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 26,534. Oak Forest is currently declining at a rate of -0.52% annually and its population has decreased by -3.06% since the most recent census, which recorded a population of 27,371 in 2020.

The median household income in Oak Forest is $91,990 with a poverty rate of 6.52%. The median age in Oak Forest is 40.5 years: 38.8 years for males, and 42.5 years for females. For every 100 females there are 97.4 males.

26.5K
Total Population
4,404
Density (mi²)
-139 -0.52%
Growth

Oak Forest Population

Oak Forest Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202626,534-139-0.52%
202526,673-140-0.52%
202426,8133951.5%
202326,418-88-0.33%
202226,506-358-1.33%
202126,864-507-1.85%
202027,371-104-0.38%
201927,178-210-0.77%
201827,388-274-0.99%
201727,662-242-0.87%
201627,904-184-0.66%
201528,088-133-0.47%
201428,221-35-0.12%
201328,256490.17%
201228,207820.29%
201128,1251030.37%
201028,022600.21%
200028,0511,8487.05%
199026,2031,1634.64%
198025,0407,17040.12%
197017,87000%

Median Age

Overall: 40.5 years
Female: 42.5 years
Male: 38.8 years

Oak Forest Adults

There are 21,122 adults, (4,495 of whom are seniors) in Oak Forest.

Sex Ratio

Female: 13,579 (50.7%)
Male: 13,226 (49.3%)

Demographics

The racial composition of Oak Forest includes 67.99% White, 7.89% Black or African American, 7.27% other race, 5.82% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White18,22567.99%
Two or more races2,93710.96%
Black or African American2,1157.89%
Other race1,9497.27%
Asian1,5615.82%
Native American180.07%
Race
Population ↓
Percentage (of total)
Two or more races2,0977.82%
Other race1,9387.23%
White8603.21%
Black or African American310.12%
Native American60.02%
Race
Population ↓
Percentage (of total)
White17,36564.78%
Black or African American2,0847.77%
Asian1,5615.82%
Two or more races8403.13%
Native American120.04%
Other race110.04%

Oak Forest Marital Status

Economics and Income Statistics

Oak Forest 's average per capita income is $56,441. Household income levels show a median of $91,990. The poverty rate stands at 6.52%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$120,377-
Families$114,182$129,031
Households$91,990$110,832
Non Families$58,633$65,384

$56,441

Average Income

$91,990

Median Household Income

6.52%

Poverty Rate

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)