Oakdale township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 37.387
- State:
- Illinois
Oakdale township is located in Washington County, Illinois. Oakdale township has a 2026 population of 548. Oakdale township is currently growing at a rate of 0.18% annually and its population has increased by 0.18% since the most recent census, which recorded a population of 547 in 2020.
The median household income in Oakdale township is $74,491 with a poverty rate of 3.68%. The median age in Oakdale township is 38.5 years: 38.6 years for males, and 37 years for females. For every 100 females there are 119.3 males.