341 Area Code 🌍☎️

Fremont is the fourth most populous city in the San Francisco Bay Area with 230,504 residents as of 2020, located in Alameda County's East Bay region closest to Silicon Valley's tech industry. The city originated around Mission San José, founded in 1797 by Spanish Padre Fermín Lasuén at the site of the Ohlone village of Oroysom, and was officially incorporated on January 23, 1956, when five towns - Mission San José, Centerville, Niles, Irvington, and Warm Springs - unified into one city. Named after John C. Frémont, the general who led the American conquest of California from Mexico and later served as Military Governor and U.S. Senator, the city has become a major tech hub with Tesla's manufacturing plant as its largest employer, providing 25,000 jobs as of 2024. The area experienced significant growth during the California Gold Rush following the secularization of its historic Spanish mission in 1834. San Francisco, the fourth-most populous city in California with 826,079 residents in 2025, ranks first among U.S. cities with 200,000+ people by per capita income and second by population density, while its metropolitan area of 4.6 million is the 13th-largest in the nation. Founded on June 29, 1776, by Spanish settlers at the Golden Gate with the Mission San Francisco de Asís, the city experienced explosive growth during the 1849 California gold rush and was largely rebuilt after the devastating 1906 earthquake, hosting the Panama-Pacific International Exposition in 1915. The San Francisco Bay Area generates a $1.332 trillion GDP in 2024 - exceeding all but 17 countries worldwide - driven by leading technology, healthcare, finance, and professional services sectors, including major companies like Salesforce, Uber, Airbnb, OpenAI, and Dropbox. Known globally for iconic landmarks including the Golden Gate Bridge, cable cars, Alcatraz, and distinctive neighborhoods like Chinatown and the Mission District, San Francisco attracts over 21.7 million visitors annually and hosts world-renowned cultural institutions, universities, and sports teams including the Giants and Golden State Warriors. The city emerged as a center of liberal activism through the Summer of Love and gay rights movement, cemented by its role as a major World War II port and subsequent cultural movements including the beatnik and hippie countercultures. Oakland is a city in California's East Bay region of the San Francisco Bay Area and the county seat of Alameda County with a population of 440,646 as of 2020, making it the third most populous city in the Bay Area and eighth in California. As a major West Coast port, Oakland hosts the busiest port in Northern California and the fifth- or sixth-busiest in the United States, serving as the Bay Area's primary trade center. Originally inhabited by the Huchiun people (part of the Ohlone linguistic group) and later colonized by Spanish settlers in 1772, Oakland was incorporated as a charter city on May 4, 1852, following the California Gold Rush, and was selected as the western terminal of the Transcontinental Railroad in 1869. The city's name derives from "Encinar," the Spanish term for oak grove, reflecting the dense oak forests that once covered the area and were logged to build San Francisco; Lake Merritt within the city became the United States' first officially designated wildlife refuge in 1870. Oakland experienced significant growth following the 1906 San Francisco earthquake, which displaced many residents to Oakland, and continued developing through the 20th century via its port, shipyards, and manufacturing industry, though it lost three major North American sports league teams between 2019 and 2023.