Thornton Flag

Thornton

County:
Cook County
County Seat:
No
Area (mi²):
46.897
State:
Illinois

Thornton is located in Cook County, Illinois. Thornton has a 2025 population of 148,124. Thornton is currently declining at a rate of -0.8% annually and its population has decreased by -5.81% since the most recent census, which recorded a population of 157,255 in 2020.

The average household income in Thornton is $73,911 with a poverty rate of 20.56%The median age in Thornton is 38.3 years: 35.1 years for males, and 41.1 years for females.

148.1K
Total Population
3,158
Density (mi²)
-1.2K -0.8%
Growth

Thornton 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)