Twin Falls County's estimated 2026 population is 98,719 with a growth rate of 1.13% in the past year according to the most recent United States census data. Twin Falls County is the 5th largest county in Idaho. The 2010 population was 77,547 and has seen a growth of 27.3% since that time.
Data after 2023 is projected based on recent change
The racial composition of Twin Falls County includes 81.6% White, 5.38% other race, and smaller percentages for Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (81.6%)
Two or more races (10.02%)
Other race (5.38%)
Asian (1.34%)
Black or African American (0.85%)
Native American (0.51%)
Native Hawaiian or Pacific Islander (0.29%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 75,172 | 81.6% |
| Two or more races | 9,232 | 10.02% |
| Other race | 4,953 | 5.38% |
| Asian | 1,239 | 1.34% |
| Black or African American | 784 | 0.85% |
| Native American | 474 | 0.51% |
| Native Hawaiian or Pacific Islander | 267 | 0.29% |
Married
Widowed
Divorced
Separated
Never Married
Twin Falls County's average per capita income is $41,859. Household income levels show a median of $65,338. The poverty rate stands at 10.74%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,155 | $107,427 |
| Families | $78,328 | $99,170 |
| Households | $65,338 | $86,618 |
| Non Families | $36,645 | $52,073 |
Average Income
Median Household Income
Poverty Rate