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