Indiana Population By County in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the population of Indiana was 6,731,010. Among all Indiana counties, Marion[object Promise] had the highest population (963,829), followed by Lake[object Promise] (486,244), and Allen[object Promise] (379,006). Ohio[object Promise] was the least populated county (5,908).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Indiana Population By County in 2019
Indiana Population By County in 2019
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County Population % of State Population
Adams 35688 0.53
Allen 379006 5.63
Bartholomew 84063 1.25
Benton 8763 0.13
Blackford 11787 0.18
Boone 67915 1.01
Brown 15066 0.22
Carroll 20211 0.30
Cass 37610 0.56
Clark 118191 1.76
Clay 26301 0.39
Clinton 32298 0.48
Crawford 10593 0.16
Daviess 33439 0.50
Dearborn 49573 0.74
Decatur 26472 0.39
DeKalb 43561 0.65
Delaware 113769 1.69
Dubois 42578 0.63
Elkhart 206268 3.06
Fayette 23038 0.34
Floyd 78601 1.17
Fountain 16425 0.24
Franklin 22763 0.34
Fulton 20042 0.30
Gibson 33709 0.50
Grant 65836 0.98
Greene 32117 0.48
Hamilton 337955 5.02
Hancock 78159 1.16
Harrison 40552 0.60
Hendricks 169924 2.52
Henry 48025 0.71
Howard 82660 1.23
Huntington 36544 0.54
Jackson 44179 0.66
Jasper 33516 0.50
Jay 20446 0.30
Jefferson 32265 0.48
Jennings 27662 0.41
Johnson 158332 2.35
Knox 36603 0.54
Kosciusko 79438 1.18
LaGrange 39771 0.59
Lake 486244 7.22
LaPorte 110044 1.64
Lawrence 45419 0.68
Madison 129416 1.92
Marion 963829 14.32
Marshall 46197 0.69
Martin 10179 0.15
Miami 35488 0.53
Monroe 148178 2.20
Montgomery 38275 0.57
Morgan 70403 1.05
Newton 13972 0.21
Noble 47907 0.71
Ohio 5908 0.09
Orange 19657 0.29
Owen 20881 0.31
Parke 16893 0.25
Perry 19184 0.28
Pike 12383 0.18
Porter 170599 2.54
Posey 25408 0.38
Pulaski 12379 0.18
Putnam 37566 0.56
Randolph 24533 0.36
Ripley 28465 0.42
Rush 16605 0.25
St. Joseph 271695 4.04
Scott 23855 0.35
Shelby 44771 0.67
Spencer 20273 0.30
Starke 23011 0.34
Steuben 34759 0.52
Sullivan 20601 0.31
Switzerland 10815 0.16
Tippecanoe 194881 2.90
Tipton 15133 0.23
Union 7135 0.11
Vanderburgh 181561 2.70
Vermillion 15493 0.23
Vigo 106958 1.59
Wabash 31028 0.46
Warren 8262 0.12
Warrick 62851 0.93
Washington 28063 0.42
Wayne 65943 0.98
Wells 28131 0.42
White 24197 0.36
Whitley 33868 0.50