Ansan

Ansan
안산시
Korean transcription(s)
 • Hangul안산시
 • Hanja安山市
 • Revised RomanizationAnsan-si
 • McCune–ReischauerAnsan-si
Ansan Culture Square
Choi Yongshin Memorial Hall
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Location in South Korea
Coordinates: 37°19′0″N 126°50′0″E / 37.31667°N 126.83333°E / 37.31667; 126.83333
Country South Korea
RegionGyeonggi Province (Sudogwon)
First mention940
City status1986
Administrative divisions2 gu, 25 dong
Government
 • MayorLee Min-Geun
(People Power Party)
Area
 • Total
149.39 km2 (57.68 sq mi)
Elevation
9 m (30 ft)
Population
 (july 2025)
 • Total
614,772
 • Density4,115.2/km2 (10,658/sq mi)
 • Dialect
Seoul
Postal code
425020-426910
Area code(+82) 31
BirdChinese egret
FlowerRose
TreeGinkgo
Websiteansan.go.kr

Ansan (Korean안산, Korean pronunciation: [an.san]) is a city in Gyeonggi Province, South Korea. It lies southwest of Seoul and is part of the Seoul Metropolitan Area. It is connected to Seoul by rail via Seoul Subway Line 4. It is situated on the Yellow Sea coast and some islands lie within its jurisdiction. The largest and best-known of these is Daebu Island.

Several higher learning institutions are located in Ansan. They include Ansan University, Shin Ansan University, the ERICA campus of Hanyang University, and the Seoul Institute of the Arts. The Korea Transportation Safety Authority, a government agency, has also been headquartered in Ansan since June 3, 2002. With its high number of foreign workers, Wongokbon-dong has been designated as a multicultural area. In 2021, Ansan was selected as the largest residential area for foreigners and it is seeking designation as a special multicultural city. Street play festival is held every year in Ansan.