| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Cachadinha, Castanheira | 4940-101 |
| Postal/ZIP Codes in Carreira, Castanheira | 4940-102 |
| Postal/ZIP Codes in Chaos, Castanheira | 4940-103 |
| Postal/ZIP Codes in Chavião, Castanheira | 4940-104 |
| Postal/ZIP Codes in Coqueira, Castanheira | 4940-106 |
| Postal/ZIP Codes in Corredouras, Castanheira | 4940-105 |
| Postal/ZIP Codes in Covelo, Castanheira | 4940-107 |
| Postal/ZIP Codes in Cruzeiro, Castanheira | 4940-107 |
| Postal/ZIP Codes in Cuco, Castanheira | 4940-108 |
| Postal/ZIP Codes in Lapa, Castanheira | 4940-109 |
| Postal/ZIP Codes in Pena, Castanheira | 4940-110 |
| Postal/ZIP Codes in Peneirados, Castanheira | 4940-111 |
| Postal/ZIP Codes in Pereiro, Castanheira | 4940-112 |
| Postal/ZIP Codes in Redonda, Castanheira | 4940-113 |
| Postal/ZIP Codes in Revoreda, Castanheira | 4940-114 |
| Postal/ZIP Codes in Ribas, Castanheira | 4940-115 |
| Postal/ZIP Codes in Salgueirinhos, Castanheira | 4940-116 |
| Postal/ZIP Codes in Sumil, Castanheira | 4940-117 |