Castro Valley, California
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Castro Valley is a census-designated place (CDP) in Alameda County, California, United States. At the 2010 census, it was the fifth most populous unincorporated area in California. The population was 66,441 at the 2020 census.
Castro Valley, 2022
Castro Valley is named after Don Guillermo Castro, a noted Californio ranchero who owned much of the area.
Interstate 580, with BART tracks in the center, near east Castro Valley
Rowell Rodeo Park
San Lorenzo Creek
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San Lorenzo Creek is a 10.7-mile-long (17.2 km) year-round natural stream flowing through Hayward, California and other neighboring unincorporated communities into San Francisco Bay at the Hayward Regional Shoreline.
View from bridge, downtown Hayward
San Lorenzo Creek Trail entrance