Benton is a city located in Franklin County Illinois. Benton has a 2020 population of 8,578. It is also the county seat of Franklin County. Benton is currently declining at a rate of -0.61% annually and its population has decreased by -4.54% since the most recent census, which recorded a population of 8,986 in 2010. Benton reached it's highest population of 8,987 in 2011.
The average household income in Benton is $61,041 with a poverty rate of 17.19%. The median rental costs in recent years comes to $692 per month, and the median house value is $74,900. The median age in Benton is 41.5 years, 38.8 years for males, and 44.6 years for females.