Greenbrier is a somewhat small town located in the state of Tennessee. With a population of 7,039 people and four associated neighborhoods, Greenbrier is the 89th largest community in Tennessee. Greenbrier has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Greenbrier, where the median household income is $85,174.00.

Greenbrier real estate is some of the most expensive in Tennessee, although Greenbrier house values don't compare to the most expensive real estate in the U.S.

Also of interest is that Greenbrier has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in Greenbrier telecommute to their jobs. Overall, about 13.01% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

In Greenbrier, however, the average commute to work is quite long. On average, people spend 31.98 minutes each day getting to work, which is significantly higher than the national average.

As is often the case in a small town, Greenbrier doesn't have a public transportation system that people use for their commute.

The education level of Greenbrier citizens is a little higher than the average for US cities and towns: 21.22% of adults in Greenbrier have at least a bachelor's degree.

The per capita income in Greenbrier in 2022 was $32,335, which is upper middle income relative to Tennessee, and middle income relative to the rest of the US. This equates to an annual income of $129,340 for a family of four. However, Greenbrier contains both very wealthy and poor people as well.

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

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