| 1963.01.01 |
the Law No. 1177 raised Idam-Myeon to Dongducheon-Eup. |
| 1969.08.15 |
Organization reform as Semi-City (2 sections, 1 branch, 10 subsections) |
| 1973.07.01 |
Merged Tapdong-ri, Pocheon-myeon, and Pocheon-gun into Dongducheon-eup by the Presidential decree No. 6543. |
| 1979.05.01 |
Organization reform & branch office extention
(4 sections, 13 subsections, 4 branches) |
| 1981.07.01 |
the Law No. 3425 promoted as Dongducheon-si |
| 1983.02.15 |
3 ri's of Sangpae, Eunhyeon-myeon, and Yangju-gun were admitted into Dongducheon-si by the Law No. 11027. |
| 1985.10.10 |
Moved the City Hall to the current building location |
| 1998.11.30 |
Reestablished minor 10 dong's with the population of less than 5,000 to 7 dong's |
