Regions of Taiwan
The regions of Taiwan are based on historical administrative divisions. However, most of the definitions are not precise.
Division into two regions
- Eastern and Western Taiwan: the Central Mountain Range separates Taiwan into east and west.
- Northern and Southern Taiwan: Zhuoshui River, the longest river of Taiwan, flows through about the middle of the island.
Division into four regions
Division into five regions
The scheme of division into five regions is a fusion of the tetrachotomy and hexachotomy schemes. Although no specific names are given in each division, it is the most commonly used scheme among the highest divisions of the central government. This scheme is used by the Joint Service Centers under Executive Yuan and the jurisdiction of High Court Branches under Judicial Yuan.| No. | Present divisions | Joint Service Center | High Court Branch |
| 1 | Taipei, New Taipei, Keelung, Taoyuan, Hsinchu City/County, Yilan | Taiwan HC | |
| 2 | Miaoli, Taichung, Changhua, Nantou | Central Taiwan JSC | Taiwan HC Taichung BC |
| 3 | Yunlin, Chiayi City/County, Tainan | Yunlin-Chiayi-Tainan JSC | Taiwan HC Tainan BC |
| 4 | Kaohsiung, Pingtung, Penghu | Southern Taiwan JSC | Taiwan HC Kaohsiung BC |
| 5 | Hualien, Taitung | Eastern Taiwan JSC | Taiwan HC Hualien BC |
| – | Kinmen, Matsu | Kinmen-Matsu JSC | Fuchien HC Kinmen BC |