Salem Flag

Salem

County:
Marion County
County Seat:
Yes
Area (mi²):
35.78
State:
Illinois

Salem is located in Marion County, Illinois. Salem has a 2025 population of 923 . It is also the county seat of Marion County . Salem is currently growing at a rate of 0.11% annually but its population has decreased by -2.12% since the most recent census, which recorded a population of 943 in 2020.

The average household income in Salem is $79,300 with a poverty rate of 4.04%. The median age in Salem is 46.4 years: 42.6 years for males, and 47.7 years for females. For every 100 females there are 135.6 males.

923
Total Population
26
Density (mi²)
1 0.11%
Growth

Salem 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)