Indiana Counties by Population (2025)

by Kristen Carney Kristen Carney

Updated: August 7, 2025

The most populous counties in Indiana are Marion County with 981,628, Lake County at 502,955, Allen County with 399,295, Hamilton County at 379,704, and St. Joseph County with 273,744. You can get the most current Census population data for all 92 Indiana counties, sorted from the most populous counties in Indiana to the least, according to the 2024 Population Estimates Program.

Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest Indiana counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!

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Rank County Population
1 Marion County 981,628
2 Lake County 502,955
3 Allen County 399,295
4 Hamilton County 379,704
5 St. Joseph County 273,744
6 Elkhart County 207,436
7 Tippecanoe County 191,650
8 Hendricks County 190,629
9 Vanderburgh County 180,387
10 Porter County 175,860
11 Johnson County 170,614
12 Monroe County 140,702
13 Madison County 134,222
14 Clark County 127,479
15 Delaware County 112,951
16 LaPorte County 111,348
17 Vigo County 106,166
18 Hancock County 88,810
19 Bartholomew County 84,741
20 Howard County 84,082
21 Floyd County 81,931
22 Kosciusko County 80,669
23 Boone County 78,773
24 Morgan County 73,825
25 Grant County 66,458
26 Wayne County 66,410
27 Warrick County 66,339
28 Dearborn County 51,435
29 Henry County 49,081
30 Noble County 47,811
31 Jackson County 47,420
32 Marshall County 46,464
33 Shelby County 45,654
34 Lawrence County 45,192
35 DeKalb County 44,330
36 Dubois County 43,629
37 LaGrange County 41,122
38 Harrison County 39,978
39 Montgomery County 38,633
40 Putnam County 37,804
41 Cass County 37,559
42 Huntington County 36,944
43 Adams County 36,584
44 Knox County 35,872
45 Miami County 35,613
46 Whitley County 34,885
47 Steuben County 34,862
48 Daviess County 34,097
49 Jasper County 33,387
50 Gibson County 33,038
51 Jefferson County 32,921
52 Clinton County 32,895
53 Greene County 31,219
54 Wabash County 30,777
55 Ripley County 29,214
56 Wells County 28,798
57 Washington County 28,345
58 Jennings County 27,634
59 Clay County 26,424
60 Decatur County 26,421
61 Posey County 25,067
62 White County 24,833
63 Scott County 24,751
64 Randolph County 24,337
65 Starke County 23,463
66 Fayette County 23,335
67 Franklin County 23,136
68 Owen County 21,851
69 Sullivan County 20,768
70 Carroll County 20,747
71 Spencer County 20,192
72 Jay County 20,164
73 Fulton County 20,004
74 Orange County 19,824
75 Perry County 19,320
76 Fountain County 16,833
77 Rush County 16,759
78 Parke County 16,508
79 Brown County 15,650
80 Vermillion County 15,516
81 Tipton County 15,324
82 Newton County 14,131
83 Pulaski County 12,421
84 Pike County 12,116
85 Blackford County 11,816
86 Crawford County 10,523
87 Switzerland County 9,988
88 Martin County 9,864
89 Benton County 8,853
90 Warren County 8,451
91 Union County 6,884
92 Ohio County 5,996

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2024. Population Division. May 2025.

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