| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Sugetachouzuko (大洲市) | 795-0084 |
| Postal/ZIP Codes in Sugetachouzuotsu (大洲市) | 795-0085 |
| Postal/ZIP Codes in Tada (大洲市) | 795-0031 |
| Postal/ZIP Codes in Tadokoro (大洲市) | 795-0078 |
| Postal/ZIP Codes in Takayama (大洲市) | 795-0024 |
| Postal/ZIP Codes in Tanokuchi (大洲市) | 795-0063 |
| Postal/ZIP Codes in Tenaru (大洲市) | 795-0044 |
| Postal/ZIP Codes in Tokiwamachi (大洲市) | 795-0053 |
| Postal/ZIP Codes in Tokunomori (大洲市) | 795-0061 |
| Postal/ZIP Codes in Toyoshige Hei (大洲市) | 799-3463 |
| Postal/ZIP Codes in Toyoshige Ko (大洲市) | 799-3461 |
| Postal/ZIP Codes in Toyoshige Otsu (大洲市) | 799-3462 |
| Postal/ZIP Codes in Toyoshige Tei (大洲市) | 799-3464 |
| Postal/ZIP Codes in Umegawa (大洲市) | 795-0003 |
| Postal/ZIP Codes in Uwagawa (大洲市) | 795-0088 |
| Postal/ZIP Codes in Wakamiya (大洲市) | 795-0052 |
| Postal/ZIP Codes in Yanagisawa (大洲市) | 795-0077 |
| Postal/ZIP Codes in Yasarai (大洲市) | 795-0006 |
| Postal/ZIP Codes in Yokono (大洲市) | 795-0005 |
| Postal/ZIP Codes in Yonazu (大洲市) | 795-0043, 795-0042 |
| Postal/ZIP Codes in Yunoki (大洲市) | 795-0011 |