| population | |
| Kolonnawa | 64887 |
 | Diyawanna Oya Seaplane Base | ~ 3.67 km |
| Beira Lake Seaplane Base | ~ 3.95 km |
| Kelani-Peliyagoda Seaplane Base | ~ 4.80 km |
| Colombo Ratmalana Airport | ~ 12.41 km |
| Dandugama Seaplane Base | ~ 19.49 km |
| Bandaranaike International Colombo Airport | ~ 27.50 km |
| Katukurunda Air Force Base | ~ 43.50 km |
| Bentota River Waterdrome | ~ 57.10 km |
| Castlereagh Lake Seaplane Base | ~ 77.07 km |
