Crescent City is the county seat of, and only incorporated city in, Del Norte County, California. Named for the crescent-shaped stretch of sandy beach south of the city, Crescent City had a total population of 7,643 in the 2010 census, up from 4,006 in the 2000 census. The population includes inmates at Pelican Bay State Prison, also within the city limits, and the former census-designated place Crescent City North annexed to the city. The city is also the site of the Redwood National Park headquarters, as well as the historic Battery Point Light. Due to the richness of the local Pacific Ocean waters and the related catch, and ease of access, Crescent City Harbour serves as home port for numerous commercial fishing vessels. European explorers first visited the area now known as Crescent City by ship in the late-1820s. Europeans began moving to the area in the 1850s. Crescent City was incorporated as a city in 1854.