Since the Establishment of the Government 1952 ~ 1961
- Apr. 25, 1952The first election for the eup/myeon council (56 members)
- Aug. 8, 1956The 2nd election for the eup/myeon council (56 members)
- Dec. 19, 1960The 3rd election for the eup/myeon council (50 members)
- Sep. 1, 1961Dissolution of the eup/myeon council of Ulsan
Before Being Elevated to Ulsan-si 1960 ~ 1991
- Dec. 19, 1960By-election for members of the Ulsan-si Council (1 member for, Jung-gu, Nam-gu, and Dong-gu, respectively)
- Sep. 1, 1961By-election for members of the Ulsan-si Council (1 member for Dong-gu)
- Mar. 26, 1991Election for members of the Ulsan-si Council (50 members)
- Apr. 15, 1991Opening of the first Ulsan-si Council
After the Integration of Ulsan-si and gun1995
- Jan. 10, 1995Opening of the integrated (si/gun) council (64 members)
- Jun. 27, 1995The 2nd election for members of Ulsan-si Council (60 members)
- Jul. 11, 1995Opening of the 2nd Ulsan-si Council
After Being Elevated to Ulsan Metropolitan City1997
- Jul. 15, 1997 Elevated to Ulsan Metropolitan City
- Jul. 15, 1997 Opening of the first Ulsan Metropolitan Council (72 members)
- Jul. 15, 1997 Opening of the first Nam-gu District Council Ulsan Metropolitan City (19 members)
- Jul. 7, 1998 Opening of the 2nd Nam-gu District Council Ulsan Metropolitan City (15 members)
- Jul. 7, 2000 Organization of the members for the 2nd Nam-gu District Council (15 members)
- Jul. 9, 2002 Opening of the 3rd Nam-gu District Council (14 members)
- Jul. 1, 2004 Organization of the members for the 3rd Nam-gu District Council for the second half-year (12 members)
- Jul. 3, 2006 Opening of the 4th Nam-gu District Council (14 members)
- Jul. 1, 2008 Organization of the members for the 4th Nam-gu District Council for the second half-year (14 members)
- Jul. 1, 2010 Opening of the 5th Nam-gu District Council (14 members)
- Jul. 1, 2014 The 6th Nam-gu District Council Ulsan Metropolitan City
- Jul. 5, 2016 Organization of the members for the 6th Nam-gu District Council for the second half-year (14 members)
- Jul. 2, 2018 Opening of the 7th Nam-gu District Council (14 members)
- Sep. 11, 2020 Organization of the members for the 7th Nam-gu District Council for the second half-year (14 members)
- Jul. 4, 2022 Opening of the 8th Nam-gu District Council (14 members)
- Jul. 1, 2024 Organization of the members for the 7th Nam-gu District Council for the second half-year (14 members)