Oroville is the county seat of Butte County, California, United States. The population was 15,506 at the 2010 census, up from 13,004 in the 2000 census. Oroville is considered the gateway to Lake Oroville and Feather River recreational areas. In August 2015, the city of Oroville annexed two areas in South Oroville, which have a combined population of 2,725 people. As of January 1, 2016 the U.S. Census Bureau estimated the population of the city to be 17,996, up 1,908 people or 11.9 percent since 2010. The Berry Creek Rancheria of Maidu Indians of California is headquartered in Oroville.
Oroville is located adjacent to State Route 70, and is in close proximity to State Route 99, which connects Butte County with Interstate 5. The City of Chico, California is located about 22 minutes northwest of the city, and the state capitol of Sacramento lies about an hour due south.
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