California's 12th congressional district is located in the northern part of the state, primarily encompassing the city of San Francisco. It is known for its diverse population and vibrant culture, as well as its significant economic contributions, particularly in technology and finance. The district is represented in the U.S. House of Representatives and has historically leaned Democratic. It includes various neighborhoods, parks, and landmarks, making it a unique area within California. The district's boundaries have changed over the years due to redistricting, reflecting shifts in population and political dynamics.