The 19th session of the National Assembly of South Korea first convened on 30 May 2012, and was seated until 29 May 2016.[1] Its members were first elected in the 2012 legislative election held on 11 April 2012. It was preceded by the 18th National Assembly of South Korea and succeeded by the 20th National Assembly of South Korea.
, there are four political parties represented in the National Assembly.
| Party | Seats | Percentage | Floor leader | ||||
|---|---|---|---|---|---|---|---|
| Constituency | Proportional | Total | |||||
| Saenuri Party | 118 | 27 | 145 | Won Yoo-chul | |||
| Minjoo Party | 83 | 20 | 103 | Lee Jong-kul | |||
| People's Party | 20 | 0 | 20 | Joo Seung-Yong | |||
| Justice Party | 1 | 4 | 5 | Jeong Jin-hoo | |||
| Minjoo Party | 1 | 0 | 1 | Shin Ki-nam | |||
| Independent | 17 | 0 | 17 | ||||
| Vacant | 6 | 3 | 9 | ||||
| Totals | 246 | 54 | 300 | 100.0% | |||
| 145 | 103 | 20 | 5 | 1 | 17 | 8 | |
| S | M | P | J | I | V | ||
| Date | Constituency | Incumbent | Party | New member | Party | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 9 July 2012 | Proportional representation | Yoon Geum-soon | Unified Progressive | Seo Gi-ho | Unified Progressive | Incumbent resigned on 9 July 2012; replaced by the next member in the Unified Progressive list. | |||
| 10 December 2012 | Proportional representation | Park Geun-hye | Saenuri | Lee Un-ryong | Saenuri | Incumbent resigned on 10 December 2012 to run in the 2012 South Korean presidential election; replaced by the next member in the Saenuri list. | |||
| 24 April 2013 | Nowon C, Seoul | Roh Hoe-chan | Progressive Justice | Ahn Cheol-soo | Independent | Incumbent lost seat on 14 February 2013 for communications law violations. New member by-elected. | |||
| Yeongdo, Busan | Lee Jae-kyun | Saenuri | Kim Moo-sung | Saenuri | Incumbent lost seat on 14 February 2013 for election law violations. New member by-elected. | ||||
| Buyeo–Cheongyang, South Chungcheong Province | Kim Geun-tae | Saenuri | Lee Wan-koo | Saenuri | Incumbent lost seat on 28 February 2013 for election law violations. New member by-elected. | ||||
| 30 October 2013 | Hwaseong A, Gyeonggi Province | Ko Hee-sun | Saenuri | Suh Chung-won | Saenuri | Incumbent died on 25 August 2013 due to lung cancer. New member by-elected. | |||
| Nam, Pohang–Ulleung, North Gyeongsang Province | Kim Hyung-tae | Independent | Park Myung-jae | Saenuri | Incumbent lost seat on 25 July 2013 for election law violations. New member by-elected. | ||||
| 16 January 2014 | Proportional representation | Hyun Young-hee | Independent | Park Yoon-ok | Saenuri | Incumbent's election invalidated on 16 January 2014; replaced by the next member in the Saenuri list. | |||
| 16 June 2014 | Proportional representation | An Chong-bum | Saenuri | Yang Chang-young | Saenuri | Incumbent resigned on 16 June 2014 upon appointment as Senior Presidential Secretary for Economic Affairs; replaced by the next member in the Saenuri list. | |||
| 30 July 2014 | Dongjak B, Seoul | Chung Mong-joon | Saenuri | Na Kyung-won | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Seoul mayoral election. New member by-elected. | |||
| Haeundae–Gijang A, Busan | Suh Byung-soo | Saenuri | Bae Duk-kwang | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Busan mayoral election. New member by-elected. | ||||
| Gwangsan B, Gwangju | Lee Yong-sup | Independent | Kwon Eun-hee | NPAD | Incumbent resigned on 15 May 2014 to run in the 2014 Gwangju mayoral election. New member by-elected. | ||||
| Daedeok, Daejeon | Park Seoung-hyo | Saenuri | Jeong Yong-ki | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Daeju mayoral election. New member by-elected. | ||||
| Nam B, Ulsan | Kim Gi-hyeon | Saenuri | Bak Maeng-woo | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Ulsan mayoral election. New member by-elected. | ||||
| Suwon B, Gyeonggi Province | Shin Jang-yong | Democratic | Chung Mi-kyung | Saenuri | Incumbent lost seat on 16 January 2014 for election law violations. New member by-elected. | ||||
