
Oconee
- County:
- Shelby County
- County Seat:
- No
- Area (mi²):
- 0.356
- State:
- Illinois
Oconee is a village located in Shelby County, Illinois. Oconee has a 2025 population of 136. Oconee is currently declining at a rate of -0.73% annually and its population has decreased by -3.55% since the most recent census, which recorded a population of 141 in 2020.
The average household income in Oconee is $66,459 with a poverty rate of 9.19%. The median age in Oconee is 37.2 years: 39.5 years for males, and 33.2 years for females.