Valley County's 2026 population is estimated at 13,071, reflecting a 1.14% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Valley County is the 27th largest county in Idaho. The 2010 population was 9,788 and has grown 33.54% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.9 years
Female: 47 years
Male: 46.6 years
There are 10,063 adults, (3,349 of whom are seniors) in Valley County.
Female: 5,902 (47.6%)
Male: 6,487 (52.4%)
The racial composition of Valley County includes 91.21% White, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 11,300 | 91.21% |
| Two or more races | 763 | 6.16% |
| Other race | 262 | 2.11% |
| Asian | 25 | 0.2% |
| Black or African American | 15 | 0.12% |
| Native Hawaiian or Pacific Islander | 15 | 0.12% |
| Native American | 9 | 0.07% |
Valley County 's average per capita income is $36,954. Household income levels show a median of $76,078. The poverty rate stands at 11.69%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,883 | - |
| Families | $101,618 | $139,743 |
| Households | $76,078 | $109,882 |
| Non Families | $48,077 | $54,223 |
Average Income
Median Household Income
Poverty Rate
