census-designated place in Alameda County, California, United States
via Wikipedia infobox
Castro Valley is a census-designated place (CDP) in Alameda County, California, United States. At the 2020 census, it was the fourth most populous unincorporated area in California. The population was 66,441 at the 2020 census.
Castro Valley is named after Guillermo Castro, a noted 19th-century Mexican Californio ranchero who owned the land where the community is located.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).