Jefferson County, OR demographics:
population, income, and more

Total population
25,203
0.9% year-over-year change
Median household income
$76,260/yr
4.4% year-over-year change
Housing units
10,602
1.4% year-over-year change

Jefferson County population

How many people live in Jefferson County

Jefferson County is home to 25,203 residents, according to the most recent Census data. Gender-wise, 52% of Jefferson County locals are male, and 48% are female.

Total population
25,203
0.9% year-over-year change
Gender ratio
Male
52%
13,098
Female
48%
12,105
Value Percent YoY change
Male 13,098 52% 3.2%
Female 12,105 48% -1.4%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Jefferson County is 42, with the population distributed as follows: about 18.6% are children under 15, then 11.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 24.8% of the population, while another 25% fall into the 45 to 64 bracket. Finally, around 19.9% are 65 or older.

Median age
41.5
Age breakdown
Under 15
18.6%
15 to 24
11.6%
25 to 44
24.8%
45 to 64
25%
Over 65
19.9%
Value Percent YoY change
Under 15 4,693 18.6% -0.3%
15 to 24 2,935 11.6% 2.3%
25 to 44 6,260 24.8% 0.9%
45 to 64 6,299 25% 0.6%
Over 65 5,016 19.9% 1.6%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Jefferson County, 92.6% of the population are US-born citizens, while 3.2% have gained naturalized citizenship. At the same time, 4.2% of residents are non-citizens. As for race, 62% of locals are Caucasian, 0.6% are African American and 0.5% have Asian roots. Another 13.6% are Indigenous American, 0.1% are Pacific Islanders, while 8.2% identify as another race. There’s also a share of 15% that includes residents with two or more races.

Citizenship
U.S.-born citizens
92.6%
Non-U.S.-born citizens
3.2%
Non-citizens
4.2%
Value Percent YoY change
U.S.-born citizens 23,341 92.6% 1.0%
Non-U.S.-born citizens 803 3.2% -4.5%
Non-citizens 1,059 4.2% 3.2%
Racial breakdown
White
62%
Black or African American
0.6%
American Indian and Alaska Native
13.6%
Asian
0.5%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
15%
Other
8.2%
Value Percent
White 15,628 62%
Black or African American 142 0.6%
American Indian and Alaska Native 3,439 13.6%
Asian 118 0.5%
Native Hawaiian and other Pacific Islander 35 0.1%
Two or more races 3,785 15%
Other 2,056 8.2%

Households in Jefferson County

A peek inside Jefferson County households

Jefferson County has 8,814 households, with an average of 3 members in each. Of these, 72.4% are families, while the remaining 27.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
8,814
1.8% year-over-year change
Average people per household
3
Non-family households
2,430
Family households
6,384
Value Percent YoY change
Non-family households 2,430 27.6% 5.4%
Family households 6,384 72.4% 0.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Jefferson County

The housing landscape of Jefferson County

Jefferson County's housing consists of 10,602 units, with 73.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.2% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 16.4% of the housing landscape.

Housing units
10,602
1.4% year-over-year change
Housing types
Value Percent
1 unit, detached 7,785 73.4%
1 unit, attached 124 1.2%
2 units 198 1.9%
3 or 4 units 259 2.4%
5 to 9 units 285 2.7%
10 to 19 units 93 0.9%
20 to 49 units 66 0.6%
Mobile home 1,744 16.4%
Boat, RV, van, etc. 48 0.4%
Homes built since 2020
252
-3.5% year-over-year change

The age of buildings in Jefferson County

In Jefferson County, the median construction year is 1991. About 2.6% of homes were built before the 1940s, with another 3.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 18.3% of homes were added from 2000 to 2009, 8.9% between 2010 and 2019, and 2.4% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 274 2.6% 24.6%
Built between 1940 and 1949 386 3.6% 11.6%
Built between 1950 and 1959 448 4.2% -13.0%
Built between 1960 and 1969 758 7.2% -18.4%
Built between 1970 and 1979 1,815 17.1% -6.8%
Built between 1980 and 1989 1,305 12.3% 2.3%
Built between 1990 and 1999 2,484 23.4% 5.5%
Built between 2000 and 2009 1,937 18.3% 2.3%
Built between 2010 and 2019 943 8.9% 32.1%
Built in 2020 or later 252 2.4% -3.5%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Jefferson County occupancy rates

Out of the 8,814 occupied housing units in Jefferson County, 72% are owner-occupied, while 28% are lived in by tenants. Meanwhile, 16.9% of all homes on the local market sit vacant.

Occupied housing units
8,814
1.8% year-over-year change
Occupancy breakdown
Renter occupied
2,467
Owner occupied
6,347
Value Percent YoY
change
Renter occupied 2,467 28% -0.3%
Owner occupied 6,347 72% 2.6%
Unoccupied housing units
16.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Jefferson County housing costs

Housing costs in Jefferson County come to a median of $1,087 per month, while tenants specifically pay a median gross rent of $941.

