Idaho County's estimated 2025 population is 18,396 with a growth rate of 1.39% in the past year according to the most recent United States census data. Idaho County is the 20th largest county in Idaho. The 2010 population was 16,311 and has seen a growth of 12.78% since that time.
Data after 2023 is projected based on recent change
The racial composition of Idaho County includes 91.62% White, and smaller percentages for Native American, other race, Asian, Black or African American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15,686 | 91.62% |
| Two or more races | 805 | 4.7% |
| Native American | 389 | 2.27% |
| Other race | 139 | 0.81% |
| Asian | 85 | 0.5% |
| Black or African American | 16 | 0.09% |
Married
Widowed
Divorced
Separated
Never Married
Idaho County's average per capita income is $40,559. Household income levels show a median of $60,975. The poverty rate stands at 10.81%.
Name | Median | Mean |
|---|---|---|
| Married Families | $79,947 | - |
| Families | $76,074 | $92,634 |
| Households | $60,975 | $77,479 |
| Non Families | $32,349 | $42,788 |
Average Income
Median Household Income
Poverty Rate