Quartz Hill, California
Census-designated place
Location of Quartz Hill in Los Angeles County, California
Country	United States
State	California
County	Los Angeles
Area [1]
• Total	3.763 sq mi (9.745 km2)
• Land	3.762 sq mi (9.743 km2)
• Water	0.001 sq mi (0.002 km2)  0.02%
Elevation [2]	2,497 ft (761 m)
Population  (2020)[3]
• Total	11,447
• Density	3,000/sq mi (1,200/km2)
Time zone	UTC-8 (Pacific)
• Summer (DST)	UTC-7 (PDT)
ZIP codes	93536, 93551, 93586
Area code	661
FIPS code	06-59052
GNIS feature IDs	1661271, 2409114

Quartz Hill is a census-designated place (CDP) in Los Angeles County, California, United States. The population was 10,912 at the 2010 census, up from 9,890 at the 2000 census. The name is also shared with the neighboring district areas of its border cities, Palmdale, and Lancaster. Quartz Hill was once home to the Quartz Hill Airport. 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.^[4]

Quartz Hill is located at 34°39′8″N 118°13′14″W / 34.65222°N 118.22056°W / 34.65222; -118.22056 (34.652194, -118.220647).^[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.

This region experiences hot and dry summers; average high temperatures during summer exceed 90 °F. According to the Köppen Climate Classification system, Quartz Hill has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.^[6]

The 2010 United States Census^[9] reported that Quartz Hill had a population of 10,912. The population density was 2,900.1 inhabitants per square mile (1,119.7/km²). The racial makeup of Quartz Hill was 8,218 (75.3%) White (62.3% Non-Hispanic White),^[10] 795 (7.3%) African American, 142 (1.3%) Native American, 303 (2.8%) Asian, 28 (0.3%) Pacific Islander, 947 (8.7%) from other races, and 479 (4.4%) from two or more races. Hispanic or Latino of any race were 2,689 persons (24.6%).

The Census reported that 10,892 people (99.8% of the population) lived in households, 20 (0.2%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.

There were 3,712 households, out of which 1,521 (41.0%) had children under the age of 18 living in them, 1,972 (53.1%) were opposite-sex married couples living together, 573 (15.4%) had a female householder with no husband present, and 286 (7.7%) had a male householder with no wife present. There were 254 (6.8%) unmarried opposite-sex partnerships, and 22 (0.6%) same-sex married couples or partnerships. 692 households (18.6%) were made up of individuals, and 215 (5.8%) had someone living alone who was 65 years of age or older. The average household size was 2.93. There were 2,831 families (76.3% of all households); the average family size was 3.30.

The population was spread out, with 2,917 people (26.7%) under the age of 18, 1,143 people (10.5%) aged 18 to 24, 2,525 people (23.1%) aged 25 to 44, 3,220 people (29.5%) aged 45 to 64, and 1,107 people (10.1%) who were 65 years of age or older. The median age was 36.6 years. For every 100 females, there were 97.4 males. For every 100 females age 18 and over, there were 94.6 males.

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. The homeowner vacancy rate was 2.0%; the rental vacancy rate was 8.5%. 7,426 people (68.1% of the population) lived in owner-occupied housing units and 3,466 people (31.8%) lived in rental housing units.

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.^[10]

As of the census^[11] of 2000, there were 9,890 people, 3,450 households, and 2,639 families residing in the CDP. The population density was 2,591.9 inhabitants per square mile (1,000.7/km²). There were 3,644 housing units at an average density of 955.0 per square mile (368.7/km²). The racial makeup of the CDP was 81.47% White, 4.99% African American, 1.13% Native American, 1.84% Asian, 0.24% Pacific Islander, 6.12% from other races, and 4.21% from two or more races. Hispanic or Latino of any race were 15.28% of the population.

There were 3,450 households, out of which 41.5% had children under the age of 18 living with them, 56.8% were married couples living together, 14.1% had a female householder with no husband present, and 23.5% were non-families. 18.8% of all households were made up of individuals, and 5.8% had someone living alone who was 65 years of age or older. The average household size was 2.86 and the average family size was 3.24.

In the CDP, the population was spread out, with 30.5% under the age of 18, 8.9% from 18 to 24, 27.5% from 25 to 44, 23.7% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 97.8 males. For every 100 females age 18 and over, there were 93.6 males.

The median income for a household in the CDP was $49,098, and the median income for a family was $58,125. Males had a median income of $51,136 versus $33,971 for females. The per capita income for the CDP was $22,140. About 9.1% of families and 11.9% of the population were below the poverty line, including 14.1% of those under age 18 and 13.4% of those age 65 or over.

According to Mapping L.A., German and Irish were the most common ancestries in 2000. Mexico and the Philippines were the most common foreign places of birth.^[12]

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.

Quartz Hill schools include High Desert Bible College, Quartz Hill Elementary School, Sundown Elementary School, Joe Walker Middle School (students in parts of Quartz Hill go to Del Sur Elementary School in Antelope Acres), and Quartz Hill High School, which is part of the Antelope Valley Union High School District.

In the California State Legislature, Quartz Hill is in the 21st Senate District, represented by Democrat Monique Limón, and in the 36th Assembly District, represented by Republican Jeff Gonzalez.^[13]

In the United States House of Representatives, Quartz Hill is in California's 27th congressional district, represented by Republican Mike Garcia.^[14]

The Los Angeles County Department of Health Services operates the Antelope Valley Health Center in Lancaster, serving Quartz Hill.^[15]