Trenton, Illinois

Trenton
Trenton in 1938
Location of Trenton in Clinton County, Illinois.
Coordinates: 38°36′30″N 89°41′07″W / 38.60833°N 89.68528°W / 38.60833; -89.68528
CountryUnited States
StateIllinois
CountyClinton
Area
 • Total
1.88 sq mi (4.88 km2)
 • Land1.88 sq mi (4.88 km2)
 • Water0 sq mi (0.00 km2)
Elevation
486 ft (148 m)
Population
 (2020)
 • Total
2,690
 • Density1,428.7/sq mi (551.63/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
62293
Area code618
FIPS code17-75991
GNIS feature ID2397049
Websitetrentonil.org

Trenton is a city in Clinton County, Illinois, United States. The population was 2,690 at the 2020 census. There is, however, a small portion of St. Clair County, Illinois inside Trenton.