| County | Mixed Race Population |
| Ada |  10,221 |
| Canyon | 4,651 |
| Kootenai | 3,272 |
| Bonneville | 2,030 |
| Bannock | 1,757 |
| Twin Falls | 1,335 |
| Latah | 951 |
| Nez Perce | 950 |
| Elmore | 894 |
| Bonner | 850 |
| Bingham | 818 |
| Madison | 602 |
| Payette | 567 |
| Jefferson | 400 |
| Gem | 367 |
| Minidoka | 362 |
| Cassia | 349 |
| Benewah | 348 |
| Jerome | 314 |
| Idaho | 310 |
| Gooding | 274 |
| Blaine | 254 |
| Shoshone | 241 |
| Boundary | 217 |
| Owyhee | 206 |
| Fremont | 182 |
| Washington | 181 |
| Clearwater | 172 |
| Franklin | 166 |
| Power | 164 |
| Lemhi | 147 |
| Valley | 143 |
| Boise | 137 |
| Teton | 121 |
| Lewis | 101 |
| Caribou | 81 |
| Lincoln | 79 |
| Adams | 63 |
| Custer | 61 |
| Bear Lake | 53 |
| Butte | 52 |
| Oneida | 38 |
| Camas | 34 |
| Clark | 18 |