Trenton is a city and the county seat of Gilchrist County, Florida, United States. The population was 2,015 as of the 2020 census.

Gilchrist County is a county located in the north central part of the U.S. state of Florida. Organized in 1925 from the western part of Alachua, it is the last county to be formed in the state. As of the 2020 census, the population was 17,864. The county seat is Trenton.