Menlo Park is an affluent city in San Mateo County, California in the United States of America, in the San Francisco Bay Area. 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 (ca 1850)[1] any work done by Thomas Edison (ca 1876) in Menlo Park, New Jersey.