Olio township is located in Woodford County, Illinois. Olio township has a 2026 population of 4,653. Olio township is currently declining at a rate of -0.32% annually and its population has decreased by -1.13% since the most recent census, which recorded a population of 4,706 in 2020.
The median household income in Olio township is $55,708 with a poverty rate of 11.61%. The median age in Olio township is 40.6 years: 32.8 years for males, and 53 years for females. For every 100 females there are 89.8 males.
Data after 2023 is projected based on recent change
Overall: 40.6 years
Female: 53 years
Male: 32.8 years
There are 3,882 adults, (1,128 of whom are seniors) in Olio township.
Female: 2,472 (52.7%)
Male: 2,219 (47.3%)
The racial composition of Olio township includes 93.67% White, and smaller percentages for Two or more races, other race, Black or African American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,394 | 93.67% |
| Two or more races | 124 | 2.64% |
| Other race | 89 | 1.9% |
| Black or African American | 60 | 1.28% |
| Asian | 24 | 0.51% |
Olio township 's average per capita income is $46,280. Household income levels show a median of $55,708. The poverty rate stands at 11.61%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $106,000 | - |
| Families | $94,414 | $108,911 |
| Households | $55,708 | $79,930 |
| Non Families | $27,985 | $50,583 |
Average Income
Median Household Income
Poverty Rate