
Hannibal
- County:
- Monroe County
- County Seat:
- No
- Area (mi²):
- 1.115
- State:
- Ohio
Hannibal is a CDP located in Monroe County, Ohio. Hannibal has a 2025 population of 118. Hannibal is currently declining at a rate of -14.49% annually and its population has decreased by -60% since the most recent census, which recorded a population of 295 in 2020.
The average household income in Hannibal is $62,376 with a poverty rate of 15.29%. The median age in Hannibal is 66.1 years: 56.6 years for males, and 66.8 years for females.