Benton County, Oregon Demographics 2026
Benton County, Oregon has a population of 96,303, the 11th most populous county in Oregon. The median household income is $77,702 and the median home value is $513,000. The poverty rate is 18.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Benton County Quick Facts
How Benton 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 | 96,359 | 96,303 | -0.1% |
| Median household income | $76,011 | $77,702 | +2.2% |
| Median home value | $481,700 | $513,000 | +6.5% |
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: 46 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Benton County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Corvallis | 59,960 | $65,012 | 24.3% | $502,900 |
| Philomath | 5,642 | $83,672 | 7.2% | $421,300 |
| Adair Village | 1,233 | $99,125 | 3.6% | $448,400 |
| Monroe | 1,102 | $78,646 | 4.8% | $348,700 |
| Alpine | 240 | $58,333 | 0.0% | $477,800 |
| Alsea | 201 | $39,722 | 3.0% | $123,400 |
| Summit | 134 | N/A | 0.0% | N/A |
| Bellfountain | 66 | $52,386 | 15.2% | N/A |
| Kings Valley | 17 | N/A | 0.0% | N/A |
Explore Oregon Rankings
Population Overview
Benton County is located in Oregon with a total population of 96,303. It is the 11th most populous county out of 36 in Oregon. The county encompasses 9 Census-designated places.
Age Demographics
The median age in Benton County is 34.5 years. This is 15% lower than the state median of 40.4 years.
Economy, Income & Housing
The median household income in Benton County is $77,702. This is 6% lower than the state median of $83,011. It is also 4% lower than the national median of $80,734. The poverty rate stands at 18.2%. This is 52% higher than the state poverty rate of 11.9%. The unemployment rate is 7.0%. This is 30% higher than the state rate of 5.4%. The median home value is $513,000. Housing costs are 7% higher than the state median of $477,600. The home-value-to-income ratio of 6.6x suggests that housing affordability is a significant concern for many residents. 57.0% of occupied housing units are owner-occupied. This homeownership rate is 10% lower than the state average of 63.3%.
Race & Ethnicity
The largest racial or ethnic group in Benton County is White (non-Hispanic), making up 76.3% of the population. Hispanic or Latino residents account for 9.4%.
Education
54.2% of residents aged 25 and older hold a bachelor's degree or higher. This places Benton County in the top 10% of all counties in the state for educational attainment. This is 47% higher than the state rate of 36.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.3%. Notably, 26.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All figures for Benton County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Oregon 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 Benton County, Oregon?
Benton County has a population of 96,303, making it the 11th most populous county in Oregon.
What is the median income in Benton County?
The median household income in Benton County is $77,702 with a poverty rate of 18.2%.
How many cities are in Benton County, Oregon?
Benton County contains 9 Census-designated places.