About San Diego

San Diego ( SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles. Historically home to the Kumeyaay people, San Diego is frequently referred to as the "Birthplace of California", as it was the first site visited and settled by Europeans on what is now the U.S. west coast. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, forming the basis for the settlement of Alta California 200 years later. The Presidio and Mission San Diego de Alcalá, founded in 1769, formed the first European settlement in what is now California. In 1821, San Diego became part of the newly declared Mexican Empire, which reformed as the First Mexican Republic two years later. California became part of the U.S. in 1848 following the Mexican–American War and was admitted to the union as a state in 1850. San Diego's main economic engines are military and defense-related activities, tourism, international trade, research, and manufacturing.

Things To Do in San Diego

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4.8 (65743)

Balboa Park

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4.4 (41333)

SeaWorld San Diego

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4.8 (10233)

Cabrillo National Monument

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4.6 (24073)

Seaport Village

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4.5 (6117)

Birch Aquarium at Scripps Institution of Oceanography

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4.8 (6160)

Sunset Cliffs Natural Park

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4.7 (3497)

Maritime Museum of San Diego

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4.8 (13039)

Torrey Pines State Reserve

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4.7 (25172)

Old Town San Diego State Historic Park

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4.6 (1496)

Presidio Park

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4.5 (14700)

Belmont Park

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4.6 (1856)

The San Diego Museum of Art

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4.6 (4150)

San Diego Air & Space Museum

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4.8 (38993)

USS Midway Museum

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4.6 (2758)

San Diego Natural History Museum

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4.7 (21984)

San Diego Zoo Safari Park

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4.7 (2065)

Old Point Loma Lighthouse

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4.7 (47965)

San Diego Zoo

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4.5 (3136)

Fleet Science Center

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4.1 (3764)

Sesame Place San Diego