Ranking of Indiana Counties By Population in 2015
Updated on January 28, 2024.
Based on the US Census Vintage data estimates, in 2015, the Population for Indiana was 6.61M. Among all Indiana counties, Marion County had the highest population (940.15K), followed by Lake County (488.20K), and Allen County (367.51K).
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.
Related Topics: Indiana Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2015 Census.
See this for other years:
Ranking of Indiana Counties By Population in 2015
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| Rank | County | Population |
|---|---|---|
| 1 | Marion County | 940152 |
| 2 | Lake County | 488195 |
| 3 | Allen County | 367508 |
| 4 | Hamilton County | 308623 |
| 5 | St. Joseph County | 268567 |
| 6 | Elkhart County | 203022 |
| 7 | Tippecanoe County | 186858 |
| 8 | Vanderburgh County | 181600 |
| 9 | Porter County | 167439 |
| 10 | Hendricks County | 157848 |
| 11 | Johnson County | 149021 |
| 12 | Monroe County | 144432 |
| 13 | Madison County | 129436 |
| 14 | Delaware County | 115814 |
| 15 | Clark County | 114887 |
| 16 | LaPorte County | 110884 |
| 17 | Vigo County | 107615 |
| 18 | Howard County | 82378 |
| 19 | Bartholomew County | 81516 |
| 20 | Kosciusko County | 78562 |
| 21 | Floyd County | 76559 |
| 22 | Hancock County | 72441 |
| 23 | Morgan County | 69576 |
| 24 | Grant County | 67543 |
| 25 | Wayne County | 67044 |
| 26 | Boone County | 63080 |
| 27 | Warrick County | 61563 |
| 28 | Dearborn County | 49491 |
| 29 | Henry County | 48662 |
| 30 | Noble County | 47514 |
| 31 | Marshall County | 46746 |
| 32 | Lawrence County | 45571 |
| 33 | Shelby County | 44343 |
| 34 | Jackson County | 43892 |
| 35 | DeKalb County | 42511 |
| 36 | Dubois County | 42329 |
| 37 | Harrison County | 39537 |
| 38 | LaGrange County | 38620 |
| 39 | Montgomery County | 38255 |
| 40 | Cass County | 38079 |
| 41 | Knox County | 37784 |
| 42 | Putnam County | 37397 |
| 43 | Huntington County | 36535 |
| 44 | Miami County | 36023 |
| 45 | Adams County | 34962 |
| 46 | Steuben County | 34489 |
| 47 | Gibson County | 33656 |
| 48 | Jasper County | 33498 |
| 49 | Whitley County | 33451 |
| 50 | Daviess County | 32819 |
| 51 | Greene County | 32428 |
| 52 | Clinton County | 32372 |
| 53 | Jefferson County | 32305 |
| 54 | Wabash County | 31883 |
| 55 | Ripley County | 28375 |
| 56 | Wells County | 27854 |
| 57 | Jennings County | 27847 |
| 58 | Washington County | 27784 |
| 59 | Clay County | 26406 |
| 60 | Decatur County | 26338 |
| 61 | Posey County | 25621 |
| 62 | Randolph County | 25139 |
| 63 | White County | 24279 |
| 64 | Scott County | 23670 |
| 65 | Fayette County | 23389 |
| 66 | Franklin County | 22953 |
| 67 | Starke County | 22864 |
| 68 | Jay County | 21135 |
| 69 | Sullivan County | 20874 |
| 70 | Owen County | 20823 |
| 71 | Spencer County | 20644 |
| 72 | Fulton County | 20346 |
| 73 | Carroll County | 19891 |
| 74 | Orange County | 19628 |
| 75 | Perry County | 19323 |
| 76 | Parke County | 16974 |
| 77 | Rush County | 16709 |
| 78 | Fountain County | 16543 |
| 79 | Vermillion County | 15597 |
| 80 | Tipton County | 15250 |
| 81 | Brown County | 15003 |
| 82 | Newton County | 13978 |
| 83 | Pulaski County | 12801 |
| 84 | Pike County | 12399 |
| 85 | Blackford County | 12237 |
| 86 | Switzerland County | 10616 |
| 87 | Crawford County | 10556 |
| 88 | Martin County | 10222 |
| 89 | Benton County | 8698 |
| 90 | Warren County | 8272 |
| 91 | Union County | 7201 |
| 92 | Ohio County | 5888 |