| Kerkyras Street | 19001 | Rest of Attica | Attica |
| Kiatou Street | 19001 | Rest of Attica | Attica |
| Kileler Street | 19600 | Rest of Attica | Attica |
| Kilkis Street | 19012 | Rest of Attica | Attica |
| Kilkis Street | 19012 | Rest of Attica | Attica |
| Kilkis Street | 19008 | Rest of Attica | Attica |
| Kilkis Street | 19100 | Rest of Attica | Attica |
| Kilkis Street | 19300 | Rest of Attica | Attica |
| Kimonos Street | 13344 | Rest of Attica | Attica |
| Kimonos Street | 19200 | Rest of Attica | Attica |
| Kimonos Street | 19600 | Rest of Attica | Attica |
| Kiou Street | 13342 | Rest of Attica | Attica |
| Kiourkatioti Anagnosti Street | 13351 | Rest of Attica | Attica |
| Kipon Street | 19011 | Rest of Attica | Attica |
| Kipon Street | 13341 | Rest of Attica | Attica |
| Kirkis Street | 19015 | Rest of Attica | Attica |
| Kirkis Street | 19014 | Rest of Attica | Attica |
| Kissamou Street | 13461 | Rest of Attica | Attica |
| Kissamou Street | 13341 | Rest of Attica | Attica |
| Kissavou Street | 13341 | Rest of Attica | Attica |
| Kissopoulou Konstantinou Street | 19500 | Rest of Attica | Attica |
| Kissou Street | 19015 | Rest of Attica | Attica |
| Kithaironos Street | 19015 | Rest of Attica | Attica |
| Kithaironos Street | 19012 | Rest of Attica | Attica |
| Kithaironos Street | 19008 | Rest of Attica | Attica |
| Kithaironos Street | 13341 | Rest of Attica | Attica |
| Kithaironos Street | 19012 | Rest of Attica | Attica |
| Kitron Street | 13343 | Rest of Attica | Attica |
| Kitsokosta Byway | 19200 | Rest of Attica | Attica |
| Klada Krokondeilou Street | 13343 | Rest of Attica | Attica |
| Klara Athanasiou Street | 13461 | Rest of Attica | Attica |
| Klazomenon Street | 13342 | Rest of Attica | Attica |
| Kleious Street | 19300 | Rest of Attica | Attica |
| Kleisouras Street | 19100 | Rest of Attica | Attica |
| Kleisouras Street | 19008 | Rest of Attica | Attica |
| Kleisouras Street | 19006 | Rest of Attica | Attica |
| Kleisovas Street | 13341 | Rest of Attica | Attica |
| Kleisthenous Street | 13344 | Rest of Attica | Attica |
| Kleitou Street | 13344 | Rest of Attica | Attica |
| Klelias Street | 13343 | Rest of Attica | Attica |