| Locality | Post Code |
|---|---|
| San Rafael, Caacupé | 030102 |
| Santa Ana, Caacupé | 030101 |
| Santa Maria, Caacupé | 030108 |
| Seminario, Caacupé | 030107 |
| Tupasy Ykua, Caacupé | 030103 |
| Yhaka Roysa, Caacupé | 030119 |
| Ypuku, Caacupé | 030112 |
| Ytu Guasu, Caacupé | 030112 |
| Ytu Mi, Caacupé | 030113 |
| Yvoty, Caacupé | 030106 |
| Yvu, Caacupé | 030106 |