The following are the zip codes in the municipalities of Guimaras.
| Region | Provinces | City/Municipality | Zip Code |
| Region 6 (Western Visayas) | Guimaras | Buenavista | 5044 |
| Region 6 (Western Visayas) | Guimaras | Jordan | 5045 |
| Region 6 (Western Visayas) | Guimaras | Nueva Valencia | 5046 |
| Region 6 (Western Visayas) | Guimaras | San Lorenzo | 5047 |
| Region 6 (Western Visayas) | Guimaras | Sibunag | 5048 |
