Colombo District – All postal codes | |||||||||||
| Akarawita | CO | 10732 | Hanwella | CO | 10650 | Pannipitiya | CO | 10230 | |||
| Angamuwa | CO | 10150 | Hewainna | CO | 10714 | Piliyandala | CO | 10300 | |||
| Avissawella | CO | 10700 | Hiripitya | CO | 10232 | Pitipana Homagama | CO | 10206 | |||
| Batawala | CO | 10513 | Hokandara | CO | 10118 | Polgasowita | CO | 10320 | |||
| Battaramulla | CO | 10120 | Homagama | CO | 10200 | Puwakpitiya | CO | 10712 | |||
| Batugampola | CO | 10526 | Horagala | CO | 10502 | Ranala | CO | 10654 | |||
| Bope | CO | 10522 | Kaduwela | CO | 10640 | Siddamulla | CO | 10304 | |||
| Boralesgamuwa | CO | 10290 | Kahawala | CO | 10508 | Slave Island | CO | 00200 | |||
| Borella | CO | 800 | Kalatuwawa | CO | 10718 | Sri Jayawardenapura | CO | 10100 | |||
| Dedigamuwa | CO | 10656 | Madapatha | CO | 10306 | Thalawathugoda | CO | 10116 | |||
| Dehiwala | CO | 10350 | Maharagama | CO | 10280 | Tummodara | CO | 10682 | |||
| Deltara | CO | 10302 | Malabe | CO | 10115 | Waga | CO | 10680 | |||
| Habarakada | CO | 10204 | Meegoda | CO | 10504 | Watareka | CO | 10511 | |||
| Handapangoda | CO | 10524 | Padukka | CO | 10500 | Rajagiriya | CO | 10107 | |||
