Boise County's 2026 population is estimated at 8,623, reflecting a 0.24% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Boise County is the 32nd largest county in Idaho. The 2010 population was 7,005 and has grown 23.1% since 2010.
Data after 2023 is projected based on recent change
Overall: 53.4 years
Female: 50.9 years
Male: 54.9 years
There are 6,999 adults, (2,339 of whom are seniors) in Boise County.
Female: 4,077 (49.3%)
Male: 4,196 (50.7%)
The racial composition of Boise County includes 84.82% White, and smaller percentages for other race, Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,017 | 84.82% |
| Two or more races | 775 | 9.37% |
| Other race | 229 | 2.77% |
| Asian | 125 | 1.51% |
| Native American | 103 | 1.25% |
| Black or African American | 22 | 0.27% |
| Native Hawaiian or Pacific Islander | 2 | 0.02% |
Boise County 's average per capita income is $44,550. Household income levels show a median of $78,774. The poverty rate stands at 7.72%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $92,384 | $100,631 |
| Married Families | $91,585 | - |
| Households | $78,774 | $88,780 |
| Non Families | $46,618 | $57,134 |
Average Income
Median Household Income
Poverty Rate