| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Alagoinhas, Alagoinhas | 48005, 48010, 48011, 48020, 48030, 48031, 48040, 48050, 48051, 48060, 48070, 48071, 48080, 48090, 48091, 48099 |
| Postal/ZIP Codes in Boa União, Alagoinhas | 48103-000 |
| Postal/ZIP Codes in Narandiba, Alagoinhas | 48107-000 |
| Postal/ZIP Codes in Riacho da Guia, Alagoinhas | 48105-000 |