| Suwon C, Gyeonggi Province | Nam Kyung-pil | Saenuri | Kim Yong-nam | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Gyeonggi Province gubernatorial election. New member by-elected. | ||||
| Suwon D, Gyeonggi Province | Kim Jin-pyo | NPAD | Park Kwang-on | NPAD | Incumbent resigned on 15 May 2014 to run in the 2014 Gyeonggi Province gubernatorial election. New member by-elected. | ||||
| Pyeongtaek B, Gyeonggi Province | Lee Jae-young | Saenuri | Yu Eui-dong | Saenuri | Incumbent lost seat on 16 January 2014 for election law violations. New member by-elected. | ||||
| Gimpo, Gyeonggi Province | Yoo Jeong-bok | Saenuri | Hong Chul-ho | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 Incheon mayoral election. New member by-elected. | ||||
| Chungju, North Chungcheong Province | Yoon Jin-sik | Saenuri | Lee Jong-bae | Saenuri | Incumbent resigned on 15 May 2014 to run in the 2014 North Chungcheong Province gubernatorial election. New member by-elected. | ||||
| Seosan–Taean, South Chungcheong Province | Sung Woan-jong | Saenuri | Kim Je-sik | Saenuri | Incumbent lost seat on 26 June 2014 due to elections law violations. New member by-elected. | ||||
| Suncheon–Gokseong, South Jeolla Province | Kim Sun-dong | Unified Progressive | Lee Jung-hyun | Saenuri | Incumbent lost seat on 12 June 2014 for releasing tear gas in the National Assembly chamber. New member by-elected. | ||||
| Naju–Hwasun, South Jeolla Province | Bae Ki-woon | NPAD | Shin Jeung-hoon | NPAD | Incumbent lost seat on 12 June 2014 due to elections law violations. New member by-elected. | ||||
| Damyang–Hampyeong–Yeonggwang–Jangseong, South Jeolla Province | Lee Nak-yon | Democratic | Lee Kai-ho | NPAD | Incumbent resigned on 12 March 2014 to run in the 2014 South Jeolla Province gubernatorial election. New member by-elected. | ||||
| 19 December 2014 | Proportional representation | Lee Seok-ki | Unified Progressive | Seat remained vacant. | Incumbent lost seat on 19 December 2014 after the Constitutional Court dissolved the Unified Progressive Party. | ||||
| Proportional representation | Kim Jae-yeon | Unified Progressive | Seat remained vacant. | Incumbent lost seat on 19 December 2014 after the Constitutional Court dissolved the Unified Progressive Party. | |||||
| 29 April 2015 | Gwanak B, Seoul | Lee Sang-kyu | Unified Progressive | Oh Shin-hwan | Saenuri | Incumbent lost seat on 19 December 2014 after the Constitutional Court dissolved the Unified Progressive Party. New member by-elected. | |||
| Seo–Ganghwa B, Incheon | Ahn Deok-su | Saenuri | Ahn Sang-soo | Saenuri | Incumbent's election invalidated on 12 March 2015. New member by-elected. | ||||
| Seo B, Gwangju | Oh Byung-yoon | Unified Progressive | Chun Jung-bae | Independent | Incumbent lost seat on 19 December 2014 after the Constitutional Court dissolved the Unified Progressive Party. New member by-elected. | ||||
| Jungwon, Seongnam, Gyeonggi Province | Kim Mi-hyul | Unified Progressive | Shin Sang-jin | Saenuri | Incumbent lost seat on 19 December 2014 after the Constitutional Court dissolved the Unified Progressive Party. New member by-elected. | ||||
| 4 August 2015 | Proportional representation | Kim Hyun-sook | Saenuri | Jang Jung-eun | Saenuri | Incumbent resigned on 4 August 2015 following appointment as Senior Presidential Secretary for Employment and Wealth; replaced by the next member in the Saenuri list. | |||
| 20 August 2015 | Proportional representation | Han Myeong-sook | NPAD | Shin Moon-sik | NPAD | Incumbent lost seat on 20 August 2015 due to bribery conviction; replaced by the next member in the NPAD list. | |||
| 12 October 2015 | Gumi A, North Gyeongsang Province | Sim Hag-bong | Independent | Seat remained vacant. | Incumbent resigned on 12 October 2015 due to rape allegations. No by-election held. | ||||
| 12 November 2015 | Jecheon–Danyang, North Chungcheong Province | Song Kwang-ho | Saenuri | Seat remained vacant. | Incumbent lost seat on 12 November 2015 due to bribery conviction. No by-election held. | ||||
