Indiana 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 Indiana was 4,876,220 and represented 73.47% of the total Indiana population.
Among all Indiana counties, Marion had the highest citizen voting-age population (656.76K), followed by Lake (356.97K), and Allen (262.80K).
In terms of percentages, Brown had the highest percentage of its population being citizens of voting-age (81.28%), followed by Ohio (80.46%), and Delaware (79.89%).
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 |
|---|---|---|
| Marion | 656755 | 69.53 |
| Lake | 356965 | 73.32 |
| Allen | 262800 | 71.02 |
| Hamilton | 217835 | 68.91 |
| St. Joseph | 196140 | 72.85 |
| Vanderburgh | 139390 | 76.88 |
| Elkhart | 136560 | 67.07 |
| Tippecanoe | 134610 | 71.11 |
| Porter | 127965 | 76.15 |
| Hendricks | 116710 | 72.52 |
| Monroe | 114280 | 78.59 |
| Johnson | 110445 | 72.87 |
| Madison | 99655 | 76.95 |
| Delaware | 92365 | 79.89 |
| Clark | 87255 | 75.42 |
| LaPorte | 84985 | 76.88 |
| Vigo | 83445 | 77.48 |
| Howard | 62820 | 76.25 |
| Floyd | 58500 | 76.16 |
| Kosciusko | 57545 | 73.02 |
| Bartholomew | 56045 | 68.44 |
| Hancock | 55545 | 75.23 |
| Morgan | 53260 | 76.39 |
| Grant | 52750 | 78.80 |
| Wayne | 51205 | 76.87 |
| Warrick | 45965 | 74.22 |
| Boone | 45840 | 71.27 |
| Henry | 38270 | 78.93 |
| Dearborn | 38065 | 76.90 |
| Lawrence | 35240 | 77.25 |
| Noble | 34065 | 71.79 |
| Marshall | 33485 | 71.86 |
| Shelby | 33440 | 75.32 |
| DeKalb | 31965 | 74.85 |
| Jackson | 31850 | 72.49 |
| Dubois | 30975 | 73.02 |
| Harrison | 30545 | 76.92 |
| Putnam | 29810 | 79.37 |
| Knox | 29155 | 77.93 |
| Montgomery | 28740 | 75.09 |
| Huntington | 28125 | 77.31 |
| Miami | 27960 | 77.88 |
| Cass | 26780 | 70.32 |
| Steuben | 26755 | 77.61 |
| Whitley | 25650 | 76.23 |
| LaGrange | 25625 | 65.81 |
| Gibson | 25510 | 75.93 |
| Jefferson | 25350 | 78.64 |
| Greene | 25030 | 77.50 |
| Jasper | 25005 | 74.75 |
| Wabash | 24745 | 78.23 |
| Adams | 24030 | 68.28 |
| Daviess | 22595 | 68.61 |
| Clinton | 22235 | 68.84 |
| Ripley | 21465 | 75.52 |
| Washington | 21380 | 76.84 |
| Jennings | 20970 | 75.64 |
| Wells | 20855 | 74.63 |
| Clay | 20155 | 76.72 |
| Posey | 19805 | 77.39 |
| Decatur | 19780 | 74.50 |
| Randolph | 18970 | 75.65 |
| Scott | 18080 | 76.14 |
| Fayette | 18035 | 77.54 |
| White | 17755 | 73.32 |
| Starke | 17375 | 75.74 |
| Franklin | 17355 | 75.99 |
| Sullivan | 16585 | 79.77 |
| Owen | 16330 | 78.21 |
| Spencer | 15820 | 77.08 |
| Jay | 15455 | 73.61 |
| Carroll | 15180 | 75.92 |
| Fulton | 15045 | 74.44 |
| Perry | 14910 | 77.90 |
| Orange | 14880 | 76.13 |
| Parke | 13170 | 77.49 |
| Rush | 12855 | 76.95 |
| Fountain | 12660 | 76.80 |
| Brown | 12220 | 81.28 |
| Vermillion | 12050 | 77.44 |
| Tipton | 11990 | 78.78 |
| Newton | 10580 | 75.46 |
| Pulaski | 9710 | 76.70 |
| Pike | 9590 | 77.28 |
| Blackford | 9475 | 78.11 |
| Crawford | 8230 | 77.79 |
| Martin | 7895 | 77.33 |
| Switzerland | 7895 | 74.27 |
| Benton | 6430 | 74.21 |
| Warren | 6410 | 77.74 |
| Union | 5500 | 76.87 |
| Ohio | 4735 | 80.46 |
