Jefferson Flag

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 2026 population of 3,296. Jefferson is currently growing at a rate of 0.4% annually but its population has decreased by -0.99% since the most recent census, which recorded a population of 3,329 in 2020.

3.3K
Total Population
3,847
Density (mi²)
13 0.4%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)