California Census Data Comparison Tool

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Ranking Counties by Diversity Index (last updated July 1, 2024)

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. Plumas County 43.6
2. Nevada County 44.5
3. Sierra County 46.6
4. Shasta County 52.0
5. Tuolumne County 52.5
6. Trinity County 52.8
7. Calaveras County 53.3
8. Mariposa County 55.0
9. Siskiyou County 55.6
10. Modoc County 56.3
11. El Dorado County 56.6
12. Amador County 58.0
13. Alpine County 58.3
14. Humboldt County 61.0
15. Placer County 63.5
16. Butte County 66.5
17. Marin County 67.8
18. Mono County 68.5
19. San Luis Obispo County 68.9
20. Lake County 70.1

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California Census Data Comparison Tool

Compare California July 1, 2024 Data
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