About This Place
Trenton is a city in Clinton County, Illinois, United States. The population was 2,610 at the 2000 census.
Trenton is located at 38°36′21″N 89°40′54″W / 38.60583°N 89.68167°W / 38.60583; -89.68167 (38.605943, -89.681725).
According to the United States Census Bureau, the city has a total area of 1.0 square miles (2.5 km²), all of it land.