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Data on this report is based on areas within the legal city boundary, outlined in black on the map. Any additional neighborhoods shown on the map are associated with the city by name and are included for reference only.

Decatur, TN
Real Estate & Demographic Data






Decatur profile


Living in Decatur



Decatur is a very small town located in the state of Tennessee. With a population of 1,584 people and two associated neighborhoods, Decatur is the 247th largest community in Tennessee.

It is a fairly quiet town because there are relatively few of those groups of people who have a tendency to be noisy. (Children, for example, often can't help themselves from being noisy, and being parents ourselves, we know!) Decatur has relatively few families with children living at home, and is quieter because of it. Renters and college students, for their own reasons, can also be noisy. Decatur has few renters and college students. But the biggest reason it is quieter in Decatur than in most places in America, is that there are just simply fewer people living here. If you think trees make good neighbors, Decatur may be for you.

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

The citizens of Decatur have a very low rate of college education: just 8.54% of people over 25 have a bachelor's degree or advanced degree, compared to a national average of 21.84% for all cities.

The per capita income in Decatur in 2022 was $21,183, which is low income relative to Tennessee and the nation. This equates to an annual income of $84,732 for a family of four. However, Decatur contains both very wealthy and poor people as well. Decatur also has one of the higher rates of people living in poverty in the nation, with 35.68% of its population below the federal poverty line.

The people who call Decatur home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Decatur residents report their race to be White, followed by Black or African-American. Important ancestries of people in Decatur include Italian, Irish, English, German, and Eastern European.

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


Real Estate in Popular Decatur Neighborhoods

Zip Codes in Decatur, TN