Crescent City is the only incorporated city in Del Norte County, California; it is also the county seat. Named for the crescent-shaped stretch of sandy beach south of the city, Crescent City had a total population of 6,673 in the 2020 census, down from 7,643 in the 2010 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.