Greenbrier, TN is a city located in Robertson County, Tennessee and has a land area of 51.21 square miles (132.63 km2). The water area for the city is 0.05 square miles or 0.13 km2. There is one unique zip code in Greenbrier, Tennessee and it is 37073. The area code(s) for Greenbrier is 615/629.
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