Eagle Creek township
- County:
- Gallatin County
- County Seat:
- No
- Area (mi²):
- 36.918
- State:
- Illinois
Eagle Creek township is located in Gallatin County, Illinois. Eagle Creek township has a 2026 population of 166. Eagle Creek township is currently growing at a rate of 0.61% annually but its population has decreased by -3.49% since the most recent census, which recorded a population of 172 in 2020.
The median age in Eagle Creek township is 70.5 years: 80.1 years for males, and 69.3 years for females. For every 100 females there are 130.3 males.