Grand Tower
- County:
- Jackson County
- County Seat:
- No
- Area (mi²):
- 1.248
- State:
- Illinois
Grand Tower is a city located in Jackson County, Illinois. Grand Tower has a 2026 population of 475. Grand Tower is currently growing at a rate of 0.64% annually but its population has decreased by -0.42% since the most recent census, which recorded a population of 477 in 2020.