Jefferson Flag

Jefferson

County:
Greene County
County Seat:
Yes
Area (mi²):
6.016
State:
Iowa

Jefferson is a city located in Greene County, Iowa. Jefferson has a 2026 population of 4,148. It is also the county seat of Greene County. Jefferson is currently growing at a rate of 1.1% annually but its population has decreased by -0.72% since the most recent census, which recorded a population of 4,178 in 2020.

4.1K
Total Population
689
Density (mi²)
45 1.1%
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)