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1991 ~ 1998
- 1991. 03.26
- Council Assemblymen Election (term of office 4 years, 17 members)
- 1991. 04.15
- Opened the first Council (Chairperson: Lee Hosup, Vice-Chairperson: Choi Hakhyun)
- 1992. 04.03
- Organized standing committee (operation, internal affairs, industry)
- 1993. 04.13
- Organized the latter half of the Council (Chairperson: Lee Hosup, Vice-Chairperson: Jeon Gapman)
- 1995. 06.27
- he 2nd Council Assemblymen Election (term of office 3 years, 16 members)
- 1995. 07.14
- Opened the 2nd Council (Chairperson: Lee Heasang, Vice-Chairperson: Lee Guyoung)
- 1998. 06.04
- The 3rd Council Assemblymen Election (term of office 4 years, 15 members)
- 1998. 07.09
- Opened the 3rd Council (Chairperson: Hong Soonbeom, Vice-Chairperson: Park Jongkil)
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2001 ~ 2010
- 2001. 03.21
- Elevated from Hwaseong-gun Council to Hwaseong-si Council due to the elevation from Hwaseong-gun to Hwaseong-si
- 2001. 03.21
- Changed the name of standing committee (operation, administrative self-governing, city industry)
- 2002. 06.13
- The 4th Council Assemblymen Election (term of office 4 years, 16 members)
- 2002. 07.09
- Opened the 4th Council (Chairperson: Hong Jinhwan, Vice-Chairperson: Choi Jiyong)
- 2004. 06.30
- Organized the latter half of the Council (Chairperson: Choi Jiyong, Vice-Chairperson: Kim Jinhwan)
- 2004. 07.05
- Organized the 4th standing committee (Operation: 7 members, administrative self-governing: 7 members, city industry: 8 members)
- 2005. 06.16
- The latter half of the 4th Council Vice-Chairperson by-election (Vice-Chairperson: Hong Junghwa)
- 2005. 06.18
- Changed the latter half Council (Chairperson: Choi Jiyong, Vice-Chairperson: Hong Junghwa)
- 2006. 05.03
- Changed the latter half Council (Chairperson: Kim Jinhwan, Vice-Chairperson: Hong Junghwa)
- 2006. 07.07
- Opened the 5th Council (Chairperson: Jeon Jaeyoung, Vice-Chairperson Park Gilyang)
- 2007. 11.02
- Changed the name of standing committee (city industry committee → Industry & Construction Committee
- 2008. 07.07
- Organized the latter of the Council (Chairperson: Lee Taesup, Vice-Chairperson: Park Gilyang)
- 2010. 07.01
- Changed the name of standing committee( Industry & Construction Committee → City Construction Committee, Welfare and Environment Committee established)
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2011 ~ PRESENT
- 2011. 03.14
- Changed the name of standing committee(City Construction Committee->Environment City Council, Welfare and Environment Committee → Welfare Economics Committee)
- 2012. 07.01
- Organized the latter of the Council (Chairperson:Ha Manyong, Vice-Chairperson Seo Jaaeil )
- 2013. 07.01
- Changed the name of standing committee(Environment City Council → City Construction Committee, Welfare and Environment Committee → Education Welfare Economic Committee)
- 2014. 08.01
- Opened the 7th Council (Chairperson: Park Jongseon, Vice-Chairperson Seo Jaeil)
- 2016. 07.01
- Organized the latter half of the 7th Council (Chairperson: Kim Jung Joo, Vice-Chairperson: Lee Hong Keun)
- 2018. 07.01
- Opened the 8th Council (Chairperson: Kim Hong-sung, Vice-Chairperson :Lee Chang-hyun)
- 2020. 06.29
- Organized the latter half of the 8th Council (Chairperson: Won Yu-min, Vice-Chairperson: Lee Chang-hyun)
- 2022. 07.14
- Opened the 9th Council (Chairperson: Kim Kyeong-hee, Vice-Chairperson : Oh Moon-seob)
- 2024. 07.04
- Organized the latter half of the 9th Council (Chairperson: Bae Jeong-su, Vice-Chairperson : Jeong Heung-beom)