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
Benton County is a county in Oregon with a population of 96,359. It ranks #11 among counties in Oregon by population. The median age is 33.8, younger than the national median. The population is 50.2% male and 49.8% female.
The median household income in Benton County is $76,011, near the US median of $74,580. 7.8% of residents live below the federal poverty level. Home values sit at a median of $481,700, with monthly rent averaging $1,359. The homeownership rate of 56.0% is lower than the national rate of 64.8%.
Educational attainment in Benton County reflects 54.4% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 16.7% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 20.0 minutes each way.
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.