South Korean Legislature Constituencies

South Korea 253 legislative constituencies each electing a single assembly member to the National Assembly by first past the post every four years. In addition 30 members are elected by an additional member system and another 17 are elected by proportional representation
The boundaries are regularly changed by the National Election Commission most recently in 2020.
Seoul.
= Busan =
=Chungbuk Province=
=Chungnam Province=
= Daegu =
= Daejeon=
=Gangwon Province=
=Gyeonggi Province=
=Gyeongbuk Province=
= Gyeongnam Province=
= Gwangju =
=Jeju Island=
=Jeonbuk province=
= Jeonnam=
= Incheon =
=Sejong City=
= Ulsan =