Castro Valley is located in Alameda County, CA. The population is 60,847, making Castro Valley the 10th largest city in Alameda County.
There are 19 public schools in Castro Valley with an average Homefacts rating of A-. The total crime rate for Castro Valley is moderate , and there are 25 registered sex offenders residing in the city. Unemployment in Castro Valley is moderate and the median home sales price is $0. Detailed and up-to-date Castro Valley property reports are available for any property address.
Cities near Castro Valley include Fairview, Cherryland and Ashland.