Twin Falls County, Idaho Demographics 2026
Twin Falls County, Idaho has a population of 93,734, the 5th most populous county in Idaho. The median household income is $67,409 and the median home value is $337,900. The poverty rate is 11.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Twin Falls County Quick Facts
How Twin Falls County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 92,121 | 93,734 | +1.8% |
| Median household income | $65,338 | $67,409 | +3.2% |
| Median home value | $292,700 | $337,900 | +15.4% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 36 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Twin Falls County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Twin Falls | 54,164 | $61,205 | 11.4% | $321,300 |
| Kimberly | 5,111 | $97,799 | 19.3% | $339,400 |
| Buhl | 4,673 | $55,568 | 7.6% | $247,500 |
| Filer | 2,925 | $64,671 | 5.1% | $247,500 |
| Hansen | 1,225 | $50,083 | 29.8% | $220,200 |
| Hollister | 347 | $56,944 | 10.7% | $156,300 |
| Castleford | 183 | $46,667 | 20.2% | N/A |
| Murtaugh | 129 | $48,750 | 10.4% | $253,800 |
Explore Idaho Rankings
Population Overview
Twin Falls County is located in Idaho with a total population of 93,734. It is the 5th most populous county out of 44 in Idaho. The county encompasses 8 Census-designated places.
Age Demographics
The median age in Twin Falls County is 36.1 years. This is 3% lower than the state median of 37.3 years.
Economy, Income & Housing
The median household income in Twin Falls County is $67,409. This is 13% lower than the state median of $77,800. It is also 17% lower than the national median of $80,734. The poverty rate stands at 11.5%. This is 8% higher than the state poverty rate of 10.6%. The unemployment rate is 3.0%. This is 18% lower than the state rate of 3.7%. The median home value is $337,900. Housing costs are 19% lower than the state median of $418,600. The home-value-to-income ratio is 5.0x. 70.5% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 72.1%.
Race & Ethnicity
The largest racial or ethnic group in Twin Falls County is White (non-Hispanic), making up 75.3% of the population. Hispanic or Latino residents account for 18.0%.
Education
23.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 26% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.3%.
Data Sources & Methodology
All figures for Twin Falls County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Idaho and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Twin Falls County, Idaho?
Twin Falls County has a population of 93,734, making it the 5th most populous county in Idaho.
What is the median income in Twin Falls County?
The median household income in Twin Falls County is $67,409 with a poverty rate of 11.5%.
How many cities are in Twin Falls County, Idaho?
Twin Falls County contains 8 Census-designated places.