Ranking of Indiana Counties By Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.00M people in Indiana with Unclassified ancestry. Among all Indiana counties, Marion County had the highest population with Unclassified ancestry (258.12K), followed by Lake County (99.66K), and Allen County (93.94K).
The chart and table below shows the top 10 counties with high number of people with Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in Indiana.
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Related Topics: Indiana ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Indiana Counties By Population with Unclassified Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Marion County | 258117 |
| 2 | Lake County | 99656 |
| 3 | Allen County | 93943 |
| 4 | Hamilton County | 77579 |
| 5 | St. Joseph County | 66484 |
| 6 | Elkhart County | 61143 |
| 7 | Hendricks County | 57063 |
| 8 | Tippecanoe County | 55305 |
| 9 | Johnson County | 54533 |
| 10 | Vanderburgh County | 52156 |
| 11 | Monroe County | 43255 |
| 12 | Porter County | 43086 |
| 13 | Vigo County | 40018 |
| 14 | Madison County | 39629 |
| 15 | Delaware County | 36714 |
| 16 | Clark County | 36225 |
| 17 | Morgan County | 31784 |
| 18 | LaPorte County | 31763 |
| 19 | Howard County | 27762 |
| 20 | Bartholomew County | 25269 |
| 21 | Floyd County | 24856 |
| 22 | Hancock County | 24132 |
| 23 | Grant County | 23849 |
| 24 | Kosciusko County | 23718 |
| 25 | Wayne County | 23170 |
| 26 | Boone County | 19840 |
| 27 | Henry County | 18661 |
| 28 | Shelby County | 17442 |
| 29 | Lawrence County | 17418 |
| 30 | Marshall County | 17390 |
| 31 | Putnam County | 17254 |
| 32 | Warrick County | 16164 |
| 33 | Knox County | 16160 |
| 34 | Harrison County | 14641 |
| 35 | Dearborn County | 14212 |
| 36 | Adams County | 13882 |
| 37 | Jackson County | 13825 |
| 38 | Cass County | 13702 |
| 39 | DeKalb County | 13424 |
| 40 | Daviess County | 13383 |
| 41 | Montgomery County | 13224 |
| 42 | Clinton County | 12859 |
| 43 | Noble County | 12739 |
| 44 | Miami County | 12707 |
| 45 | Gibson County | 12594 |
| 46 | Huntington County | 12433 |
| 47 | Greene County | 12335 |
| 48 | Clay County | 11359 |
| 49 | Scott County | 10905 |
| 50 | Jefferson County | 10810 |
| 51 | Washington County | 10640 |
| 52 | Starke County | 10104 |
| 53 | Ripley County | 10051 |
| 54 | Whitley County | 9938 |
| 55 | Jasper County | 9870 |
| 56 | Wells County | 9721 |
| 57 | Wabash County | 9482 |
| 58 | Posey County | 9305 |
| 59 | Owen County | 9112 |
| 60 | Decatur County | 9046 |
| 61 | Steuben County | 9002 |
| 62 | Dubois County | 8907 |
| 63 | Sullivan County | 8771 |
| 64 | White County | 8714 |
| 65 | Carroll County | 8627 |
| 66 | Fayette County | 8619 |
| 67 | Randolph County | 8555 |
| 68 | Jay County | 8487 |
| 69 | Jennings County | 8482 |
| 70 | Franklin County | 8413 |
| 71 | LaGrange County | 8238 |
| 72 | Fulton County | 8198 |
| 73 | Orange County | 8066 |
| 74 | Fountain County | 6256 |
| 75 | Rush County | 6127 |
| 76 | Vermillion County | 6036 |
| 77 | Parke County | 5790 |
| 78 | Brown County | 5351 |
| 79 | Tipton County | 5082 |
| 80 | Perry County | 4961 |
| 81 | Spencer County | 4866 |
| 82 | Blackford County | 4856 |
| 83 | Pulaski County | 4679 |
| 84 | Martin County | 4355 |
| 85 | Newton County | 4102 |
| 86 | Switzerland County | 3776 |
| 87 | Crawford County | 3769 |
| 88 | Pike County | 3461 |
| 89 | Warren County | 3380 |
| 90 | Benton County | 2986 |
| 91 | Union County | 2460 |
| 92 | Ohio County | 2123 |