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. There were 1,067 (4.2%) unmarried opposite-sex partnerships, and 187 (0.7%) same-sex married couples or partnerships. 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. 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. Hispanic or Latino of any race were 6,250 persons (8.7%). The population density was 3,991.1 inhabitants per square mile (1,541.0/km 2). The 2010 United States Census reported that San Ramon had a population of 72,148. JSTOR ( May 2011) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "San Ramon, California" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification. It usually burns off by mid-to-late morning. Fog can be infrequent but occurs normally in the western reaches of the city, at the eastern mouth of Crow Canyon, through which marine weather patterns funnel in from the San Francisco Bay via Castro Valley. Its weather is similar to the adjacent cities of Danville, Dublin and Pleasanton. Summers can range from warm to hot and dry, while winters are mild or cool, wet and rather short. San Ramon's weather typifies a Mediterranean climate, seasonal, and moderate. During the drier months the grasses are golden, but with the precipitation of winter and spring, the grasses turn green. The city is predominantly urban and residential with many new housing developments however, much of the land around the city's perimeter regions remains undeveloped, and is covered by grasslands and oak tree orchards. The topography of San Ramon is varied, featuring a mix of the rolling hills of the Diablo Range and the flatter basin of the San Ramon Valley. The smaller Bishop Ranch Regional Preserve straddles San Ramon's western border, located approximately between Interstate 680 and the Alameda County line. The Las Trampas Regional Wilderness borders San Ramon's extreme northwest, at the northern end of Bollinger Canyon. Mount Diablo flanks the city to the northeast and is prominently visible from almost all parts of the city. Mount Diablo and neighborhoods of northern San Ramon as viewed from one of the many trails in the city By 1986, Contra Costa County had obtained the railroad right-of-way and the Iron Horse Regional Trail was established along its path. On February 7, 1909, Southern Pacific extended the line south to Radum (near Pleasanton). The line extended from San Ramon to an unincorporated area known as Avon, east of Martinez, where it connected to the Oakland/Stockton Line. The tracks for the San Ramon Branch Line of the Southern Pacific Railroad were laid down and completed in 1891. In 1850, the first permanent American settlers, Leo and Mary Jane Norris, purchased the northwest corner of Amador's Rancho San Ramon, near the intersection of present-day Bollinger Canyon Road and Crow Canyon Road. Amador added the "San" per Spanish custom. Īmador named San Ramón (Spanish for 'Saint Raymond') not after a real saint but rather after a Native American vaquero who tended mission sheep on the land. In 1834, they were part of the Rancho San Ramon land grant to José María Amador. Sometime around 1797, they were taken by Mission San José for use as grazing land. The lands now occupied by the City of San Ramon were formerly inhabited by Seunen people, an Ohlone/Costanoan group who built their homes near creeks.
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