Menlo Park is a city in San Mateo County, California in the United States of America. It is located at latitude 37°29' North, longitude 122°9' East. Menlo Park had 30,785 inhabitants as of the 2000 U.S. Census. It should be noted that the origin of the name of Menlo Park, California pre-dates any work done by Thomas Edison in Menlo Park, New Jersey. Menlo Park apartments for rent comparison page shows most up to date rent information on Menlo Park apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.