Indiana Citizen Voting-age Population By County in 2019 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen voting-age population for Indiana was 4,903,145 and represented 73.56% of the total Indiana population.

Among all Indiana counties, Marion had the highest citizen voting-age population (661.65K), followed by Lake (357.66K), and Allen (264.18K).

In terms of percentages, Brown had the highest percentage of its population being citizens of voting-age (81.58%), followed by Ohio (80.51%), and Delaware (80.27%).

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.

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Indiana Citizen Voting-age Population By County in 2019
Indiana Citizen Voting-age Population By County in 2019
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County Citizen Voting-age Population % of County Population
Marion 661650 69.51
Lake 357655 73.64
Allen 264175 70.91
Hamilton 224790 69.57
St. Joseph 196905 72.87
Vanderburgh 139230 76.80
Elkhart 137895 67.41
Tippecanoe 135440 70.71
Porter 128835 76.40
Hendricks 119470 72.94
Monroe 115375 78.78
Johnson 112115 72.94
Madison 99660 76.98
Delaware 92330 80.27
Clark 87820 75.38
LaPorte 84980 77.15
Vigo 83460 77.67
Howard 63045 76.58
Floyd 58950 76.24
Kosciusko 57600 72.88
Hancock 56785 75.55
Bartholomew 56535 68.54
Morgan 53565 76.61
Grant 52105 78.41
Wayne 50895 76.72
Boone 46690 71.23
Warrick 46250 74.26
Henry 38230 79.22
Dearborn 38010 76.82
Lawrence 35235 77.36
Noble 34080 71.74
Shelby 33575 75.55
Marshall 33145 71.34
DeKalb 32200 75.02
Jackson 32010 72.71
Dubois 31060 73.01
Harrison 30650 76.74
Putnam 29350 78.51
Knox 28850 77.84
Montgomery 28795 75.21
Huntington 28195 77.54
Miami 27885 77.86
Steuben 27015 78.41
Cass 26785 70.71
LaGrange 25940 66.18
Whitley 25795 76.47
Gibson 25425 75.55
Jefferson 25370 78.79
Jasper 25005 74.77
Greene 24980 77.67
Wabash 24665 78.58
Adams 24165 68.31
Daviess 22620 68.30
Clinton 22150 68.63
Washington 21455 77.04
Ripley 21395 75.36
Jennings 21085 76.09
Wells 20980 74.90
Clay 20140 76.77
Decatur 19850 74.74
Posey 19760 77.31
Randolph 18895 75.81
Scott 18230 76.73
Fayette 18000 77.60
White 17835 73.85
Starke 17395 75.80
Franklin 17200 75.52
Sullivan 16615 80.15
Owen 16310 78.28
Spencer 15760 77.08
Jay 15460 74.18
Carroll 15360 76.51
Fulton 14995 74.62
Perry 14940 78.22
Orange 14920 76.34
Parke 13175 77.75
Rush 12790 76.86
Fountain 12665 77.08
Brown 12290 81.58
Vermillion 12015 77.32
Tipton 11915 78.60
Newton 10735 76.73
Pulaski 9640 76.75
Pike 9510 76.82
Blackford 9355 77.86
Crawford 8150 77.11
Switzerland 7960 74.50
Martin 7930 77.67
Benton 6450 74.35
Warren 6385 77.54
Union 5485 77.09
Ohio 4730 80.51