Olney Flag

Olney

County:
Richland County
County Seat:
Yes
Area (mi²):
6.931
State:
Illinois

Olney is a city located in Richland County, Illinois. Olney has a 2025 population of 8,392. It is also the county seat of Richland CountyOlney is currently declining at a rate of -0.71% annually and its population has decreased by -3.44% since the most recent census, which recorded a population of 8,691 in 2020.

The average household income in Olney is $72,237 with a poverty rate of 15.4%.The median age in Olney is 40.7 years: 38 years for males, and 42.2 years for females.

8.4K
Total Population
1,211
Density (mi²)
-60 -0.71%
Growth

Olney 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)