The economy of California is the largest in the United States, with a GDP of $3.2 trillion as of 2019. It is the most populous state and the third-largest by area. It is home to the country's largest and most diverse economy, with industries ranging from agriculture, technology, finance, entertainment, and tourism. California is the leading agricultural producer in the United States, producing more than 400 commodities. It is also a major producer of wine, and is home to Silicon Valley, the world's largest technology hub. California is also a major center for finance, with the headquarters of many of the world's largest banks and financial institutions located in the state.