| Country | United States |
|---|---|
| State | California |
| County | Contra Costa |
| Population total | 3354 |
| Population as of | 2020 |
| Unit pref | US |
| Area total | 2.360 sq mi |
| Area land | 2.360 sq mi |
| Area water | 0 sq mi |
| Area total | 6.113 km² |
| Area land | 6.113 km² |
| Area water | 0 km² |
| Area water percent | 0 |
| Time zone | Pacific (PST) (UTC-8) |
| Time zone (DST) | PDT (UTC-7) |
| Elevation | 299 ft |
| Coordinates | 37°56′24″N 122°06′10″W |
| GNIS feature ID | 2583120 |
Reliez Valley is a census-designated place[1] 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.
Geography
According to the United States Census Bureau, the CDP has a total area of 2.360 square miles (6.113 km2), all of it land.[2]
Demographics
2020 census
As of the 2020 census, Reliez Valley had a population of 3,354 and a population density of 1,421.2 inhabitants per square mile (548.7 /km2). The median age was 51.0 years. 19.9% of residents were under the age of 18 and 27.8% were 65 years of age or older. For every 100 females, there were 95.6 males, and for every 100 females age 18 and over, there were 90.7 males.[3][4]
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. In addition, 100.0% of residents lived in urban areas and 0.0% lived in rural areas.[3][5]
There were 1,251 households, out of which 28.1% had children under the age of 18. Of all households, 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. About 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).[3][6]
There were 1,336 housing units at an average density of 566.1 /mi2. Of these, 1,251 (93.6%) were occupied and 6.4% were vacant. Of occupied units, 85.5% were owner-occupied and 14.5% were renter-occupied. The homeowner vacancy rate was 1.2%, and the rental vacancy rate was 16.8%.[3][4][7]
| Race | Number | Percent |
|---|---|---|
| White | 2,449 | 73.0% |
| Black or African American | 62 | 1.8% |
| American Indian and Alaska Native | 6 | 0.2% |
| Asian | 393 | 11.7% |
| Native Hawaiian and Other Pacific Islander | 8 | 0.2% |
| Some other race | 58 | 1.7% |
| Two or more races | 378 | 11.3% |
| Hispanic or Latino (of any race) | 271 | 8.1% |
2010 census
Reliez Valley first appeared as a census designated place in the 2010 U.S. census.[8]
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.[9]
References
- ^
- ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 2, 2025.
- ^ "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved April 28, 2026.
- ^ "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved April 28, 2026.
- ^ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved April 28, 2026.
- ^ "Reliez Valley CDP, California; P16: Household Type - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 27, 2025.
- ^ "Reliez Valley CDP, California; DP1: Profile of General Population and Housing Characteristics - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 27, 2025.
- ^ "2010 Census of Population - Population and Housing Unit Counts - California". United States Census Bureau
- ^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Contra Costa County, CA". U.S. Census Bureau. Retrieved 2022-12-25.