Benton County, Oregon Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Oregon
The population of Benton County, Oregon is 96,359 as of the 2023 American Community Survey, making it the 11th-largest county in Oregon. The median household income is $76,011, the median home value is $481,700, and the median age is 33.8.
The population of Benton County has grown 15.6% since 2010 (85,577 → 98,899), a +1.04% annualized rate.
96,359
Population
+1.04%
Annual growth
143
People / sq mi
$76,011
Median Income
$481,700
Median Home Value
Benton County covers 675 sq mi of land at 142.7 people per square mile.
About Benton County, OR
Educational attainment is the headline number in Benton County: 54.4% of adults 25 and older have a four-year degree. Benton County is a county in Oregon with a population of 96,359. It ranks #11 among counties in Oregon by population.
The typical household earns $76,011 a year, near the US median of $78,538. Poverty runs at 7.8%, below the national 12.4%. Housing is expensive: the median home is worth $481,700, with typical rent around $1,359.
Benton County is among the best-educated US counties: 54.4% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Remote work is widespread — 16.7% of workers stay home, above the national 14.0%, and the average commute runs about 20 minutes each way.
The education numbers are the throughline: a college-heavy population in Benton County usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Benton County Population History (2010-2024)
The county of Benton County had a population of 85,577 in 2010 and 98,899 in 2024, a 15.6% growth over 14 years. The peak was 98,899 in 2024. Average annual growth rate: 1.05%.
98,899
Population (2024)
85,577
Population (2010)
98,899
Peak (2024)
1.05%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 85,577 |
| 2011 | 86,281 |
| 2012 | 86,708 |
| 2013 | 86,228 |
| 2014 | 87,296 |
| 2015 | 88,443 |
| 2016 | 90,053 |
| 2017 | 91,923 |
| 2018 | 92,511 |
| 2019 | 93,114 |
| 2020 | 93,615 |
| 2021 | 93,031 |
| 2022 | 97,406 |
| 2023 | 98,566 |
| 2024 | 98,899 |
Race & Ethnicity
| White | 80.4% |
| Black or African American | 1.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.5% |
| Two or More Races | 0.1% |
Age & Sex
33.8
Median Age
49.8%
Female
50.2%
Male
17.2%
Age 65+
Age Distribution
Children (under 15): 12.7% · Seniors (65+): 17.2%
Income & Poverty
| Median household income | $76,011$-4,415 vs state |
| Mean household income | $102,528 |
| Per-capita income | $42,112 |
| Poverty rate | 7.8%+0.5% vs state |
| Unemployment rate | 4.1% |
| Employment-to-population | 56.8% |
Top Industries by Employment
The largest employment sector in Benton County is professional & business services, accounting for 37.1% of workers.
How residents commute
1.9%
Drive alone
7.4%
Carpool
60.4%
Public transit
16.7%
Work from home
20.0 min
Avg commute
Housing
$481,700+$27,500 vs state
Median home value
$1,359
Median rent
56.0%
Homeownership rate
40,565
Total housing units
94.4%
Occupied
5.6%
Vacant
44.0%
Renter-occupied
Social & access
94.8%
With health insurance
97.2%
With broadband internet
45.1%
Foreign-born
5.4%
Veterans (18+)
12.4%
With a disability
87.1%
Speak language other than English at home
Education
96.0%
High School+
54.4%
Bachelor's+
Largest cities in Oregon
Other counties in Oregon
Part of Oregon
Metro areas in Oregon
County rankings
Frequently Asked Questions
Benton County, Oregon has a population of 96,359 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Oregon. Population density is 143 people per square mile.
The population of Benton County has grown 15.6% since 2010 (85,577 → 98,899), a +1.04% annualized rate.
The median household income in Benton County, Oregon is $76,011, with mean (average) household income of $102,528 and per-capita income of $42,112. 7.8% of residents live below the federal poverty level.
In Benton County, the largest racial and ethnic groups are White (80.4%), Hispanic or Latino (2.5%), Black or African American (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Benton County, Oregon is 33.8 years. Residents are 49.8% female and 50.2% male.
The median home value in Benton County is $481,700 and median monthly rent is $1,359. 56.0% of occupied housing units are owner-occupied. The county has 40,565 total housing units, 5.6% of which are vacant.
The largest employment sector in Benton County, Oregon is professional, scientific, and management services, employing 37.1% of workers. The unemployment rate is 4.1%.
Portland is among the largest cities associated with Benton County, Oregon, with a population of 642,715.
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Full rankings of Oregon counties
Statewide data for Oregon
Population, race, income, age, and trends across Oregon
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.