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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 1,630 people and two associated neighborhoods, Decatur is the 247th largest community in Tennessee.

The town is relatively quiet, having a combination of lower population density and few of those groups of people who have a tendency to be noisy. For example, Decatur has relatively fewer families with younger children, and/or college students. Combined, this makes Decatur a pretty quiet place to live overall. If you like quiet, you will probably enjoy it here.

The percentage of people in Decatur with college degrees is quite a bit lower than the national average for cities and towns of 21.84%: just 10.54% of people over 25 have a bachelor's degree or advanced degree.

The per capita income in Decatur in 2022 was $26,271, which is lower middle income relative to Tennessee and the nation. This equates to an annual income of $105,084 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 30.41% 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 Irish, Italian, English, German, and Scots-Irish.

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