| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Arendal, Arendal | 4825, 4836, 4838, 4839, 4841, … |
| Postal/ZIP Codes in Bjorbekk, Arendal | 4824 |
| Postal/ZIP Codes in Eydehavn, Arendal | 4810 |
| Postal/ZIP Codes in Færvik, Arendal | 4818 |
| Postal/ZIP Codes in His, Arendal | 4817 |
| Postal/ZIP Codes in Kolbjørnsvik, Arendal | 4816 |
| Postal/ZIP Codes in Kongshavn, Arendal | 4812 |
| Postal/ZIP Codes in Nedenes, Arendal | 4823 |
| Postal/ZIP Codes in Rykene, Arendal | 4821 |
| Postal/ZIP Codes in Saltrød, Arendal | 4815 |
| Postal/ZIP Codes in Staubø, Arendal | 4920 |