| City | Region | Country | Time Zone | Population | |
|---|---|---|---|---|---|
| Colombo |
--- |
Sri Lanka | India Standard Time | 648,034 | |
| Dehiwala-Mount Lavinia |
--- |
Sri Lanka | India Standard Time | 219,827 | |
| Maharagama |
--- |
Sri Lanka | India Standard Time | 195,355 | |
| Jaffna |
--- |
Sri Lanka | India Standard Time | 169,102 | |
| Moratuwa |
--- |
Sri Lanka | India Standard Time | 168,280 | |
| Negombo |
--- |
Sri Lanka | India Standard Time | 137,223 | |
| Pita Kotte |
--- |
Sri Lanka | India Standard Time | 118,179 | |
| Sri Jayewardenepura Kotte |
--- |
Sri Lanka | India Standard Time | 115,826 | |
| Kandy |
--- |
Sri Lanka | India Standard Time | 111,701 | |
| Trincomalee |
--- |
Sri Lanka | India Standard Time | 108,420 | |
| Kalmunai |
--- |
Sri Lanka | India Standard Time | 100,171 | |
| Galle |
--- |
Sri Lanka | India Standard Time | 93,118 | |
| Point Pedro |
--- |
Sri Lanka | India Standard Time | 89,810 | |
| Batticaloa |
--- |
Sri Lanka | India Standard Time | 86,742 | |
| Katunayaka |
--- |
Sri Lanka | India Standard Time | 84,643 | |
| Valvedditturai |
--- |
Sri Lanka | India Standard Time | 78,205 | |
| Matara |
--- |
Sri Lanka | India Standard Time | 76,254 | |
| Battaramulla South |
--- |
Sri Lanka | India Standard Time | 75,633 | |
| Dambulla |
--- |
Sri Lanka | India Standard Time | 66,716 | |
| Kolonnawa |
--- |
Sri Lanka | India Standard Time | 64,887 |

