Mason Flag

Mason

County:
Warren County
County Seat:
No
Area (mi²):
19.483
State:
Ohio

Mason is a city located in Warren County, Ohio. Mason has a 2026 population of 36,046. Mason is currently growing at a rate of 0.5% annually and its population has increased by 3.33% since the most recent census, which recorded a population of 34,886 in 2020.

36K
Total Population
1,850
Density (mi²)
178 0.5%
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)