San Leandro is a suburban city in Alameda County, California, United States. The population was 86,869 in 2014. It is located on the eastern shore of San Francisco Bay, between Oakland to the northwest and Hayward to the southeast.
The San Leandro Hills run above the city to the northeast. In the lower elevations of the city, an upper regionally contained aquifer is located 50 to 100 feet (15 to 30 m) below the surface. At least one deeper aquifer exists approximately 250 feet (75 m) below the surface. Some salt water intrusion has taken place in the San Leandro Cone. Shallow groundwater generally flows to the west, from the foothills toward San Francisco Bay. Shallow groundwater is contaminated in many of the locales of the lower elevation of the city. Contamination by gasoline, volatile organic compounds and some heavy metals has been recorded in a number of these lower elevation areas.
San Leandro is served by the Interstate 880, 580 and 238 freeways connecting to other parts of the Bay Area. East 14th Street is a major thoroughfare in downtown and continues towards East Oakland and Hayward. Davis Street is also another major street that intersects East 14th Street in downtown before heading towards the San Francisco Bay. Public transportation is provided by the Bay Area Rapid Transit BART District with the San Leandro and Bayfair stations servicing the city. San Leandro LINKS provides free bus shuttle service for the western part of the city to the San Leandro BART station and AC Transit is the local bus provider for the city. A senior-oriented local bus service, Flex Shuttle, also operates within the city, as does East Bay Paratransit, which provides shuttle type transportation to residents with disabilities.