Indiana Population By County in 2017

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2017, the population of Indiana was 6,662,068. Among all Indiana counties, Marion[object Promise] had the highest population (951,247), followed by Lake[object Promise] (484,834), and Allen[object Promise] (371,803). Ohio[object Promise] was the least populated county (5,867).

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 2017
Indiana Population By County in 2017
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County Population % of State Population
Adams 35409 0.53
Allen 371803 5.58
Bartholomew 82455 1.24
Benton 8637 0.13
Blackford 12019 0.18
Boone 65833 0.99
Brown 15025 0.23
Carroll 20074 0.30
Cass 37827 0.57
Clark 116648 1.75
Clay 26176 0.39
Clinton 32155 0.48
Crawford 10532 0.16
Daviess 33127 0.50
Dearborn 49634 0.75
Decatur 26627 0.40
DeKalb 42830 0.64
Delaware 115268 1.73
Dubois 42520 0.64
Elkhart 204279 3.07
Fayette 23138 0.35
Floyd 77043 1.16
Fountain 16442 0.25
Franklin 22702 0.34
Fulton 20022 0.30
Gibson 33730 0.51
Grant 66373 1.00
Greene 32194 0.48
Hamilton 323225 4.85
Hancock 75040 1.13
Harrison 39797 0.60
Hendricks 163637 2.46
Henry 48178 0.72
Howard 82302 1.24
Huntington 36253 0.54
Jackson 43942 0.66
Jasper 33439 0.50
Jay 20879 0.31
Jefferson 32031 0.48
Jennings 27686 0.42
Johnson 153879 2.31
Knox 37070 0.56
Kosciusko 79121 1.19
LaGrange 39247 0.59
Lake 484834 7.28
LaPorte 109958 1.65
Lawrence 45595 0.68
Madison 129465 1.94
Marion 951247 14.28
Marshall 46434 0.70
Martin 10188 0.15
Miami 35903 0.54
Monroe 146840 2.20
Montgomery 38343 0.58
Morgan 69835 1.05
Newton 14036 0.21
Noble 47379 0.71
Ohio 5867 0.09
Orange 19413 0.29
Owen 20779 0.31
Parke 16902 0.25
Perry 19010 0.28
Pike 12302 0.19
Porter 168568 2.53
Posey 25563 0.38
Pulaski 12529 0.19
Putnam 37409 0.56
Randolph 24917 0.37
Ripley 28432 0.43
Rush 16642 0.25
St. Joseph 270219 4.06
Scott 23810 0.36
Shelby 44378 0.67
Spencer 20441 0.31
Starke 22946 0.34
Steuben 34422 0.52
Sullivan 20690 0.31
Switzerland 10689 0.16
Tippecanoe 191334 2.87
Tipton 15148 0.23
Union 7199 0.11
Vanderburgh 181031 2.72
Vermillion 15507 0.23
Vigo 107648 1.62
Wabash 31401 0.47
Warren 8203 0.12
Warrick 62433 0.94
Washington 27780 0.42
Wayne 66307 1.00
Wells 27934 0.42
White 24178 0.36
Whitley 33732 0.51