Trenton is a city located in Clinton County Illinois. With a 2020 population of 2,550, it is the 443rd largest city in Illinois and the 6773rd largest city in the United States . Trenton is currently declining at a rate of -0.78% annually and its population has decreased by -6.08% since the most recent census, which recorded a population of 2,715 in 2010. Trenton reached it's highest population of 2,727 in 2011. Spanning over 2 miles, Trenton has a population density of 1,513 people per square mile.
The average household income in Trenton is $82,696 with a poverty rate of 10.03%. The median rental costs in recent years comes to $724 per month, and the median house value is $143,400. The median age in Trenton is 42.6 years, 40.4 years for males, and 43.8 years for females.