Sister Cities at Home and Abroad (eight cities)
| Nation | City | Homepage | Date of Contract |
|---|---|---|---|
| Korea | Iksan, Jeollabuk-do |  |
Nov. 20, 1998 |
| Japan | Nara, Nara Prefecture (奈良縣 奈良市) | |
Apr. 15, 1970 |
| Japan | Obama, Fukui Prefecture (福井縣 小浜市) | |
Feb. 13, 1977 |
| Italy | Pompeii | |
Oct. 14, 1985 |
| France | Versailles | |
Apr. 15, 1987 |
| China | Xi'an, Shaanxi Province (陝西省 西安市) | |
Nov. 18, 1994 |
| Vietnam | Hue, Thua Thien Hue Province | |
Sep. 07, 2007 |
| Slovakia | Nitra | |
Aug. 21, 2014 |
Friendly Relations (10 cities)
| Nation | Name of Cities | Homepage | Established Date |
|---|---|---|---|
| Korea | Bueyo-gun, Chungcheongnam-do | |
Nov. 20, 2008 |
| Japan | Usa, Oita Prefecture (大分縣 宇佐市) | |
Jul. 03, 1992 |
| Japan | Nikko, Tochigi Prefecture (枋木縣 日光市) | |
Nov. 11, 2009 |
| China | Yangzhou, Jiangsu Province (江蘇省 揚州市) | |
Nov. 24, 2008 |
| China | Jiaozuo, Henan Province (河南省 焦作市) | |
Nov. 05, 2012 |
| Uzbekistan | Samarkand | |
Aug. 02, 2013 |
| Iran | Isfahan | |
Aug. 20, 2013 |
| China | Yichang, Hubei Province (湖北省 宜昌市) | |
Oct. 16, 2013 |
| China | Chengde, Hebei Province (河北省 承德市) | ||
| Peru | Arequipa | Nov. 05, 2015 |
International Sister Cities