| Seogwipo, Jeju Province | Kim Jae-yun | NPAD | Seat remained vacant. | Incumbent lost seat on 12 November 2015 due to bribery conviction. No by-election held. | |||||
| 27 November 2015 | Uiryeong–Haman–Hapcheon, South Gyeongsang Province | Cho Hyun-yong | Saenuri | Seat remained vacant. | Incumbent lost seat on 27 November 2015 due to bribery charges. No by-election held. | ||||
| 24 December 2015 | Jung–Dong–Ongjin, Incheon | Park Sang-eun | Saenuri | Seat remained vacant. | Incumbent lost seat on 24 December 2015 due to bribery conviction. No by-election held. | ||||
| 18 May 2016 | Proportional representation | Hong Eui-rak | Democratic | Seat remained vacant. | Incumbent left the Democratic Party on 18 May 2016. | ||||
| 19 May 2016 | Seocho B, Seoul | Kang Seog-hoon | Saenuri | Seat remained vacant. | Incumbent resigned on 19 May 2016 following appointment as Senior Presidential Secretary for Economic Affairs. No by-election held. | ||||
| 19 June 2016 | Proportional representation | Kang Eun-hee | Saenuri | Jung Youn-suk | Saenuri | Incumbent resigned on 19 June 2016 following appointment as Minister of Gender Equality and Family; replaced by the next member in the Saenuri list. | |||
| Date | Member | Constituency | Old party | New party | Notes | |||
|---|---|---|---|---|---|---|---|---|
| 18 April 2012 | Kim Hyung-tae | Nam, Pohang–Ulleung, North Gyeongsang Province | Saenuri | Independent | Left the Saenuri Party. | |||
| 20 April 2012 | Moon Dae-sung | Saha A, Busan | Saenuri | Independent | Left the Saenuri Party. | |||
| 29 May 2012 | 5 members | – | Liberty Forward | Advancement Unification | Liberty Forward Party renamed as the Advancement Unification Party. | |||
| 2 July 2012 | Kang Chang-hee | Jung, Daejeon | Saenuri | Independent | Became Speaker of the National Assembly. | |||
| 27 July 2012 | Yu Sung-yup | Jeongeup, North Jeolla Province | Independent | Democratic United | Rejoined the Democratic United Party. | |||
| 16 August 2012 | Hyun Young-hee | Proportional representation | Saenuri | Independent | Expelled from the Saenuri Party. | |||
| 30 August 2012 | Lee Myoung-su | Asan, South Chungcheong Province | Advancement Unification | Saenuri | Left the Advancement Unification Party to join the Saenuri Party. | |||
| 7 September 2012 | Jeong Jin-hoo | Proportional representation | Unified Progressive | Independent | Left the Unified Progressive Party. | |||
| Kim Je-nam | Proportional representation | Unified Progressive | Independent | |||||
| Park Won-suk | Proportional representation | Unified Progressive | Independent | |||||
| Seo Gi-ho | Proportional representation | Unified Progressive | Independent | |||||
| 13 September 2012 | Roh Hoe-chan | Nowon C, Seoul | Unified Progressive | Independent | Left the Unified Progressive Party. | |||
| Sim Sang-jung | Deogyang A, Goyang, Gyeonggi Province | Unified Progressive | Independent | |||||
| Kang Dong-won | Namwon–Sunchang, North Jeolla Province | Unified Progressive | Independent | |||||
| 9 October 2012 | Song Ho-chang | Uiwang–Gwacheon, Gyeonggi Province | Democratic United | Independent | Left the Democratic United Party. | |||
| 21 October 2012 | Jeong Jin-hoo | Proportional representation | Independent | Progressive Justice | Formed the Progressive Justice Party. | |||
| Kim Je-nam | Proportional representation | Independent | Progressive Justice | |||||
| Park Won-suk | Proportional representation | Independent | Progressive Justice | |||||
| Seo Gi-ho | Proportional representation | Independent | Progressive Justice | |||||
| Roh Hoe-chan | Nowon C, Seoul | Independent | Progressive Justice | |||||
| Sim Sang-jung | Deogyang A, Goyang, Gyeonggi Province | Independent | Progressive Justice | |||||
| Kang Dong-won | Namwon–Sunchang, North Jeolla Province | Independent | Progressive Justice | |||||
| 5 November 2012 | Kim Han-pyo | Geoje, South Gyeongsang Province | Independent | Saenuri | Joined the Saenuri Party. | |||
