City of San Jose, California 1777 Key Ring

San Jose is a global city,[23] notable as a center of innovation, for its affluence,[24][25][26] Mediterranean climate, and extremely high cost of living.[27] San Jose's location within the booming high tech industry, as a cultural, political, and economic center has earned the city the nickname "Capital of Silicon Valley". San Jose is one of the wealthiest major cities in the United States and the world, and has the third highest GDP per capita in the world (after Zürich, Switzerland and Oslo, Norway), according to the Brookings Institution.[28] The San Jose Metropolitan Area has the most millionaires and the most billionaires in the United States per capita.