Marion Flag

Marion

County:
Marion County
County Seat:
Yes
Area (mi²):
12.964
State:
Ohio

Marion is a city located in Marion County, Ohio. Marion has a 2026 population of 35,576. It is also the county seat of Marion County. Marion is currently growing at a rate of 0.03% annually but its population has decreased by -1.32% since the most recent census, which recorded a population of 36,053 in 2020.

35.6K
Total Population
2,744
Density (mi²)
11 0.03%
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)