Marion Flag

Marion

County:
Linn County
County Seat:
No
Area (mi²):
17.867
State:
Iowa

Marion is a city located in Linn County, Iowa. Marion has a 2025 population of 42,542 . Marion is currently growing at a rate of 0.99% annually and its population has increased by 2.33% since the most recent census, which recorded a population of 41,574 in 2020.

The median household income in Marion is $87,105 with a poverty rate of 7.03%. The median age in Marion is 40.4 years: 39.2 years for males, and 41.4 years for females. For every 100 females there are 92.7 males.

42.5K
Total Population
2,381
Density (mi²)
415 0.99%
Growth

Marion Population

Demographics

Economics and Income Statistics

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)