Wrightwood is a census-designated place in San Bernardino County, California. It sits at an elevation of 5,935 feet (1,809 m). The population was 4,525 at the 2010 census, up from the population of 3,837 at the 2000 census.
Located in a pine covered valley in the San Gabriel Mountains, the area was first developed as cattle ranches in the 19th century by Nathan and Truman Swarthout, then later the main ranch, owned by Sumner Wright was broken up into residential and commercial lots and by the 1920s a community took roots. Early ski enthusiasts discovered the north facing slopes of the San Gabriels above the Swarthout Valley. Until 1937 the ski area, originally known as Big Pines were part of a Los Angeles County Park. As highways were developed coming out of the major routes in the Cajon Pass, Wrightwood became an easy destination, with no serious mountain driving required for city dwellers. Through the last 60 years, Wrightwood has evolved from a vacation community to home to over 4000 full-time residents. Thirty-five years ago, parents realized they wanted their students closer to home and the result was Serrano High School, that serves not only Wrightwood but neighboring communities of Phelan and Pinon Hills. At nearly 6000 feet in elevation, its valley is protected by the Blue Ridge to the South.