Caribou County's 2026 population is estimated at 7,251, reflecting a 0.08% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Caribou County is the 35th largest county in Idaho. The 2010 population was 6,971 and has grown 4.02% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.5 years
Female: 37 years
Male: 38.9 years
There are 5,271 adults, (1,298 of whom are seniors) in Caribou County.
Female: 3,387 (47.3%)
Male: 3,775 (52.7%)
The racial composition of Caribou County includes 91.8% White, 4.19% other race, and smaller percentages for Black or African American, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 6,575 | 91.8% |
| Other race | 300 | 4.19% |
| Two or more races | 266 | 3.71% |
| Black or African American | 11 | 0.15% |
| Native American | 10 | 0.14% |
Caribou County 's average per capita income is $40,493. Household income levels show a median of $68,782. The poverty rate stands at 9.21%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $84,545 | - |
| Families | $82,125 | $98,431 |
| Households | $68,782 | $83,716 |
| Non Families | $41,234 | $51,505 |
Average Income
Median Household Income
Poverty Rate