what county is menlo park, ca
West Menlo Park, California. West Menlo Park is a census-designated place and an Unincorporated community in San Mateo County, California, located between the majority of City of Menlo Park, the Town of Atherton, the Sharon Heights neighborhood of Menlo Park and Stanford University (in Santa Clara County). As of the 2010 census, the community had a population of 3,659.