Adams County's 2026 population is estimated at 5,198, reflecting a 1.96% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adams County is the 38th largest county in Idaho. The 2010 population was 3,962 and has grown 31.2% since 2010.
Data after 2023 is projected based on recent change
Overall: 53.9 years
Female: 53 years
Male: 54.3 years
There are 3,917 adults, (1,429 of whom are seniors) in Adams County.
Female: 2,314 (48.8%)
Male: 2,430 (51.2%)
The racial composition of Adams County includes 89.17% White, and smaller percentages for Native American, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,230 | 89.17% |
| Two or more races | 378 | 7.97% |
| Native American | 96 | 2.02% |
| Other race | 29 | 0.61% |
| Black or African American | 9 | 0.19% |
| Native Hawaiian or Pacific Islander | 2 | 0.04% |
Adams County 's average per capita income is $42,145. Household income levels show a median of $61,808. The poverty rate stands at 17.92%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $81,394 | - |
| Families | $77,401 | $110,567 |
| Households | $61,808 | $90,162 |
| Non Families | $50,048 | $50,484 |
Average Income
Median Household Income
Poverty Rate
