Jefferson County, Oregon Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 25th-largest in Oregon
The population of Jefferson County, Oregon is 24,973 as of the 2023 American Community Survey, making it the 25th-largest county in Oregon. The median household income is $73,051, the median home value is $339,200, and the median age is 41.3.
The population of Jefferson County has grown 17.9% since 2010 (21,662 → 25,536), a +1.18% annualized rate.
24,973
Population
+1.18%
Annual growth
14
People / sq mi
$73,051
Median Income
$339,200
Median Home Value
Jefferson County covers 1,782 sq mi of land at 14.0 people per square mile.
About Jefferson County, OR
Jefferson County is a county in Oregon with a population of 24,973. It ranks #25 among counties in Oregon by population. The median age is 41.3, older than the national median. The population is 50.8% male and 49.2% female.
The median household income in Jefferson County is $73,051, near the US median of $74,580. 12.0% of residents live below the federal poverty level. Home values sit at a median of $339,200, with monthly rent averaging $957. The homeownership rate of 71.4% is higher than the national rate of 64.8%.
Educational attainment in Jefferson County reflects 20.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.1 minutes each way.
Jefferson County Population History (2010-2024)
The county of Jefferson County had a population of 21,662 in 2010 and 25,536 in 2024, a 17.9% growth over 14 years. The peak was 25,536 in 2024. Average annual growth rate: 1.19%.
25,536
Population (2024)
21,662
Population (2010)
25,536
Peak (2024)
1.19%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 21,662 |
| 2011 | 21,752 |
| 2012 | 21,835 |
| 2013 | 21,869 |
| 2014 | 22,200 |
| 2015 | 22,540 |
| 2016 | 23,022 |
| 2017 | 23,629 |
| 2018 | 24,085 |
| 2019 | 24,647 |
| 2020 | 24,578 |
| 2021 | 25,100 |
| 2022 | 25,319 |
| 2023 | 25,480 |
| 2024 | 25,536 |
Race & Ethnicity
| White | 62.7% |
| Black or African American | 0.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 18.7% |
| Two or More Races | 0.1% |
Age & Sex
41.3
Median Age
49.2%
Female
50.8%
Male
19.8%
Age 65+
Age Distribution
Children (under 15): 18.9% · Seniors (65+): 19.8%
Income & Poverty
| Median household income | $73,051$-7,375 vs state |
| Mean household income | $90,220 |
| Per-capita income | $32,299 |
| Poverty rate | 12.0%+4.7% vs state |
| Unemployment rate | 4.3% |
| Employment-to-population | 52.2% |
Top Industries by Employment
The largest employment sector in Jefferson County is professional & business services, accounting for 21.9% of workers.
How residents commute
0.2%
Drive alone
3.0%
Carpool
74.9%
Public transit
7.5%
Work from home
26.1 min
Avg commute
Housing
$339,200$-115,000 vs state
Median home value
$957
Median rent
71.4%
Homeownership rate
10,455
Total housing units
82.8%
Occupied
17.2%
Vacant
28.6%
Renter-occupied
Social & access
90.8%
With health insurance
96.3%
With broadband internet
36.2%
Foreign-born
8.1%
Veterans (18+)
17.9%
With a disability
83.0%
Speak language other than English at home
Education
88.7%
High School+
20.0%
Bachelor's+
Largest cities in Oregon
Other counties in Oregon
Part of Oregon
Metro areas in Oregon
County rankings
Frequently Asked Questions
Jefferson County, Oregon has a population of 24,973 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 25th-largest county in Oregon. Population density is 14 people per square mile.
The population of Jefferson County has grown 17.9% since 2010 (21,662 → 25,536), a +1.18% annualized rate.
The median household income in Jefferson County, Oregon is $73,051, with mean (average) household income of $90,220 and per-capita income of $32,299. 12.0% of residents live below the federal poverty level.
In Jefferson County, the largest racial and ethnic groups are White (62.7%), Hispanic or Latino (18.7%), Black or African American (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jefferson County, Oregon is 41.3 years. Residents are 49.2% female and 50.8% male.
The median home value in Jefferson County is $339,200 and median monthly rent is $957. 71.4% of occupied housing units are owner-occupied. The county has 10,455 total housing units, 17.2% of which are vacant.
The largest employment sector in Jefferson County, Oregon is professional, scientific, and management services, employing 21.9% of workers. The unemployment rate is 4.3%.
Portland is among the largest cities associated with Jefferson 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.