California Census Data Comparison Tool

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Ranking Counties by Diversity Index (last updated July 1, 2020)

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. Nevada County 33.6
2. Plumas County 36.7
3. Sierra County 36.9
4. Trinity County 37.8
5. Calaveras County 42.1
6. Shasta County 42.6
7. Mariposa County 43.1
8. Tuolumne County 43.9
9. El Dorado County 45.5
10. Amador County 46.2
11. Siskiyou County 49.1
12. Modoc County 49.2
13. Humboldt County 51.1
14. Placer County 52.5
15. Marin County 55.2
16. Butte County 55.6
17. San Luis Obispo County 58.1
18. Alpine County 59.4
19. Lake County 61.6
20. Mono County 62.8

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California Census Data Comparison Tool

Compare California July 1, 2020 Data
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