Which state is known for its border with Mexico?

California is known for its border with Mexico due to its extensive southern border along which it shares approximately 140 miles with the northern part of Mexico, specifically the state of Baja California. This border region includes significant points of entry, such as the San Ysidro Port of Entry, which is one of the busiest land border crossings in the world.

The geographical and cultural impacts of this border are significant, influencing trade, immigration, and even local economies. California's large population and cultural diversity, particularly with a notable Mexican heritage, reflect the impact of this border on the state's identity.