Quartz Hill is a census-designated place (CDP) in Los Angeles County, California, United States.

The name is also shared with the neighboring district areas of its border cities, Palmdale, and Lancaster.

According to the Greater Antelope Valley Economic Alliance report of 2009, the Palmdale / Lancaster urban area of which Quartz Hill is a part, has a population of 483,998.

[5] According to the United States Census Bureau, the CDP has a total area of 3.7 square miles (9.6 km2), over 99% of it land.

There were 4,018 housing units at an average density of 1,067.9 per square mile (412.3/km2), of which 2,584 (69.6%) were owner-occupied, and 1,128 (30.4%) were occupied by renters.

According to the 2010 United States Census, Quartz Hill had a median household income of $51,821, with 19.1% of the population living below the federal poverty line.

[30] Quartz Hill is located in the High Desert of California north of the Los Angeles area.

As recently as the 1970s the town was largely agricultural, with cash crops of almonds, alfalfa and turkeys.

The almond orchards being crippled by disease and the alfalfa growers having to contend with their water rights being diverted (to a growing Los Angeles) caused a significant shift in the local work force.

The shift mainly was toward the nearby aerospace plants of Lockheed Martin and Rockwell International.

Despite currently containing fewer orchards and farms than in its agricultural heyday, Quartz Hill still celebrates the Almond Blossom Festival every year.