Ranking of Indiana Counties By Population in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Population for Indiana was 6.92M. Among all Indiana counties, Marion County had the highest population (981.63K), followed by Lake County (502.96K), and Allen County (399.30K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Indiana counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Indiana Counties By Population in 2024
Marion
Lake
Allen
Hamilton
St. Joseph
Elkhart
Tippecanoe
Hendricks
Vanderburgh
Porter
Ranking of Indiana Counties By Population in 2024
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Rank County Population
1 Marion County 981628
2 Lake County 502955
3 Allen County 399295
4 Hamilton County 379704
5 St. Joseph County 273744
6 Elkhart County 207436
7 Tippecanoe County 191650
8 Hendricks County 190629
9 Vanderburgh County 180387
10 Porter County 175860
11 Johnson County 170614
12 Monroe County 140702
13 Madison County 134222
14 Clark County 127479
15 Delaware County 112951
16 LaPorte County 111348
17 Vigo County 106166
18 Hancock County 88810
19 Bartholomew County 84741
20 Howard County 84082
21 Floyd County 81931
22 Kosciusko County 80669
23 Boone County 78773
24 Morgan County 73825
25 Grant County 66458
26 Wayne County 66410
27 Warrick County 66339
28 Dearborn County 51435
29 Henry County 49081
30 Noble County 47811
31 Jackson County 47420
32 Marshall County 46464
33 Shelby County 45654
34 Lawrence County 45192
35 DeKalb County 44330
36 Dubois County 43629
37 LaGrange County 41122
38 Harrison County 39978
39 Montgomery County 38633
40 Putnam County 37804
41 Cass County 37559
42 Huntington County 36944
43 Adams County 36584
44 Knox County 35872
45 Miami County 35613
46 Whitley County 34885
47 Steuben County 34862
48 Daviess County 34097
49 Jasper County 33387
50 Gibson County 33038
51 Jefferson County 32921
52 Clinton County 32895
53 Greene County 31219
54 Wabash County 30777
55 Ripley County 29214
56 Wells County 28798
57 Washington County 28345
58 Jennings County 27634
59 Clay County 26424
60 Decatur County 26421
61 Posey County 25067
62 White County 24833
63 Scott County 24751
64 Randolph County 24337
65 Starke County 23463
66 Fayette County 23335
67 Franklin County 23136
68 Owen County 21851
69 Sullivan County 20768
70 Carroll County 20747
71 Spencer County 20192
72 Jay County 20164
73 Fulton County 20004
74 Orange County 19824
75 Perry County 19320
76 Fountain County 16833
77 Rush County 16759
78 Parke County 16508
79 Brown County 15650
80 Vermillion County 15516
81 Tipton County 15324
82 Newton County 14131
83 Pulaski County 12421
84 Pike County 12116
85 Blackford County 11816
86 Crawford County 10523
87 Switzerland County 9988
88 Martin County 9864
89 Benton County 8853
90 Warren County 8451
91 Union County 6884
92 Ohio County 5996