Benton
- County:
- Franklin County
- County Seat:
- Yes
- Area (mi²):
- 5.49
- State:
- Illinois
Benton is a city located in Franklin County, Illinois. Benton has a 2026 population of 6,578. It is also the county seat of Franklin County. Benton is currently declining at a rate of -0.36% annually and its population has decreased by -1.81% since the most recent census, which recorded a population of 6,699 in 2020.