Effingham Flag

Effingham

County Seat:
Yes
Area (mi²):
10.703
State:
Illinois

Effingham is a city located in Effingham County, Illinois. Effingham has a 2025 population of 12,233. It is also the county seat of Effingham CountyEffingham is currently declining at a rate of -0.1% annually and its population has decreased by -0.5% since the most recent census, which recorded a population of 12,295 in 2020.

The average household income in Effingham is $80,235 with a poverty rate of 14.82%.The median age in Effingham is 36.9 years: 37.2 years for males, and 36.8 years for females.

12.2K
Total Population
1,143
Density (mi²)
-12 -0.1%
Growth

Effingham 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)