It was standardized in
Seoul and
Busan in 1974 and expanded to
Daegu,
Incheon and
Gwangju in 1975.
Daejeon,
Jeonju,
Masan,
Cheongju,
Suwon,
Chuncheon,
Jeju in 1979,
Changwon,
Seongnam,
Cheonan,
Gunsan, Iri (now
Iksan) in 1980, the areas of
Mokpo,
Andong and
Jinju were leveled. However, the standardization policy was abolished in
Chuncheon,
Wonju,
Cheonan,
Mokpo,
Andong,
Gunsan and Iri stations as the debate continued that the standardization policy was ineffective in small urban areas. However, in 2000,
Ulsan Metropolitan City (Distribution),
Gwacheon City (Pyeongchon), Anyang City (Pyeongchon), Gunpo City (Sanbon), Uiwang City, Bucheon City (Middle East), and Goyang City (Silsan) were leveled. Since then,
Yeosu,
South Jeolla Province, and
Suncheon-si in 2005,
Gimhae,
South Gyeongsang Province in 2006, and
Pohang,
North Gyeongsang Province in 2008 implemented high school standardization. In 2013, high school standardization was implemented in Gwangmyeong, Ansan, Uijeongbu and Gangneung, Gangwon Province. Chuncheon, Gangwon Province,
Wonju,
Gunsan,
Iksan,
Seongnam Province, and
Mokpo,
South Jeolla Province Province, have abolished and reintroduced the standardization system. As of 2017, the government has adopted a high school equalization system in 36 regions across the country. Although the standardization system existed in the six metropolitan cities after the introduction of the standardization system, the Sejong Special Self-Governing City, where the central government administrative body was relocated, was introduced in 2017 as part of the resolution of non-preferred schools under the high school option system.
Korea High school standardization area •
Seoul Metropolitan Government: All Regions (1974) •
Busan Metropolitan City: Excluding Kijang-gun (1974) •
Daegu Metropolitan City: Excluding Dalseong-gun (1975) •
Gwangju Metropolitan City: All Regions (1975) •
Incheon Metropolitan City: All areas (1975) (High schools in Ganghwa-gun, Ongjin-gun, Jung-gu, Yeongjong-do, etc. are special district high schools, and therefore belong to non-standardization High School) •
Daejeon Metropolitan City: All Regions (1979) •
Ulsan Metropolitan City: All Regions (2000) •
Sejong Special Self-Governing City: All Regions (2017) •
Southern Gyeonggi Province: Suwon City (1979), Seongnam City (Sujeong-gu, Jungwon-gu (1980), Anyang City, Gwacheon City, Gunpo City, Uiwang City, Bucheon City, Seongnam City (2002), Gwangmyeong City, Ansan City (This year 2013 – Daebu High School is a special district high school, which corresponds to a non-standardized high school.) (In 2015, Baekam High School is a special district high school, so it is a non-standardized high school), •
Northern Gyeonggi Province: Goyang City (2002) Uijeongbu City (2013) •
Gangwon Province: Wonju (1980-1991/2013), Chuncheon (1979-1991/2013), Gangneung (2013) •
North Chungcheong Province: Cheongju City (1979) •
South Chungcheong Province: Cheonan City (1980-1995/2016) •
North Jeolla Province: Gunsan City (1980-1990/2000), Iksan City (1980-1991/2000), Jeonju City (1979) •
South Jeolla Province: Mokpo City (1980-1990/2005), Yeosu City (2005), Suncheon City (2005) •
North Gyeongsang Province: Pohang City (2008) •
South Gyeongsang Province: Gimhae City (2006), Masan City (currently Masan Hoewon-gu, Changwon City, Masan Happo-gu, Masan, 1879), Jinju City (1980), Changwon City (currently Seongsan-gu, Changwon City, Uichang-gu, 1980) •
Jeju Special Self-Governing Province: Jeju City (1979)
Areas where high school standardization policy is abolished •
North Gyeongsang Province: Andong (1980–1990) ==Prestigious high school==