Reliez Valley, California

Reliez Valley is a census-designated place^[2] in Contra Costa County, California. Reliez Valley sits at an elevation of 299 feet (91 m). The 2020 United States census reported Reliez Valley's population was 3,354.

Reliez Valley
Census-designated place
Reliez Valley Position in California.
Coordinates: 37°56′24″N 122°06′10″W
Country	United States
State	California
County	Contra Costa
Area [1]
• Total	2.363 sq mi (6.120 km2)
• Land	2.363 sq mi (6.120 km2)
• Water	0 sq mi (0 km2)  0%
Elevation	299 ft (91 m)
Population  (2020)
• Total	3,354
• Density	1,400/sq mi (550/km2)
Time zone	UTC-8 (Pacific (PST))
• Summer (DST)	UTC-7 (PDT)
GNIS feature ID	2583120
U.S. Geological Survey Geographic Names Information System: Reliez Valley, California

Geography

According to the United States Census Bureau, the CDP has a total area of 2.363 square miles (6.120 km²), all of it land.

Demographics

Historical population

Census	Pop.	Note	%±
2010	3,101		—
2020	3,354		8.2%
U.S. Decennial Census[3] 2010[4]

Reliez Valley first appeared as a census designated place in the 2010 U.S. Census.^[4]

The 2020 United States census reported that Reliez Valley had a population of 3,354. The population density was 1,421.2 inhabitants per square mile (548.7/km²). The racial makeup of Reliez Valley was 73.0% White, 1.8% African American, 0.2% Native American, 11.7% Asian, 0.2% Pacific Islander, 1.7% from other races, and 11.3% from two or more races. Hispanic or Latino of any race were 8.1% of the population.

The census reported that 98.8% of the population lived in households, 1.1% lived in non-institutionalized group quarters, and 0.1% were institutionalized.

There were 1,251 households, out of which 28.1% included children under the age of 18, 67.3% were married-couple households, 2.7% were cohabiting couple households, 19.7% had a female householder with no partner present, and 10.2% had a male householder with no partner present. 20.6% of households were one person, and 14.5% were one person aged 65 or older. The average household size was 2.65. There were 955 families (76.3% of all households).

The age distribution was 19.9% under the age of 18, 6.1% aged 18 to 24, 15.9% aged 25 to 44, 30.3% aged 45 to 64, and 27.8% who were 65 years of age or older. The median age was 51.0 years. For every 100 females, there were 95.6 males.

There were 1,336 housing units at an average density of 566.1 units per square mile (218.6 units/km²), of which 1,251 (93.6%) were occupied. Of these, 85.5% were owner-occupied, and 14.5% were occupied by renters.^[5][6]

Education

Much of Reliez Valley is in the Lafayette Elementary School District and the Acalanes Union High School District. Other parts are in K-12 districts: some in Martinez Unified School District and some in Mount Diablo Unified School District.^[7]