Trenton is a town in Edgefield County, South Carolina, United States.

[6] Bettis Academy and Junior College and Marshfield, a historic plantation house with outbuilding and cemetery, are listed on the National Register of Historic Places.

There were 115 housing units at an average density of 88.5 per square mile (34.2/km2).

32.0% of all households were made up of individuals, and 15.5% had someone living alone who was 65 years of age or older.

About 30.8% of families and 27.1% of the population were below the poverty line, including 41.7% of those under the age of eighteen and 20.0% of those 65 or over.