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 2026 population of 8,301. It is also the county seat of Richland County. Olney is currently declining at a rate of -0.78% annually and its population has decreased by -4.49% since the most recent census, which recorded a population of 8,691 in 2020.

The median household income in Olney is $59,980 with a poverty rate of 14.2%. The median age in Olney is 41 years: 40.2 years for males, and 41.5 years for females. For every 100 females there are 97.3 males.

8.3K
Total Population
1,198
Density (mi²)
-65 -0.78%
Growth

Olney Population

Olney Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20268,301-65-0.78%
20258,366-65-0.77%
20248,431-79-0.93%
20238,510-21-0.25%
20228,531-142-1.64%
20218,673-18-0.21%
20208,691-12-0.14%
20198,679-103-1.17%
20188,782-82-0.93%
20178,864100.11%
20168,854-73-0.82%
20158,927-43-0.48%
20148,97020.02%
20138,968-67-0.74%
20129,035-33-0.36%
20119,068-7-0.08%
20109,075-40-0.44%
20008,631-33-0.38%
19908,664-362-4.01%
19809,026520.58%
19708,9741942.21%
19608,7801681.95%
19508,6127819.97%
19407,8311,69127.54%
19306,1401,64936.72%
19204,491-520-10.38%
19105,01175117.63%
19004,26042911.2%
18903,8313199.08%
18803,51283231.04%
18702,68000%

Median Age

Overall: 41 years
Female: 41.5 years
Male: 40.2 years

Olney Adults

There are 6,536 adults, (1,853 of whom are seniors) in Olney.

Sex Ratio

Female: 4,348 (50.7%)
Male: 4,229 (49.3%)

Demographics

The racial composition of Olney includes 92.33% 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)
White7,91992.33%
Two or more races3454.02%
Other race1722.01%
Asian670.78%
Black or African American630.73%
Native American90.1%
Native Hawaiian or Pacific Islander20.02%
Race
Population ↓
Percentage (of total)
Other race941.1%
Two or more races740.86%
White520.61%
Black or African American200.23%
Race
Population ↓
Percentage (of total)
White7,86791.72%
Two or more races2713.16%
Other race780.91%
Asian670.78%
Black or African American430.5%
Native American90.1%
Native Hawaiian or Pacific Islander20.02%

Olney Marital Status

Economics and Income Statistics

Olney 's average per capita income is $44,082. Household income levels show a median of $59,980. The poverty rate stands at 14.2%.

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$102,708-
Families$80,192$100,272
Households$59,980$75,260
Non Families$30,742$43,635

$44,082

Average Income

$59,980

Median Household Income

14.2%

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)