The Colombo postal code is 00100. However, it is not applicable for entire district and Colombo City. Actually, the postcode 00100 is for Colombo Fort. Likewise, each area has unique code. Postal codes in Colombo start with 00 and 10, and its district code of Colombo is CO. Sometimes, it is known as Colombo zip code.
Colombo is the largest city and commercial capital of Sri Lanka. It is a bustling metropolis and over 750,000 people live in the city. It has numerous businesses, government offices, and cultural attractions. If you need to send mail or packages to Colombo, you will need to know the Colombo postal code / zip code Colombo. The postal code Colombo is 00100. This code is used for Colombo Fort. When sending mail or packages to Colombo, it is important to include the postal code along with the address. Colombo city has 15 city suburbs and each has its own code. Here is list of postcodes for each city. Postal codes in Colombo start with 00 and 10, and its district code of Colombo is CO.
| Colombo Fort | 00100 |
| Slave Island and Union Place | 00200 |
| Colpetty / Kolupitiya | 00300 |
| Bambalapitiya | 00400 |
| Havelock Town, Kirulapone and Narahenpita | 00500 |
| Wellawatte and Pamankada | 00600 |
| Cinnamon Gardens | 00700 |
| Borella | 00800 |
| Dematagoda | 00900 |
| Maradana and Panchikawatte | 01000 |
| Pettah | 01100 |
| Hultsdorf | 01200 |
| Kotahena and Bloemendhal | 01300 |
| Grandpass | 01400 |
| Modara/Mutwal, Mattakkuliya and Madampitiya | 01500 |
Here is the list of Colombo postal codes for all areas in the district.
| Akarawita | 10732 |
| Angamuwa | 10150 |
| Avissawella | 10700 |
| Bambalapitiya | 00400 |
| Batawala | 10513 |
| Battaramulla | 10120 |
| Batugampola | 10526 |
| Bope | 10522 |
| Boralesgamuwa | 10290 |
| Borella | 00800 |
| Cinnamon Gardens | 00700 |
| Colpetty | 00300 |
| Dedigamuwa | 10656 |
| Dehiwala | 10350 |
| Deltara | 10302 |
| Dematagoda | 00900 |
| Fort | 00100 |
| Grandpass | 01400 |
| Habarakada | 10204 |
| Handapangoda | 10524 |
| Hanwella | 10650 |
| Hewainna | 10714 |
| Hiripitya | 10232 |
| Hokandara | 10118 |
| Homagama | 10200 |
| Horagala | 10502 |
| Hultsdorf | 01200 |
| Kaduwela | 10640 |
| Kahawala | 10508 |
| Kalatuwawa | 10718 |
| Kolonnawa | 10600 |
| Kotahena | 01300 |
| Madapatha | 10306 |
| Maharagama | 10280 |
| Malabe | 10115 |
| Maradana | 01000 |
| Meegoda | 10504 |
| Moratuwa | 10400 |
| Mount Lavinia | 10370 |
| Mutwal | 01500 |
| Narahenpita | 00500 |
| Padukka | 10500 |
| Pannipitiya | 10230 |
| Pettah | 01100 |
| Piliyandala | 10300 |
| Pitipana Homagama | 10206 |
| Polgasowita | 10320 |
| Puwakpitiya | 10712 |
| Rajagiriya | 10107 |
| Ranala | 10654 |
| Siddamulla | 10304 |
| Slave Island | 00200 |
| Sri Jayawardenepura | 10100 |
| Talawatugoda | 10116 |
| Tummodara | 10682 |
| Waga | 10680 |
| Watareka | 10511 |
| Wellawatte | 00600 |