San José is the capital and largest city of Costa Rica, and the capital of San José Province. It is in the center of the country, in the mid-west of the Central Valley. San José is Costa Rica's seat of national government, focal point of political and economic activity, and major transportation hub. San José is simultaneously one of Costa Rica's cantons, with its municipal land area covering 44.62 square kilometers and having within it an estimated population of 352,381 people in 2022. Together with several other cantons of the central valley, including Alajuela, Heredia and Cartago, it forms the country's Greater Metropolitan Area, with an estimated population of over 2 million in 2017. The city is named in honor of Joseph of Nazareth.
Summary from Wikipedia.