Power County, Idaho Demographics 2026
Power County, Idaho has a population of 8,133, the 34th most populous county in Idaho. The median household income is $61,146 and the median home value is $212,900. The poverty rate is 9.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Power County Quick Facts
How Power 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 | 8,018 | 8,133 | +1.4% |
| Median household income | $59,760 | $61,146 | +2.3% |
| Median home value | $191,200 | $212,900 | +11.3% |
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 Power County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| American Falls | 4,712 | $57,783 | 10.8% | $185,600 |
| Arbon Valley | 562 | $61,750 | 6.0% | $273,600 |
| Rockland | 228 | $60,395 | 17.5% | $212,500 |
Explore Idaho Rankings
Population Overview
Power County is located in Idaho with a total population of 8,133. It is the 34th most populous county out of 44 in Idaho. The county encompasses 3 Census-designated places.
Age Demographics
The median age in Power County is 34.6 years. This is 7% lower than the state median of 37.3 years. With 29.8% of the population under 18, Power County has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Power County is $61,146. This is 21% lower than the state median of $77,800. It is also 24% lower than the national median of $80,734. The poverty rate stands at 9.5%. This is 11% lower than the state poverty rate of 10.6%. The unemployment rate is 5.6%. This is 51% higher than the state rate of 3.7%. The median home value is $212,900. Housing costs are 49% lower than the state median of $418,600. The home-value-to-income ratio is 3.5x. 73.7% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 72.1%.
Race & Ethnicity
The largest racial or ethnic group in Power County is White (non-Hispanic), making up 60.5% of the population. Hispanic or Latino residents account for 34.3%. The Hispanic or Latino population is significantly higher than the state average (34.3% vs 13.7%).
Education
15.3% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 52% 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 87.8%.
Data Sources & Methodology
All figures for Power 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 Power County, Idaho?
Power County has a population of 8,133, making it the 34th most populous county in Idaho.
What is the median income in Power County?
The median household income in Power County is $61,146 with a poverty rate of 9.5%.
How many cities are in Power County, Idaho?
Power County contains 3 Census-designated places.