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 County. Olney 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.
Data after 2023 is projected based on recent change
The racial composition of Olney includes 92.5% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 8,199 | 92.5% |
Two or more races | 427 | 4.82% |
Other race | 148 | 1.67% |
Black or African American | 66 | 0.74% |
Asian | 11 | 0.12% |
Native American | 8 | 0.09% |
Native Hawaiian or Pacific Islander | 5 | 0.06% |
Married
Widowed
Divorced
Separated
Never Married
Olney's average per capita income is $43,356. Household income levels show a median of $57,997. The poverty rate stands at 15.4%.
Name | Median | Mean |
---|---|---|
Married Families | $103,861 | - |
Families | $76,069 | $93,925 |
Households | $57,997 | $72,237 |
Non Families | $28,726 | $40,537 |
Average Income
Median Household Income
Poverty Rate