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
Housing cost is the defining feature of Jefferson County: the median home is valued at $339,200. With 24,973 residents, Jefferson County is a county in Oregon. It ranks #25 among counties in Oregon by population.
Median household income is $73,051, below the US median of $78,538. Poverty sits at 12.0%, close to the national 12.4%. The median home value is $339,200, with typical rent around $957.
Degree attainment is mid-range for US counties: 20.0% of adults hold a four-year degree, below the national 35.0%. Remote work is below the national 14.0% at 7.5%, and the average commute runs about 26 minutes each way.
High housing values reframe the income picture in Jefferson County — even solid earnings stretch less against home prices and rents at this level.
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.