Olney township Flag

Olney township

County:
Richland County
County Seat:
No
Area (mi²):
47.142
State:
Illinois

Olney township is located in Richland County, Illinois. Olney township has a 2026 population of 9,502. Olney township is currently declining at a rate of -0.96% annually and its population has decreased by -4.85% since the most recent census, which recorded a population of 9,986 in 2020.

The median household income in Olney township is $61,924 with a poverty rate of 13.39%. The median age in Olney township is 41.6 years: 41.4 years for males, and 41.7 years for females. For every 100 females there are 99.5 males.

9.5K
Total Population
202
Density (mi²)
-92 -0.96%
Growth

Olney township Population

Olney township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20269,502-92-0.96%
20259,594-92-0.95%
20249,686-92-0.94%
20239,778-24-0.24%
20229,802-163-1.64%
20219,965-21-0.21%
20209,986-14-0.14%
20199,860-116-1.16%
20189,976-95-0.94%
201710,071120.12%
201610,059-84-0.83%
201510,143-49-0.48%
201410,19260.06%
201310,186-78-0.76%
201210,264-36-0.35%
201110,300-34-0.33%
201010,309-25-0.24%

Median Age

Overall: 41.6 years
Female: 41.7 years
Male: 41.4 years

Olney township Adults

There are 7,600 adults, (2,185 of whom are seniors) in Olney township.

Sex Ratio

Female: 4,935 (50.1%)
Male: 4,912 (49.9%)

Demographics

The racial composition of Olney township includes 92.39% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White9,09892.39%
Two or more races4184.24%
Other race1721.75%
Asian850.86%
Black or African American630.64%
Native American90.09%
Native Hawaiian or Pacific Islander20.02%
Race
Population ↓
Percentage (of total)
Other race940.95%
Two or more races860.87%
White520.53%
Black or African American200.2%
Race
Population ↓
Percentage (of total)
White9,04691.87%
Two or more races3323.37%
Asian850.86%
Other race780.79%
Black or African American430.44%
Native American90.09%
Native Hawaiian or Pacific Islander20.02%

Olney township Marital Status

Economics and Income Statistics

Olney township 's average per capita income is $43,861. Household income levels show a median of $61,924. The poverty rate stands at 13.39%.

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$99,858-
Families$82,072$103,104
Households$61,924$78,006
Non Families$31,429$45,420

$43,861

Average Income

$61,924

Median Household Income

13.39%

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)