| 7 November 2012 | 4 members | – | Advancement Unification | Saenuri | Advancement Unification Party merged with the Saenuri Party. | |||
| 2 May 2013 | Kang Dong-won | Namwon–Sunchang, North Jeolla Province | Progressive Justice | Independent | Left the Progressive Justice Party. | |||
| 4 May 2013 | 127 members | – | Democratic United | Democratic | Democratic United Party renamed as the Democratic Party. | |||
| 21 July 2013 | 5 members | – | Progressive Justice | Justice | Progressive Justice Party renamed as the Justice Party. | |||
| 20 February 2014 | Moon Dae-sung | Saha A, Busan | Independent | Saenuri | Rejoined the Saenuri Party. | |||
| 26 March 2014 | 126 members | – | Democratic | NPAD | Democratic Party merged into the New Politics Alliance for Democracy. | |||
| Ahn Cheol-soo | Nowon C, Seoul | Independent | NPAD | Joined the New Politics Alliance for Democracy. | ||||
| Park Joo-sun | Dong, Gwangju | Independent | NPAD | |||||
| Song Ho-chang | Uiwang–Gwacheon, Gyeonggi Province | Independent | NPAD | |||||
| Kang Dong-won | Namwon–Sunchang, North Jeolla Province | Independent | NPAD | |||||
| 2 May 2014 | Lee Yong-sup | Gwangsan B, Gwangju | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 29 May 2014 | Chung Ui-hwa | Jung–Dong, Busan | Saenuri | Independent | Became Speaker of the National Assembly. | |||
| Kang Chang-hee | Jung, Daejeon | Independent | Saenuri | Rejoined the Saenuri Party after term as Speaker. | ||||
| 18 June 2014 | Yoo Seung-woo | Icheon, Gyeonggi Province | Saenuri | Independent | Expelled from the Saenuri Party. | |||
| 3 August 2015 | Sim Hag-bong | Gumi A, North Gyeongsang Province | Saenuri | Independent | Left the Saenuri Party. | |||
| 10 August 2015 | Park Ki-choon | Namyangju B, Gyeonggi Province | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 23 September 2015 | Park Joo-sun | Dong, Gwangju | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 13 December 2015 | Ahn Cheol-soo | Nowon C, Seoul | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 15 December 2015 | Moon Byeong-ho | Bupyeong A, Incheon | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| Yu Sung-yup | Jeongeup, North Jeolla Province | NPAD | Independent | |||||
| 17 December 2015 | Hwang Ju-hong | Jangheung–Gangjin–Yeongam, South Jeolla Province | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 20 December 2015 | Kim Dong-cheol | Gwangsan A, Gwangju | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 23 December 2015 | Lim Nae-hyun | Buk B, Gwangju | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| 28 December 2015 | Choi Jae-cheon | Seongdong A, Seoul | NPAD | Independent | Left the New Politics Alliance for Democracy. | |||
| Kwon Eun-hee | Gwangsan B, Gwangju | NPAD | Independent | |||||
| 119 members | – | NPAD | Democratic | New Politics Alliance for Democracy renamed as the Democratic Party. | ||||
| 3 January 2016 | Kim Han-gil | Gwangjin A, Seoul | Democratic | Independent | Left the Democratic Party. | |||
| 8 January 2016 | Kim Young-hwan | Sangnok B, Ansan, Gyeonggi Province | Democratic | Independent | Left the Democratic Party. | |||
| 11 January 2016 | Kim Kwan-young | Gunsan, North Jeolla Province | Democratic | Independent | Left the Democratic Party. | |||
| 12 January 2016 | Choi Won-sik | Gyeyang B, Incheon | Democratic | Independent | Left the Democratic Party. | |||
| 13 January 2016 | Shin Hak-yong | Gyeyang A, Incheon | Democratic | Independent | Left the Democratic Party. | |||
| Chang Byoung-wan | Nam, Gwangju | Democratic | Independent | |||||
| 14 January 2016 | Kim Seung-nam | Goheung–Boseong, South Jeolla Province | Democratic | Independent | Left the Democratic Party. | |||
| 19 January 2016 | Cho Kyoung-tae | Saha B, Busan | Democratic | Independent | Left the Democratic Party. | |||
| 21 January 2016 | Cho Kyoung-tae | Saha B, Busan | Independent | Saenuri | Joined the Saenuri Party. | |||
| 22 January 2016 | Park Jie-won | Mokpo, South Jeolla Province | Democratic | Independent | Left the Democratic Party. | |||
