Alaska counties ranked by the diversity index, the chance that two public school students picked at random from the county belong to different racial or ethnic groups. Counties need at least 3 schools and 1,000 students to qualify. The median ranked county is at 54.5%.
| # | County | State | Diversity index |
|---|---|---|---|
| 1 | Anchorage Municipality | AK | 77.6% |
| 2 | Kodiak Island Borough | AK | 70.0% |
| 3 | Sitka City and Borough | AK | 68.0% |
| 4 | Prince of Wales-Hyder Census Area | AK | 65.3% |
| 5 | Chugach Census Area | AK | 64.1% |
| 6 | Yukon-Koyukuk Census Area | AK | 63.6% |
| 7 | Ketchikan Gateway Borough | AK | 62.9% |
| 8 | Denali Borough | AK | 58.3% |
| 9 | Fairbanks North Star Borough | AK | 57.8% |
| 10 | Matanuska-Susitna Borough | AK | 51.3% |
| 11 | Southeast Fairbanks Census Area | AK | 49.4% |
| 12 | Kenai Peninsula Borough | AK | 48.5% |
| 13 | North Slope Borough | AK | 38.1% |
| 14 | Dillingham Census Area | AK | 31.1% |
| 15 | Nome Census Area | AK | 30.0% |
| 16 | Northwest Arctic Borough | AK | 15.1% |
| 17 | Bethel Census Area | AK | 6.7% |
| 18 | Kusilvak Census Area | AK | 6.4% |