Ranking of Indiana Counties By Population in 2023
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2023, the Population for Indiana was 6.88M. Among all Indiana counties, Marion County had the highest population (975.65K), followed by Lake County (500.59K), and Allen County (395.13K).
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), 2023 Census.
See this for other years:
Ranking of Indiana Counties By Population in 2023
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| Rank | County | Population |
|---|---|---|
| 1 | Marion County | 975654 |
| 2 | Lake County | 500591 |
| 3 | Allen County | 395131 |
| 4 | Hamilton County | 372588 |
| 5 | St. Joseph County | 273658 |
| 6 | Elkhart County | 206963 |
| 7 | Tippecanoe County | 190482 |
| 8 | Hendricks County | 187141 |
| 9 | Vanderburgh County | 179942 |
| 10 | Porter County | 175289 |
| 11 | Johnson County | 168305 |
| 12 | Monroe County | 141052 |
| 13 | Madison County | 132746 |
| 14 | Clark County | 125686 |
| 15 | Delaware County | 112448 |
| 16 | LaPorte County | 111586 |
| 17 | Vigo County | 106053 |
| 18 | Hancock County | 86176 |
| 19 | Bartholomew County | 84248 |
| 20 | Howard County | 83857 |
| 21 | Floyd County | 80882 |
| 22 | Kosciusko County | 80441 |
| 23 | Boone County | 76195 |
| 24 | Morgan County | 73100 |
| 25 | Grant County | 66303 |
| 26 | Wayne County | 66273 |
| 27 | Warrick County | 66013 |
| 28 | Dearborn County | 51414 |
| 29 | Henry County | 48993 |
| 30 | Noble County | 47508 |
| 31 | Jackson County | 46787 |
| 32 | Marshall County | 46323 |
| 33 | Shelby County | 45281 |
| 34 | Lawrence County | 45034 |
| 35 | DeKalb County | 44177 |
| 36 | Dubois County | 43678 |
| 37 | LaGrange County | 40979 |
| 38 | Harrison County | 40011 |
| 39 | Montgomery County | 38571 |
| 40 | Cass County | 37802 |
| 41 | Putnam County | 37578 |
| 42 | Huntington County | 36818 |
| 43 | Adams County | 36469 |
| 44 | Knox County | 36027 |
| 45 | Miami County | 35477 |
| 46 | Steuben County | 34876 |
| 47 | Whitley County | 34786 |
| 48 | Daviess County | 33801 |
| 49 | Jasper County | 33456 |
| 50 | Jefferson County | 32938 |
| 51 | Gibson County | 32919 |
| 52 | Clinton County | 32879 |
| 53 | Greene County | 31132 |
| 54 | Wabash County | 30762 |
| 55 | Ripley County | 29208 |
| 56 | Wells County | 28636 |
| 57 | Washington County | 28189 |
| 58 | Jennings County | 27614 |
| 59 | Clay County | 26419 |
| 60 | Decatur County | 26395 |
| 61 | Posey County | 25047 |
| 62 | White County | 24775 |
| 63 | Scott County | 24625 |
| 64 | Randolph County | 24360 |
| 65 | Starke County | 23334 |
| 66 | Fayette County | 23256 |
| 67 | Franklin County | 23174 |
| 68 | Owen County | 21775 |
| 69 | Sullivan County | 20822 |
| 70 | Carroll County | 20570 |
| 71 | Fulton County | 20319 |
| 72 | Jay County | 20069 |
| 73 | Spencer County | 20018 |
| 74 | Orange County | 19711 |
| 75 | Perry County | 19291 |
| 76 | Rush County | 16815 |
| 77 | Fountain County | 16674 |
| 78 | Parke County | 16483 |
| 79 | Brown County | 15691 |
| 80 | Vermillion County | 15363 |
| 81 | Tipton County | 15295 |
| 82 | Newton County | 14033 |
| 83 | Pulaski County | 12434 |
| 84 | Pike County | 12089 |
| 85 | Blackford County | 11875 |
| 86 | Crawford County | 10442 |
| 87 | Switzerland County | 9965 |
| 88 | Martin County | 9862 |
| 89 | Benton County | 8761 |
| 90 | Warren County | 8498 |
| 91 | Union County | 6972 |
| 92 | Ohio County | 5993 |
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