The following is a list of 22 major subjects under the jurisdiction of the Republic of China (Taiwan) ranked by area, including 5 special municipalities, 3 provincial cities and 14 counties. Data is current as of June 2011 and was sourced from the Ministry of the Interior.
| Rank | Division name | Chinese name | Type | Area (km²) |
|---|---|---|---|---|
| 1 | Hualien County | 花蓮縣 | County | 4628.5714 |
| 2 | Nantou County | 南投縣 | County | 4106.4360 |
| 3 | Taitung County | 臺東縣 (台東縣) | County | 3515.2526 |
| 4 | Kaohsiung City | 高雄市 | Special municipality | 2946.2671 |
| 5 | Pingtung County | 屏東縣 | County | 2775.6003 |
| 6 | Taichung City | 臺中市 (台中市) | Special municipality | 2214.8968 |
| 7 | Tainan City | 臺南市 (台南市) | Special municipality | 2191.6531 |
| 8 | Yilan County | 宜蘭縣 | County | 2143.6251 |
| 9 | New Taipei City | 新北市 | Special municipality | 2052.5667 |
| 10 | Chiayi County | 嘉義縣 | County | 1903.6367 |
| 11 | Miaoli County | 苗栗縣 | County | 1820.3149 |
| 12 | Hsinchu County | 新竹縣 | County | 1427.5369 |
| 13 | Yunlin County | 雲林縣 | County | 1290.8326 |
| 14 | Taoyuan County | 桃園縣 | County | 1220.9540 |
| 15 | Changhua County | 彰化縣 | County | 1074.3960 |
| 16 | Taipei City | 臺北市 (台北市) | Special municipality | 271.7997 |
| 17 | Kinmen County | 金門縣 | County | 151.6560 |
| 18 | Penghu County | 澎湖縣 | County | 141.0520 |
| 19 | Keelung City | 基隆市 | Provincial city | 132.7589 |
| 20 | Hsinchu City | 新竹市 | Provincial city | 104.1526 |
| 21 | Chiayi City | 嘉義市 | Provincial city | 60.0256 |
| 22 | Lienchiang County | 連江縣 | County | 29.36 |