- Baekje
- The name, Myeolo-Hyeon, was changed to Guseong-Hyeon in 475
(the 63rd year in the reign of King Jangsoo of the Goguryeo Dynasty)
- Goguryeo
- The name, Guseong-Hyeon, was changed to Geoseo in the reign of King Gyeongdeok
of the Silla Dynasty
- Goryeo
- Geoseo was renamed Yonggu in the beginning of the Goryeo Dynasy(944 A.D.)
- Joseon
- The status of Choinbukok of Suju was promoted to Cheoin-Hyeon in the 6th year
in the reign of King Taejo of the Joseon Dynasty
- Republic of Korea
- 1413
Yonggu and Cheoin-Hyeon were combined and renamed Yongin-Hyeon in the 13th year in the reign of King Taejong of the Joseon Dynasty
May 26th, 1895
The jurisdiction of Yongin moved from Chungjubu to Gyeonggi-Do
April 1st, 1914
Yangji-Gun, and part of Joksan-Kun, were integated. They expanded to naesa,
Oesa, and Wonsam-Myeon and were reorganized into 12 Myeon
1937
Suyeo-Myeon was renamed Yongin-Myeon. Eupsam-Myeon was renamed as its original Goguryeo era name, Guseong-Myeon
1963
Gosam-Myeon was incorporated into Anseong-Myeonn and reorganized into 11 Myeon
May 1, 1979
Yongin - Myeon was promoted to Yongin-Eup, an Admenistrative System with 1Eup, 10 Myeon, 108 legal Dong, 321 administrative Dong, 369 natural vatural villages, and 709 Ban
February 15, 1983
Ha-Ri and Yiui-ri of Suji-Myeon were incorporated into Suwon. Wolgyeong village, of jinmok-ri of Namsa-Myeon, was incorporated into Pyeongtaek. This administrative district remains today
October 1, 1985
Giheung-Myeon was promoted to Giheung-Eup
March 1, 1996
Yongin-Gun was promoted to city status, combining urban and farming districts.
Yongin-Eup was divided into Jungang-Dong, Yeoksam-Dong, Yurin-Dong, and Dongbu-Dong.
Suji-Myeon was promoted to Suji-Eup. Naesa-Myeon was renamed as Yangji-Myeon.
Waesa-Myeon was renamed Baekam-Myeon. These moves established an Administrative
System with 2 Eup, 8 Myeon, 4 Dong, 108legal Ri and Dong,
504 administrative Ri and Tong, 363 natural villages, and 1,461 Ban
September 1,2000
Guseong-Myeon was promoted to Gyseong-Eup
Dedember 24, 2001
Suji-Eup was promoted to Suji Agency, thereby establishing an Administrative System with 1 Agency, 2 Eup, 7 Myeon, and 10 Dong
October 31, 2005
3 Gu Offices were established in Cheoin-Gu, Giheung-Gu, and Suji-Gu, creating an Administrative System with 3 Gu, 1 Eup, 6 Myeon, and 22 dong
July 2, 2007
Is Shares Eojeong-dong, SangHa-Dong, DongBak-Dong establishment. 3Gu, 1 Eup, 6 Myeon, 23 Dong