San Ramon is a city in Contra Costa County, California, United States, located 34 miles east of San Francisco, and within the San Ramon Valley. San Ramon’s population was estimated as 75,931 in 2017 by the US Census Bureau, making it the 4th largest city in Contra Costa County, behind Richmond, Concord and Antioch.
San Ramon is home to the headquarters of Chevron, 24-Hour Fitness, the West Coast headquarters of AT&T Inc., the Global Software Center of GE, as well as the San Ramon Medical Center. Major annual events include the Art and Wind Festival on Memorial Day weekend and the Run for Education in October.
On April 24, 2001, San Ramon received the title Tree City USA.
The 2010 United States Census reported that San Ramon had a population of 72,148. The population density was 3,991.1 people per square mile (1,541.0/km²). The racial makeup of San Ramon was 38,639 (53.6%) White, 2,043 (2.8%) African American, 205 (0.3%) Native American, 25,713 (35.6%) Asian, 156 (0.2%) Pacific Islander, 1,536 (2.1%) from other races, and 3,856 (5.3%) from two or more races. Hispanic or Latino of any race were 6,250 persons (8.7%).
The Census reported that 72,073 people (99.9% of the population) lived in households, 52 (0.1%) lived in non-institutionalized group quarters, and 23 (0%) were institutionalized.
There were 25,284 households, out of which 11,988 (47.4%) had children under the age of 18 living in them, 16,318 (64.5%) were opposite-sex married couples living together, 1,997 (7.9%) had a female householder with no husband present, 850 (3.4%) had a male householder with no wife present. There were 1,067 (4.2%) unmarried opposite-sex partnerships, and 187 (0.7%) same-sex married couples or partnerships. 4,682 households (18.5%) were made up of individuals and 1,105 (4.4%) had someone living alone who was 65 years of age or older. The average household size was 2.85. There were 19,165 families (75.8% of all households); the average family size was 3.30.
The population was spread out with 21,351 people (29.6%) under the age of 18, 3,557 people (4.9%) aged 18 to 24, 22,798 people (31.6%) aged 25 to 44, 18,815 people (26.1%) aged 45 to 64, and 5,627 people (7.8%) who were 65 years of age or older. The median age was 37.1 years. For every 100 females, there were 96.6 males. For every 100 females age 18 and over, there were 92.4 males.
There were 26,222 housing units at an average density of 1,450.6 per square mile (560.1/km²), of which 25,284 were occupied and 18,056 (71.4%) of them were owner-occupied, and 7,228 (28.6%) were occupied by renters. The homeowner vacancy rate was 1.3%; the rental vacancy rate was 4.0%. 54,705 people (75.8% of the population) lived in owner-occupied housing units and 17,368 people (24.1%) lived in rental housing units.
The median income for a household in the city was $119,297, and the median income for a family was $132,339. Males had a median income of $97,475 versus $70,083 for females. The per capita income for the city was $50,736. About 2.0% of families and 2.8% of the population were below the poverty line, including 2.9% of those under age 18 and 3.5% of those age 65 or over.