Original: According to the United States Census Bureau, the city has a total area of 6.1 square miles (15.9 km²), of which,  5.9 square miles (15.3 km²) of it is land and 0.2 square miles (0.6 km²) or 3.75 percent of it is water.
Simplified: The United States Census Bureau says that the city has a total area of 15.9 km² (6.1 mi²). 15.3 km² (5.9 mi²) of it is land and 0.6 km² (0.2 mi²) of it is water.