| Miaoli Branch |
Miaoli City, Touwu Township, Tongluo Township, Sihu Township, Sanyi Township, Tungshiao Township, Yuanli Township, Dahu Township, Zhuolan Township, Taian Township, Shihtan Township, Gungguang Township, Houlong Township |
| Fengyuan Branch |
Fengyuan District, Tanzih District, Shengang District, Daya District, Houli District |
| Taichung Branch |
Xitun and Nantun Districts, Taichung City |
| Nantou Branch |
Nantou City, Jhongliao Township, Tsaotun Township, Mingjian Township, Jiji Township, Suili Township, Shinyi Township |
| Changhua Branch |
Changhua City, Lugang Township, Hemei Township, Shengang Township, Hsienhsi Township, Fushing Township, Hsiushui Township, Huatang Township, Fenyuan Township |
| Yunlin Branch |
Douliu City, Hsilo Township, Dounan Township, Gukeng Township, Dapi Township, Tsutung Township, Linnei Township |
| Jhunan Office |
Jhunan Township, Toufen Township, Nanjhuang Township, Sanwan Township, Zauciao Township |
| Shalu Office |
Shalu District, Dajia District, Wuchi District, Chingsui District, Longjing District, Waipu District, Daan District, Dadu District |
| Dongshih Office |
Dongshih District, Shinshou District, Shihgang District, Heping District |
| Dongshan Office |
Beitun District, Taichung City |
| Mincyuan Office |
Central, West and North Districts, Taichung City |
| Dajyh Office |
East and South Districts, Taichung City |
| Datun Office |
Dali District, Taiping District, Wufeng District, Wurih District |
| Puli Office |
Puli Township, Guoshing Township, Yuchih Township, Renai Township |
| Jhushan Office |
Jhushan Township, Lugu Township |
| Yuanlin Office |
Yuanlin City, Tianjung Township, Sihu Township, Setou Township, Erhshui Township, Yungjing Township, Pushin Township, Puyan Township, Datsun Township |
| Beidou Office |
Beidou Township, Erhlin Township, Hsichou Township, Jhutang Township, Tianwei Township, Pitou Township, Dacheng Township, Fangyuan Township |
| Huwei Office |
Huwei Township, Mailiao Township, Tuku Township, Baojhung Township, Erhlun Township, Dongshih Township, Lunbei Township, Taisi Township |
| Beigang Office |
Beigang Township, Yuanchang Township, Sihu Township, Kouhu Township, Shuilin Township |
