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 and multiracial populations.

Population by Race

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%

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