Diridon Station Site A site at 440 West Julian St. is located within the Diridon Station Area Plan in San Jose.

SAN JOSE—Home to many Fortune 500 companies, Silicon Valley is known as a hub of information-technology development and brain power. San Jose ranks as the third-largest city in California and the 10th-largest US city, according to city government stats. Santa Clara County is the largest Bay Area county in terms of population (nearly 2 million) and total employment, including 1 million wage-and-salary jobs, according to a recent Santa Clara County economic forecast.