Imperial Beach, United States

Imperial Beach is a residential beach city in San Diego County, California, with a population of 26,324 at the 2010 census. The city is the southernmost city in California and the West Coast of the United States. It is in the South Bay area of San Diego County, 14.1 miles (22.7 km) south of downtown San Diego and 5 miles (8 km) northwest of downtown Tijuana, Mexico.

Imperial Beach is located at 32°34′42″N 117°7′2″W (32.578255, -117.117111) making it the most southwesterly city in the continental United States. According to the United States Census Bureau, the city has a total area of 4.5 square miles (12 km²). 4.2 square miles (11 km²) of it is land and 0.3 square miles (0.78 km²) of it (7.22%) is water. The city occupies the extreme southwest corner of the continental United States: bordered by Playas de Tijuana, Tijuana, Mexico to the south, Coronado, California and the San Diego Bay to the north, San Diego to the east, and the Pacific Ocean to the west.