Jefferson County's estimated 2026 population is 25,648 with a growth rate of 0.22% in the past year according to the most recent United States census data. Jefferson County is the 25th largest county in Oregon. The 2010 population was 21,662 and has seen a growth of 18.4% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jefferson County includes 62.73% White, 13.68% Native American, 8.46% other race, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White (62.73%)
Two or more races (13.71%)
Native American (13.68%)
Other race (8.46%)
Black or African American (0.7%)
Asian (0.58%)
Native Hawaiian or Pacific Islander (0.13%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15,666 | 62.73% |
| Two or more races | 3,424 | 13.71% |
| Native American | 3,417 | 13.68% |
| Other race | 2,112 | 8.46% |
| Black or African American | 176 | 0.7% |
| Asian | 145 | 0.58% |
| Native Hawaiian or Pacific Islander | 33 | 0.13% |
Married
Widowed
Divorced
Separated
Never Married
Jefferson County's average per capita income is $41,858. Household income levels show a median of $73,051. The poverty rate stands at 11.75%.
Name | Median | Mean |
|---|---|---|
| Married Families | $88,225 | - |
| Families | $78,483 | $97,548 |
| Households | $73,051 | $90,220 |
| Non Families | $48,400 | $60,986 |
Average Income
Median Household Income
Poverty Rate
