Trenton is an unincorporated community and census-designated place (CDP) in Henry County, Iowa, United States.

As of the census of 2020,[4] there were 74 people, 36 households, and 25 families residing in the community.

There were 36 housing units at an average density of 78.1 per square mile (30.1/km2).

Hispanic or Latino persons of any race comprised 0.0% of the population.

This article about the geography of Henry County, Iowa is a stub.