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is a city in Roane and Morgan counties in the U.S. state of Tennessee. It is the principal city of and is included in the 'Harriman Micropolitan Statistical Area', which is a component of the Knoxville-Sevierville-La Follette, TN Combined Statistical Area. The population of Harriman was 6,744 at the 2000 census.
According to the United States Census Bureau, the city has a total area of 10.2 square miles (26.5 km²), of which, 10.0 square miles (26.0 km²) of it is land and 0.2 square miles (0.5 km²) of it (1.86%) is water.