| 2 February 2016 | Kim Han-gil | Gwangjin A, Seoul | Independent | People | Formed the People Party. | |||
| Ahn Cheol-soo | Nowon C, Seoul | Independent | People | |||||
| Moon Byeong-ho | Bupyeong A, Incheon | Independent | People | |||||
| Shin Hak-yong | Gyeyang A, Incheon | Independent | People | |||||
| Choi Won-sik | Gyeyang B, Incheon | Independent | People | |||||
| Park Joo-sun | Dong, Gwangju | Independent | People | |||||
| Chun Jung-bae | Seo B, Gwangju | Independent | People | |||||
| Chang Byoung-wan | Nam, Gwangju | Independent | People | |||||
| Kim Dong-cheol | Gwangsan A, Gwangju | Independent | People | |||||
| Lim Nae-hyun | Buk B, Gwangju | Independent | People | |||||
| Kim Young-hwan | Sangnok B, Ansan, Gyeonggi Province | Independent | People | |||||
| Kim Kwan-young | Gunsan, North Jeolla Province | Independent | People | |||||
| Yu Sung-yup | Jeongeup, North Jeolla Province | Independent | People | |||||
| Kim Seung-nam | Mokpo, South Jeolla Province | Independent | People | |||||
| Joo Seung-yong | Goheung–Boseong, South Jeolla Province | Independent | People | |||||
| Hwang Ju-hong | Jangheung–Gangjin–Yeongam, South Jeolla Province | Independent | People | |||||
| 14 February 2016 | Shin Ki-nam | Gangseo A, Seoul | Democratic | Independent | Left the Democratic Party. | |||
| 29 February 2016 | Jeon Jeong-hee | Iksan B, North Jeolla Province | Democratic | Independent | Left the Democratic Party. | |||
| 2 March 2016 | Jeon Jeong-hee | Iksan B, North Jeolla Province | Independent | People | Joined the People Party. | |||
| 4 March 2016 | Park Jie-won | Mokpo, South Jeolla Province | Independent | People | Joined the People Party. | |||
| 9 March 2016 | Kim Tae-hwan | Gumi B, North Gyeongsang Province | Saenuri | Independent | Left the Saenuri Party. | |||
| 14 March 2016 | Kang Dong-won | Namwon–Sunchang, North Jeolla Province | Democratic | Independent | Left the Democratic Party. | |||
| 15 March 2016 | Chyung Ho-joon | Jung, Seoul | Democratic | Independent | Left the Democratic Party. | |||
| Lee Hae-chan | Sejong | Democratic | Independent | |||||
| 16 March 2016 | Chyung Ho-joon | Jung, Seoul | Independent | People | Joined the People Party. | |||
| 17 March 2016 | Chin Young | Yongsan, Seoul | Saenuri | Independent | Left the Saenuri Party. | |||
| Shin Ki-nam | Gangseo A, Seoul | Independent | Minjoo | Joined the Minjoo Party. | ||||
| Boo Jwa-hyun | Danwon B, Ansan, Gyeonggi Province | Democratic | People | Left the Democratic Party to join the People Party. | ||||
| 18 March 2016 | Ahn Sang-soo | Seo–Ganghwa B, Incheon | Saenuri | Independent | Left the Saenuri Party. | |||
| Cho Hae-jin | Miryang–Changnyeong, South Gyeongsang Province | Saenuri | Independent | Left the Saenuri Party. | ||||
| 20 March 2016 | Chin Young | Yongsan, Seoul | Independent | Democratic | Joined the Democratic Party. | |||
| 21 March 2016 | Kwon Eun-hee | Buk A, Daegu | Saenuri | Independent | Left the Saenuri Party. | |||
| 22 March 2016 | Yoon Sang-hyun | Nam B, Incheon | Saenuri | Independent | Left the Saenuri Party. | |||
| Kang Ghil-boo | Ulju, Ulsan | Saenuri | Independent | |||||
| 23 March 2016 | Lee Jae-oh | Eunpyeong B, Seoul | Saenuri | Independent | Left the Saenuri Party. | |||
| Yoo Sung-kull | Dong A, Daegu | Saenuri | Independent | |||||
| Yoo Seong-min | Dong B, Daegu | Saenuri | Independent | |||||
| Joo Ho-young | Suseong B, Daegu | Saenuri | Independent | |||||
| 25 March 2016 | Lee Yoon-seok | Muan–Sinan, South Jeolla Province | Democratic | Christian Liberal | Left the Democratic Party to join the Christian Liberal Party. | |||
| 28 March 2016 | Kim Seung-nam | Goheung–Boseong, South Jeolla Province | People | Independent | Left the People Party. | |||
| 31 March 2016 | Kim Seung-nam | Goheung–Boseong, South Jeolla Province | Independent | Democratic | Rejoined the Democratic Party. | |||
| 28 April 2016 | Lee Yoon-seok | Muan–Sinan, South Jeolla Province | Christian Liberal | Independent | Left the Christian Liberal Party. | |||