2000 ~
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- 2024
- 24 OctoberOpened and held the election of the President and Vice President for the second half-year of the 9th Donghae City Council
- 27 September(President: Min Kuy-hee, Vice President: Choi I-soon)
- 10 AprilBy-election due to the death of Rep. Choi Myung-kwan in the Na constituency
(Park Joo-hyun elected as a lawmaker)
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- 2022
- 14 JulyOpened and held the election of the President and Vice President for the first half-year of the 9th Donghae City Council
- 11 JulyHeld the election of the President and Vice President for the second half-year of the 9th Donghae City Council
(President: Lee Dong-ho, Vice president: Choi Myeong-gwan) - 1 JuneHeld the election of members of the 9th Donghae City Council
(8 Councilmen from 2 electoral districts) - 3 MayHeld a by-election of Councilman for the second half-year of the 8th Donghae City Council
(President: Choi Seok-chan)
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- 2020
- 06 JulyOpened and held the election of the President and Vice President for the second half-year of the 8th Donghae City Council
- 26 June(President: Kim Ki-ha, Vice President: Park Nam-sun)
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- 2018
- 6 JulyOpened and held the election of the President and Vice President for the first half-year of the 8th Donghae City Council
(President: Choi Seok-chan, Vice President: Yim Eung-taek) - 13 JuneHeld the election of members of the 8th Donghae City Council
(8 Councilmen from 2 electoral districts)
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- 2016
- 13 JuneOpened and held the election of the President and Vice President for the second half-year of the 7th Donghae City Council
(President: Chung Sung-mo, Vice President: Choi Seok-chan)
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- 2014
- 2 JulyOpened and held the election of the President and Vice President for the second half-year of the 7th Donghae City Council
(President: Kim Hye-suk, Vice President: Kim Ki-ha) - 4 JuneHeld the election of members of the 7th Donghae City Council
(8 Councilmen from 3 electoral districts)
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- 2012
- 7 JulyHeld the election of the President and Vice President for the second half-year of the 6th Donghae City Council
(President: Lee Ki-jun, Vice president: Hong Bong-ja)
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- 2010
- 7 JulyHeld the election of the President and Vice President for the first half-year of the 6th Donghae City Council
(President: Hong Sun-man, Vice President: Lee Ki-jun) - 28 AprilHeld a by-election of Councilman for the second half-year of the 5th Donghae City Council
(Vice President: Kim Jin-yeong)
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- 2008
- 27 JuneHeld the election of the President and Vice President for the second half-year of the 5th Donghae City Council
(President: Kim Won-oh, Vice President: Lee Yeong-hee)
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- 2006
- 3 JulyHeld the election of the President and Vice President for the first half-year of the 5th Donghae City Council
(President: Kim Jin-yeop, Vice President: Jeon Yeong-chang)
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- 2004
- 25 JuneHeld the election of the President and Vice President for the second half-year of the 4th Donghae City Council
(President: Nahm Woo, Vice President: Chung Nak-jin)
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- 2002
- 3 JulyHeld the election of the President and Vice President for the first half-year of the 4th Donghae City Council
(President: Yoon Jong-dae, Vice President: Chung Nak-jin) - 13 JuneHeld the election of members of the 4th Donghae City Council
(8 Councilmen from 8 electoral districts)
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- 2000
- 24 JuneHeld the election of the President and Vice President for the second half-year of the 3rd Donghae City Council
(President: Choi Han-sik, Vice President: Kwon Sun-il)