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is a city in Placer County, California, United States, located in the metropolitan area of Sacramento. As of January 1, 2007 the population was 106,266. Interstate 80 runs through Roseville and State Route 65 bisects the northern part of the city.
According to the United States Census Bureau, the city has a total area of 30.5 square miles (79.0 km²), of which, 30.47 square miles (78.9 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.07%) is water. Several streams flow through Roseville, including Dry Creek, Linda Creek, Secret Ravine and Cirby Creek.