Trenton is a very small city located in the state of Tennessee. With a population of 4,147 people and four associated neighborhoods, Trenton is the 136th largest community in Tennessee.

Being a small city, Trenton does not have a public transit system used by locals to get to and from work.

The citizens of Trenton are slightly less educated than the national average of 21.84% for the average city or town: 13.71% of adults in Trenton have a bachelor's degree or advanced degree

The per capita income in Trenton in 2022 was $20,260, which is low income relative to Tennessee and the nation. This equates to an annual income of $81,040 for a family of four.

Trenton is an extremely ethnically-diverse city. The people who call Trenton home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Trenton residents report their race to be White, followed by Black or African-American. Important ancestries of people in Trenton include English, German, Irish, Norwegian, and European.

The most common language spoken in Trenton is English. Other important languages spoken here include Spanish and Italian.