| Municipalities |
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| Postal/ZIP Codes in Kefalonia, Kefalonia (Κεφαλονιά) |
| Postal/ZIP Codes in Ionian Islands (Ιόνια Νησιά) |
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| Postal/ZIP Codes in Corfu (Κερκύρας) |
| Postal/ZIP Codes in Ithaka (Ιθάκης) |
| Postal/ZIP Codes in Kefalonia (Κεφαλληνίας) |
| Postal/ZIP Codes in Lefkada (Λευκάδας) |
| Postal/ZIP Codes in Zakynthos (Ζακύνθου) |