Jump City is the location of the Teen Titans' base of operations Titans Tower, and the location where most of the episodes at least partially take place in. Jump City is protected by the Teen Titans against threats of all scales internal or external, yet in How Long is Forever? it is protected solely by Nightwing, a future incarnation of Robin.
Based in America's West Coast, its population appears to rank in the millions, according to the Teen Titans Go! series, and it is portrayed as a modern urbanized center with pizza shops, parks, businesses, houses, islands and busy streets. The creators of the show have stated the city is similar to a 60's style of a city. It also appears to be a combination of Boston and San Francisco, with the city showing styles of both cities.