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is a city in Tuscaloosa County, Alabama, United States. According to 2005 Census Bureau estimates the population is 21,216. It is part of the Tuscaloosa, Alabama Metropolitan Statistical Area.
According to the U.S. Census Bureau, the city has a total area of 14.9 square miles (38.5 km²), of which, 14.6 square miles (37.9 km²) of it is land and 0.2 square miles (0.6 km²) of it (1.48%) is water.
Northport is directly adjacent to the larger city of Tuscaloosa, Alabama, and many residents work in Tuscaloosa or other parts of Tuscaloosa County. Although the two cities do share a land boundary, much of their boundary (and historically all of the boundary) is the Black Warrior River.