Uruguay has a population of around 3.4 million people, with Montevideo as its capital city. Spanish is the official language. Some key facts about Uruguay include its flag featuring blue and white horizontal stripes and a yellow sun, common foods like grilled beef and chivito sandwiches, and Carnival celebrations held annually between mid-January and late February. Uruguay also has a primarily Spanish-influenced culture and was founded as a constitutional republic modeled after the United States.