Omaha township
- County:
- Gallatin County
- County Seat:
- No
- Area (mi²):
- 18.603
- State:
- Illinois
Omaha township is located in Gallatin County, Illinois. Omaha township has a 2026 population of 395. Omaha township is currently declining at a rate of -0.5% annually and its population has decreased by -5.73% since the most recent census, which recorded a population of 419 in 2020.
The median age in Omaha township is 37.6 years: 30.5 years for males, and 42.5 years for females. For every 100 females there are 114.5 males.