McKinleyville is a coastal town in Humboldt County, California, located just north of Arcata along U.S. Highway 101. Known for its laid-back atmosphere, stunning coastal views, and proximity to both the ocean and redwood forests, McKinleyville offers a mix of outdoor adventures and small-town charm. The population was 16,262 at the 2020 census, up from 15,177 at the time of the 2010 census.