Benton is a city located in Marshall County Kentucky. It is also the county seat of Marshall County. With a 2020 population of 4,421, it is the 84th largest city in Kentucky and the 5120th largest city in the United States . Benton is currently declining at a rate of -0.47% annually but its population has increased by 1.66% since the most recent census, which recorded a population of 4,349 in 2010. Benton reached it's highest population of 4,533 in 2010. Spanning over 5 miles, Benton has a population density of 982 people per square mile.
The average household income in Benton is $59,592 with a poverty rate of 14.96%. The median rental costs in recent years comes to $722 per month, and the median house value is $133,600. The median age in Benton is 41.2 years, 39.1 years for males, and 42.7 years for females.