Galesburg Flag

Galesburg

County:
Knox County
County Seat:
Yes
Area (mi²):
17.76
State:
Illinois

Galesburg is a city located in Knox County, Illinois. Galesburg has a 2025 population of 28,587. It is also the county seat of Knox CountyGalesburg is currently declining at a rate of -0.94% annually and its population has decreased by -4.53% since the most recent census, which recorded a population of 29,944 in 2020.

The average household income in Galesburg is $59,015 with a poverty rate of 20.69%.The median age in Galesburg is 41.2 years: 40.1 years for males, and 43.1 years for females.

28.6K
Total Population
1,610
Density (mi²)
-271 -0.94%
Growth

Galesburg 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)