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is a city in Davidson and Sumner counties in the U.S. state of Tennessee. Goodlettsville was incorporated as a city in 1958 with a population of just over 3,000 residents; at the 2000 census, the city had a total population of 13,780. Goodlettsville chose to remain autonomous in 1963 when the city of Nashville merged with the government of Davidson County. Therefore, Goodlettsville is only governed by the Metropolitan Government of Nashville and Davidson County in a limited manner.
According to the United States Census Bureau, the city has a total area of 14.1 square miles (36.5 km²), of which, 14.0 square miles (36.2 km²) of it is land and 0.1 square miles (0.3 km²) of it (0.92%) is water.