Westmoreland is a town in Sumner County, Tennessee. The population was 2,093 at the 2000 census and 2,206 at the 2010 census. The town name originates from the historic English county Westmorland, now part of Cumbria. Westmoreland is located at 36°33′41″N 86°14′50″W (36.561306, -86.247123). According to the United States Census Bureau, the town has a total area of 3.8 square miles (9.8 km2), of which 3.8 square miles (9.8 km2) is land and 0.04 square miles (0.10 km2) (0.52%) is water.