Reliez Valley, California

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Reliez Valley
Census-designated place
Reliez Valley is located in California
Reliez Valley
Reliez Valley
Position in California.
Coordinates: 37°56′24″N 122°06′10″W / 37.94000°N 122.10278°W / 37.94000; -122.10278Coordinates: 37°56′24″N 122°06′10″W / 37.94000°N 122.10278°W / 37.94000; -122.10278
Country  United States
State  California
County Contra Costa
 • 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 (2010)
 • Total 3,101
 • Density 1,300/sq mi (510/km2)
Time zone Pacific (PST) (UTC-8)
 • Summer (DST) PDT (UTC-7)
GNIS feature ID 2583120
U.S. Geological Survey Geographic Names Information System: 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 2010 United States census reported Reliez Valley's population was 3,101.


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.


The 2010 United States Census[3] reported that Reliez Valley had a population of 3,101. The population density was 1,312.2 people per square mile (506.7/km²). The racial makeup of Reliez Valley was 2,693 (86.8%) White, 31 (1.0%) African American, 4 (0.1%) Native American, 233 (7.5%) Asian, 2 (0.1%) Pacific Islander, 30 (1.0%) from other races, and 108 (3.5%) from two or more races. Hispanic or Latino of any race were 192 persons (6.2%).

The Census reported that 3,077 people (99.2% of the population) lived in households, 19 (0.6%) lived in non-institutionalized group quarters, and 5 (0.2%) were institutionalized.

There were 1,244 households, out of which 342 (27.5%) had children under the age of 18 living in them, 820 (65.9%) were opposite-sex married couples living together, 57 (4.6%) had a female householder with no husband present, 25 (2.0%) had a male householder with no wife present. There were 33 (2.7%) unmarried opposite-sex partnerships, and 14 (1.1%) same-sex married couples or partnerships. 269 households (21.6%) were made up of individuals and 163 (13.1%) had someone living alone who was 65 years of age or older. The average household size was 2.47. There were 902 families (72.5% of all households); the average family size was 2.86.

The population was spread out with 602 people (19.4%) under the age of 18, 142 people (4.6%) aged 18 to 24, 498 people (16.1%) aged 25 to 44, 1,157 people (37.3%) aged 45 to 64, and 702 people (22.6%) who were 65 years of age or older. The median age was 50.5 years. For every 100 females there were 93.8 males. For every 100 females age 18 and over, there were 91.5 males.

There were 1,300 housing units at an average density of 550.1 per square mile (212.4/km²), of which 1,031 (82.9%) were owner-occupied, and 213 (17.1%) were occupied by renters. The homeowner vacancy rate was 1.1%; the rental vacancy rate was 10.1%. 2,656 people (85.6% of the population) lived in owner-occupied housing units and 421 people (13.6%) lived in rental housing units.


  1. ^ U.S. Census
  2. ^ U.S. Geological Survey Geographic Names Information System: Reliez Valley, California
  3. ^ All data are derived from the United States Census Bureau reports from the 2010 United States Census, and are accessible on-line here. The data on unmarried partnerships and same-sex married couples are from the Census report DEC_10_SF1_PCT15. All other housing and population data are from Census report DEC_10_DP_DPDP1. Both reports are viewable online or downloadable in a zip file containing a comma-delimited data file. The area data, from which densities are calculated, are available on-line here. Percentage totals may not add to 100% due to rounding. The Census Bureau defines families as a household containing one or more people related to the householder by birth, opposite-sex marriage, or adoption. People living in group quarters are tabulated by the Census Bureau as neither owners nor renters. For further details, see the text files accompanying the data files containing the Census reports mentioned above.