Erin is a very small city located in the state of Tennessee. With a population of 1,220 people and two associated neighborhoods, Erin is the 268th largest community in Tennessee.

Residents will find that the city is relatively quiet. This is because it is not over-populated, and it has fewer college students, renters, and young children - all of whom can be noisy at times. So, if you're looking for a relatively peaceful place to live, Erin is worth considering.

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

The education level of Erin citizens, measured as those with bachelor's degrees or advanced degrees, is similar to the national average for all American cities and towns. 19.39% of adults 25 and older in Erin have a college degree.

The per capita income in Erin in 2022 was $30,223, which is middle income relative to Tennessee, and lower middle income relative to the rest of the US. This equates to an annual income of $120,892 for a family of four. However, Erin contains both very wealthy and poor people as well.

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

The most common language spoken in Erin is English. Other important languages spoken here include Spanish and German/Yiddish.