Iowa Census Data Comparison Tool

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Ranking Counties by Diversity Index (last updated July 1, 2021)

There are 20 records sorted in descending order.

The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


County Diversity Index
1. Buena Vista County 68.9
2. Crawford County 66.8
3. Woodbury County 58.0
4. Marshall County 55.5
5. Muscatine County 50.4
6. Tama County 46.1
7. Polk County 45.4
8. Louisa County 43.7
9. Johnson County 43.4
10. Clarke County 41.9
11. Scott County 40.7
12. Black Hawk County 39.0
13. Wapello County 38.0
14. Jefferson County 37.8
15. Wright County 37.1
16. Franklin County 36.4
17. Dallas County 35.8
18. Emmet County 35.3
19. Sioux County 34.5
20. Story County 33.6

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Iowa Census Data Comparison Tool

Compare Iowa July 1, 2021 Data
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