Median housing costs per month
$1,087/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Jefferson County
$941/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Jefferson County

Jefferson County education at a glance

About 42% of the population in Jefferson County went to high school, while 25.2% pursued college studies. Another 8.9% earned an associate degree and 13.4% hold a bachelor’s. Meanwhile, 6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 857 4.4% -5.6%
High school diploma 8,184 42% 5.0%
College diploma 4,919 25.2% -3.3%
Associate degree 1,740 8.9% -10.9%
Bachelor's degree 2,608 13.4% 4.3%
Graduate degree 1,176 6% 14.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Jefferson County

How much people earn in Jefferson County

The average annual household income in Jefferson County was $93,094 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +3.2% change from the previous year. At the same time, the median income stood at $76,260, reflecting a +4.4% shift over the same period.

Average household income in Jefferson County
$93,094/year
3.2% year-over-year change
Median household income in Jefferson County
$76,260/year
4.4% year-over-year change

Jefferson County income by age

In Jefferson County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $82,118. Those with someone between 45 and 64 in charge, often well established professionally, earn $85,896 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $75,139, while those led by someone over 65, many of whom may be retired, have about $61,312 in earnings. Overall, 86.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $75,139 -19.0%
25 - 44 $82,118 5.0%
45 - 64 $85,896 6.9%
Over 65 $61,312 -2.5%
Above poverty level
20,676
Below poverty level
3,198
Value Percent YoY
change
Above poverty level 20,676 86.6% -1.3%
Below poverty level 3,198 13.4% 15.3%

Employment in Jefferson County

Workforce and job types in Jefferson County

The job market in Jefferson County is powered by 10,227 working residents, spread across a range of industries and roles. 69.6% of the working population are employed in professional or administrative positions, while 30.4% are in hands-on or service-based jobs. Also, 14.2% run their own businesses, 60% are employed by private companies, and 18.3% work in the public sector.

Workforce demographics

Working population
10,227
-1.8% year-over-year change
White collar
7,114
Blue collar
3,113
Value Percent YoY change
White collar 7,114 69.6% -3.1%
Blue collar 3,113 30.4% 1.3%
Employer type
Self employees
14.2%
Private companies
60%
Governmental workers
18.3%
Not for profit companies
7.5%
Value Percent YoY change
Self employees 1,449 14.2% -3.8%
Private companies 6,137 60% 1.6%
Governmental workers 1,872 18.3% -9.3%
Not for profit companies 769 7.5% -4.3%
Unemployment rate
8.1%
3.6% year-over-year change

Available workforce

The unemployment rate in Jefferson County stands at 8.1%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Jefferson County

How people get around in Jefferson County

Commuting methods vary: 88% of residents travel by personal vehicle and 2.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 8,668 88% -3.8%
Taxicab 2 0% 0.0%
Bus or trolleybus 14 0.1% -12.5%
Motorcycle 8 0.1% N/A
Walk 215 2.2% -29.5%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Jefferson County by zipcode?

Zipcode Population Number of households Median income Average income
97711 29 20 $0 $96,200
97730 319 140 $93,750 $106,900
97734 3,618 1,273 $82,429 $98,187
97741 13,663 4,534 $70,983 $86,675
97760 8,702 3,429 $87,603 $118,351
97761 2,955 866 $57,000 $79,019

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FAQs about Jefferson County demographics 

What is the total population of Jefferson County?

Jefferson County has a total population of 25,203 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.9% compared to a year ago.

What is the gender ratio in Jefferson County?

The gender ratio in Jefferson County is as follows:
  • 52% males (13,098 residents)
  • 48% females (12,105 residents)

What is the median age in Jefferson County?

The median age in Jefferson County is 41.5.

What is the age distribution of the population in Jefferson County?

The age distribution in Jefferson County is as follows:
  • Under 15: 18.6% (4,693 residents)
  • Ages 15-24: 11.6% (2,935 residents)
  • Ages 25-44: 24.8% (6,260 residents)
  • Ages 45-64: 25% (6,299 residents)
  • Over 65: 19.9% (5,016 residents)

What is the racial and ethnic makeup of Jefferson County?

The racial and ethnic makeup of Jefferson County is as follows:
  • White: 62% (15,628 residents)
  • Black or African American: 0.6% (142 residents)
  • American Indian and Alaska Native: 13.6% (3,439 residents)
  • Asian: 0.5% (118 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (35 residents)
  • Two or More Races: 15% (3,785 residents)
  • Other: 8.2% (2,056 residents)

What percentage of the population in Jefferson County are U.S.-born citizens?

U.S.-born citizens represent 92.6% of the population in Jefferson County.

How many housing units are there in Jefferson County?

There are 10,602 housing units in Jefferson County, reflecting a +1.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Jefferson County and what is the average household size?

Jefferson County has a total of 8,814 households, with an average of 3 people in each.

What is the median household income in Jefferson County?

Jefferson County has a median household income of $76,260, representing a +4.4% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Jefferson County?

The employment rate is 91.9% in Jefferson County, with a workforce of 10,227 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.6% (7,114 residents)
  • Blue-collar workers: 30.4% (3,113 residents)

Places of employment:
  • Self-employed: 14.2% (1,449 residents)
  • Private companies: 60% (6,137 residents)
  • Governmental workers: 18.3% (1,872 residents)
  • Not-for-profit companies: 7.5% (769 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025