Blaine County's estimated 2026 population is 25,423 with a growth rate of 0.32% in the past year according to the most recent United States census data. Blaine County is the 17th largest county in Idaho. The 2010 population was 21,296 and has seen a growth of 19.38% since that time.
Data after 2023 is projected based on recent change
The racial composition of Blaine County includes 80.28% White, 10.02% other race, and smaller percentages for Native American, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White (80.28%)
Other race (10.02%)
Two or more races (7.57%)
Native American (1.13%)
Asian (0.52%)
Black or African American (0.48%)
Native Hawaiian or Pacific Islander (0%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 19,732 | 80.28% |
| Other race | 2,463 | 10.02% |
| Two or more races | 1,861 | 7.57% |
| Native American | 278 | 1.13% |
| Asian | 127 | 0.52% |
| Black or African American | 117 | 0.48% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Married
Widowed
Divorced
Separated
Never Married
Blaine County's average per capita income is $43,364. Household income levels show a median of $84,470. The poverty rate stands at 7.45%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,315 | - |
| Families | $92,889 | $135,603 |
| Households | $84,470 | $121,425 |
| Non Families | $63,154 | $94,263 |
Average Income
Median Household Income
Poverty Rate
