Mason Flag

Mason

County Seat:
No
Area (mi²):
1.287
State:
Illinois

Mason is a town located in Effingham County, Illinois. Mason has a 2025 population of 321 . Mason is currently growing at a rate of 0.31% annually but its population has decreased by -1.23% since the most recent census, which recorded a population of 325 in 2020.

The median household income in Mason is $63,472 with a poverty rate of 24.11%. The median age in Mason is 36.9 years: 38.5 years for males, and 36.3 years for females. For every 100 females there are 95.2 males.

321
Total Population
249
Density (mi²)
1 0.31%
Growth

Mason 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)