
Lebanon
- County:
- Warren County
- County Seat:
- Yes
- Area (mi²):
- 13.176
- State:
- Ohio
Lebanon is a city located in Warren County, Ohio. Lebanon has a 2025 population of 22,255. It is also the county seat of Warren County. Lebanon is currently growing at a rate of 1.26% annually and its population has increased by 6.67% since the most recent census, which recorded a population of 20,864 in 2020.
The average household income in Lebanon is $95,604 with a poverty rate of 6.76%. The median age in Lebanon is 37.3 years: 34.9 years for males, and 40 years for females.