Oak Forest Flag

Oak Forest

County:
Cook County
County Seat:
No
Area (mi²):
6.025
State:
Illinois

Oak Forest is a city located in Cook County, Illinois. Oak Forest has a 2026 population of 26,813. Oak Forest is currently growing at a rate of 1.5% annually but its population has decreased by -2.04% since the most recent census, which recorded a population of 27,371 in 2020.

26.8K
Total Population
4,451
Density (mi²)
395 1.5%
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)