| Public Information | |
|---|---|
| Name | Hydra |
| Postal Code | 180 40 |
| County | Piraeus |
| State | Attica |
| Latitude | 37.32615 |
| Longitude | 23.43594 |
| Elevation | 36 m |
| Name | Postal Code | County |
|---|---|---|
| Abelakia, Piraeus | 189 02 | Piraeus |
| Aegina, Piraeus | 180 10 | Piraeus |
| Drapetsona, Piraeus | 186 48 | Piraeus |
| Eadio, Piraeus | 189 03 | Piraeus |
| Hydra, Piraeus | 180 40 | Piraeus |
| Keratsini, Piraeus | 187 55 | Piraeus |
| Keratsini, Piraeus | 187 56 | Piraeus |
| Keratsini, Piraeus | 187 57 | Piraeus |
| Keratsini, Piraeus | 187 58 | Piraeus |
| Korydallos, Piraeus | 181 20 | Piraeus |
| Korydallos, Piraeus | 181 21 | Piraeus |
| Korydallos, Piraeus | 181 22 | Piraeus |
| Kythira, Piraeus | 801 00 | Piraeus |
| Methana, Piraeus | 180 30 | Piraeus |
| Nikaia, Piraeus | 184 50 | Piraeus |
| Nikaia, Piraeus | 184 51 | Piraeus |
| Nikaia, Piraeus | 184 52 | Piraeus |
| Nikaia, Piraeus | 184 53 | Piraeus |
| Nikaia, Piraeus | 184 54 | Piraeus |
| Nikaia, Piraeus | 185 51 | Piraeus |
| Paloykia, Piraeus | 189 01 | Piraeus |
| Perama, Piraeus | 188 63 | Piraeus |
| Pireas, Piraeus | 185 31 | Piraeus |
| Pireas, Piraeus | 185 32 | Piraeus |
| Pireas, Piraeus | 185 33 | Piraeus |
| Pireas, Piraeus | 185 34 | Piraeus |