San Diego (/ˌsæn diˈeɪɡoʊ/ 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.
Chaoan (TeoAnn/ChaoAn), under the jurisdiction of Chaozhou City, is located in the eastern part of Guangdong Province, in the middle and lower reaches of the Hanjiang River, which runs 96 kilometers from north to south, and connects to the Shantou Special Economic Zone in the south. It is located in the "Golden Triangle" zone of Shantou, Chaozhou and Jieyang. Chaoan District has jurisdiction over 16 towns and 1 state-run forest farm, including 313000 mu of arable land and 1.1 million mu of mountainous and hilly areas, with a total area of 1065.92 square kilometers and 28 community neighborhood committees, with a total population of 1.004 million in 2013. Chaoan is a famous hometown of overseas Chinese, with 700000 Chaoan ethnic Chinese, overseas Chinese and compatriots from Hong Kong, Macao and Taiwan living overseas. Chaoan was founded in the sixth year of Xianhe in the Eastern Jin Dynasty (AD 331).