 |
| Cooper | 13690 | 77.70 |
| New Madrid | 13580 | 76.25 |
| Andrew | 13345 | 76.67 |
| Pemiscot | 12490 | 73.34 |
| Bates | 12435 | 75.94 |
| Dallas | 12380 | 75.03 |
| Dent | 11920 | 76.88 |
| Moniteau | 11835 | 74.15 |
| Livingston | 11745 | 77.91 |
| Gasconade | 11605 | 78.71 |
| Macon | 11575 | 75.88 |
| Mississippi | 10700 | 77.82 |
| Ripley | 10530 | 76.89 |
| Cedar | 10495 | 75.29 |
| Douglas | 10490 | 78.43 |
| Wayne | 10470 | 78.66 |
| DeKalb | 10455 | 83.21 |
| Osage | 10455 | 76.76 |
| Bollinger | 9565 | 77.89 |
| Madison | 9380 | 76.85 |
| Linn | 9260 | 76.00 |
| Barton | 8920 | 75.27 |
| Montgomery | 8880 | 76.92 |
| Oregon | 8295 | 77.52 |
| Iron | 8075 | 79.01 |
| Ralls | 8005 | 78.36 |
| Howard | 7825 | 77.36 |
| Hickory | 7795 | 83.19 |
| Lewis | 7655 | 76.36 |
| Grundy | 7530 | 75.00 |
| St. Clair | 7510 | 80.02 |
| Ozark | 7410 | 80.24 |
| Maries | 7035 | 79.18 |
| Caldwell | 6785 | 74.97 |
| Carroll | 6785 | 76.71 |
| Monroe | 6700 | 77.41 |
| Shannon | 6445 | 78.17 |
| Harrison | 6395 | 74.75 |
| Daviess | 6150 | 74.10 |
| Dade | 5980 | 78.79 |
| Chariton | 5810 | 77.01 |
| Clark | 5210 | 76.62 |
| Reynolds | 5000 | 79.18 |
| Gentry | 4980 | 74.72 |
| Sullivan | 4720 | 74.74 |
| Carter | 4655 | 75.14 |
| Shelby | 4595 | 75.83 |
| Atchison | 4235 | 80.36 |
| Putnam | 3720 | 77.26 |
| Holt | 3535 | 79.35 |
| Scotland | 3510 | 71.63 |
| Schuyler | 3300 | 73.33 |
| Knox | 2990 | 75.70 |
| Mercer | 2705 | 73.81 |
| Worth | 1610 | 78.92 |
