Fremont is a city in Alameda County, California. It was incorporated on January 23, 1956, from the merger of five smaller communities: Centerville, Niles, Irvington, Mission San Jose, and Warm Springs. The city is named after American explorer John Charles Frémont, "the Great Pathfinder."

Located in the southeast section of the San Francisco Bay Area in the East Bay region primarily, Fremont had a population at the 2010 census of 214,089. It is the fourth most populous city in the San Francisco Bay Area, and the largest suburb in the metropolis. It is the closest East Bay city to Silicon Valley, and is thus sometimes associated with it.

The area consisting of Fremont, Newark (an enclave of Fremont), and Union City (formed from the communities of Alvarado and DeCoto), is now known as the Tri-City Area.

Nestled at the base of Fremont's rolling hills is the Mission San José, one of the oldest of the historic Spanish missions in California, for which this district is named. The church building that exists today is a re-construction (dedicated in 1985 for daily Mass and tours) of the original 1809 adobe church that was destroyed by the 1868 Hayward-fault earthquake.

en.wikipedia.org/wiki/Fremont,_California