Palmdale is a city located in the center of northern Los Angeles County, California, United States.
Palmdale was the first community within the Antelope Valley to incorporate as a city on August 24, 1962; 47 years later, voters approved creating a charter city in November, 2009. Palmdale is separated from Los Angeles by the San Gabriel Mountain range. Palmdale's population was 152,750 at the 2010 census, up from 116,670 as of the 2000 census. Palmdale is the 32nd most populous city in California and ranks 158th nationally. According to the Greater Antelope Valley Economic Alliance report of 2009 the Palmdale / Lancaster, CA Urbanized Area (a US Census Bureau defined term) has a population of 483,998.
Over the last 25 years this city has consistently been ranked in the top 25 fastest growing cities in the United States (based on percentage change). As of the 2010 census, the population was 152,750, sixth largest, and fastest growing city in Los Angeles County. For most of its existence it has had a small population; however for a brief time it was the largest "desert city" in California, but as of the 2010 census, it is now second to the city of Lancaster. With 106 square miles (275 km2) of land in its incorporated boundaries, the city is in the top 100 largest cities in the United States in geographic area. Palmdale is also one of the largest cities in the United States that is not currently served by either an Interstate Freeway or a U.S. Highway. Sierra Highway was at one time labeled as U.S. Highway 6 until the State of California truncated it at Bishop.