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 ascending 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. Adams County 6.4
2. Butler County 7.2
3. Davis County 7.5
4. Van Buren County 7.6
5. Delaware County 7.7
6. Audubon County 7.8
7. Grundy County 7.9
8. Harrison County 8.3
9. Lucas County 8.4
10. Mitchell County 8.8
11. Benton County 9.1
12. Howard County 9.5
13. Keokuk County 10.0
14. Buchanan County 10.0
15. Dickinson County 10.2
16. Clayton County 10.4
17. Wayne County 10.4
18. Madison County 11.0
19. Lyon County 11.1
20. Cedar County 11.5

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Iowa Census Data Comparison Tool

Compare Iowa July 1, 2021 Data
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