Elmore County's 2026 population is estimated at 29,775, reflecting a 0.08% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Elmore County is the 13th largest county in Idaho. The 2010 population was 27,125 and has grown 9.77% since 2010.
Data after 2023 is projected based on recent change
Overall: 33.1 years
Female: 35.1 years
Male: 32 years
There are 22,220 adults, (4,338 of whom are seniors) in Elmore County.
Female: 13,665 (46.6%)
Male: 15,656 (53.4%)
The racial composition of Elmore County includes 72.7% White, 4.8% other race, 3.23% Black or African American, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 21,315 | 72.7% |
| Two or more races | 4,466 | 15.23% |
| Other race | 1,406 | 4.8% |
| Black or African American | 948 | 3.23% |
| Asian | 800 | 2.73% |
| Native American | 274 | 0.93% |
| Native Hawaiian or Pacific Islander | 112 | 0.38% |
Elmore County 's average per capita income is $45,432. Household income levels show a median of $65,359. The poverty rate stands at 10.49%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $90,802 | - |
| Families | $80,714 | $94,022 |
| Households | $65,359 | $82,615 |
| Non Families | $42,813 | $55,326 |
Average Income
Median Household Income
Poverty Rate