Colorado 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 51.2%.
| # | County | State | Diversity index |
|---|---|---|---|
| 1 | Arapahoe County | CO | 70.2% |
| 2 | Denver County | CO | 64.1% |
| 3 | El Paso County | CO | 63.3% |
| 4 | Montezuma County | CO | 61.4% |
| 5 | Archuleta County | CO | 57.3% |
| 6 | Weld County | CO | 57.0% |
| 7 | Adams County | CO | 55.4% |
| 8 | Boulder County | CO | 55.4% |
| 9 | Las Animas County | CO | 55.1% |
| 10 | Pueblo County | CO | 54.8% |
| 11 | Morgan County | CO | 54.2% |
| 12 | Summit County | CO | 54.1% |
| 13 | Broomfield County | CO | 53.9% |
| 14 | Montrose County | CO | 53.1% |
| 15 | Eagle County | CO | 53.0% |
| 16 | Alamosa County | CO | 52.4% |
| 17 | Otero County | CO | 52.3% |
| 18 | Garfield County | CO | 52.1% |
| 19 | Jefferson County | CO | 51.7% |
| 20 | Rio Grande County | CO | 51.3% |
| 21 | Douglas County | CO | 51.2% |
| 22 | Conejos County | CO | 50.9% |
| 23 | Prowers County | CO | 50.5% |
| 24 | Yuma County | CO | 50.5% |
| 25 | Kit Carson County | CO | 49.5% |
| 26 | Pitkin County | CO | 47.4% |
| 27 | Moffat County | CO | 47.0% |
| 28 | Larimer County | CO | 47.0% |
| 29 | Delta County | CO | 45.8% |
| 30 | Mesa County | CO | 45.2% |
| 31 | Logan County | CO | 42.7% |
| 32 | Gunnison County | CO | 42.3% |
| 33 | Grand County | CO | 39.8% |
| 34 | Park County | CO | 38.4% |
| 35 | Fremont County | CO | 38.3% |
| 36 | Routt County | CO | 35.9% |
| 37 | Teller County | CO | 33.9% |
| 38 | Chaffee County | CO | 33.4% |
| 39 | Elbert County | CO | 33.0% |
| 40 | Rio Blanco County | CO | 30.1% |