Oskaloosa is located in Clay County, Illinois. Oskaloosa has a 2025 population of 328. Oskaloosa is currently declining at a rate of -0.91% annually and its population has decreased by -4.09% since the most recent census, which recorded a population of 342 in 2020.
The average household income in Oskaloosa is $79,405 with a poverty rate of 26.83%.The median age in Oskaloosa is 30.8 years: 43.1 years for males, and 26.7 years for females.
Data after 2023 is projected based on recent change
The racial composition of Oskaloosa includes 96.14% White, and smaller percentages for and multiracial populations.
White (96.1%)
Two or more races (3.9%)
Race | Population | Percentage (of total) |
---|---|---|
White | 498 | 96.14% |
Two or more races | 20 | 3.86% |
Married
Widowed
Divorced
Separated
Never Married
Oskaloosa's average per capita income is $47,950. Household income levels show a median of $77,614. The poverty rate stands at 26.83%.
Name | Median | Mean |
---|---|---|
Married Families | $102,188 | - |
Households | $77,614 | $79,405 |
Families | $77,614 | $77,848 |
Non Families | - | - |
Average Income
Median Household Income
Poverty Rate