Jefferson

County:: Marion County
County Seat:: No
Area (mi²):: 0.857
State:: Oregon

Jefferson is a city located in Marion County, Oregon. Jefferson has a 2025 population of 3,221. Jefferson is currently declining at a rate of -0.71% annually and its population has decreased by -3.42% since the most recent census, which recorded a population of 3,335 in 2020.

The average household income in Jefferson is $107,966 with a poverty rate of 8.62%. The median age in Jefferson is 32.3 years: 32.6 years for males, and 32.2 years for females.

Demographics

The racial composition of Jefferson includes 78.23% White, 11.37% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	2,594	78.23%
Other race	377	11.37%
Two or more races	279	8.41%
Black or African American	41	1.24%
Native American	25	0.75%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Jefferson Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Jefferson's average per capita income is $45,855. Household income levels show a median of $90,391. The poverty rate stands at 8.62%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$101,989	-
Families	$95,987	$108,012
Households	$90,391	$107,966
Non Families	$66,029	$91,354

$45,855

Average Income

$90,391

Median Household Income

8.62%

Poverty Rate