| City | Region | Population | Latitude | Longitude |
|---|---|---|---|---|
| Colombo | Western | 648,034 | 6.9319400 | 79.8477800 |
| Mount Lavinia | Western | 219,827 | 6.8394700 | 79.8645100 |
| Dehiwala-Mount Lavinia | Western | 219,827 | 6.8401900 | 79.8711600 |
| Galkissa | Western | 215,941 | 6.8293000 | 79.8630000 |
| Moratuwa | Western | 185,031 | 6.7730000 | 79.8816000 |
| Jaffna | Northern Province | 169,102 | 9.6684500 | 80.0074200 |
| Negombo | Western | 137,223 | 7.2083000 | 79.8358000 |
| Pita Kotte | Western | 118,179 | 6.8905000 | 79.9015000 |
| Sri Jayewardenepura Kotte | Western | 115,826 | 6.8829700 | 79.9070800 |
| Kandy | Central | 111,701 | 7.2955000 | 80.6356000 |
| Trincomalee | Eastern Province | 108,420 | 8.5711000 | 81.2335000 |
| Kalmunai | Eastern Province | 100,171 | 7.4090200 | 81.8347200 |
| Galle | Southern | 93,118 | 6.0367000 | 80.2170000 |
| Point Pedro | Northern Province | 89,810 | 9.8166700 | 80.2333300 |
| Batticaloa | Eastern Province | 86,742 | 7.7102000 | 81.6924000 |
| Katunayaka | Western | 84,643 | 7.1699200 | 79.8883700 |
| Valvedditturai | Northern Province | 78,205 | 9.8166700 | 80.1666700 |
| Matara | Southern | 76,254 | 5.9485100 | 80.5352800 |
| Battaramulla South | Western | 75,633 | 6.8964000 | 79.9181000 |
| Dambulla | Central | 66,716 | 7.8600000 | 80.6516700 |
| Maharagama | Western | 66,576 | 6.8480000 | 79.9265000 |
| Kotikawatta | Western | 64,565 | 6.9269000 | 79.9095000 |
| Anuradhapura | North Central | 60,943 | 8.3122300 | 80.4130600 |
| Vavuniya | Northern Province | 60,176 | 8.7514000 | 80.4971000 |
| Kolonnawa | Western | 58,076 | 6.9329000 | 79.8848000 |
| Hendala | Western | 56,978 | 6.9909000 | 79.8830000 |
| Ratnapura | Sabaragamuwa | 47,832 | 6.6827800 | 80.3991700 |
| Badulla | Uva | 47,587 | 6.9895000 | 81.0557000 |
| Puttalam | North Western | 45,661 | 8.0362000 | 79.8283000 |
| Welisara | Western | 41,306 | 7.0281000 | 79.9014000 |
| Kalutara | Western | 38,000 | 6.5831000 | 79.9593000 |
| Bentota | Southern | 37,000 | 6.4259800 | 79.9957500 |
| Homagama | Western | 34,664 | 6.8440000 | 80.0024000 |
| Beruwala | Western | 34,250 | 6.4788000 | 79.9828000 |
| Panadura | Western | 33,735 | 6.7132000 | 79.9026000 |
| Mulleriyawa | Western | 33,540 | 6.9330000 | 79.9297000 |
| Kandana | Western | 33,424 | 7.0480000 | 79.8937000 |
| Ja Ela | Western | 32,175 | 7.0744000 | 79.8919000 |
| Wattala | Western | 30,725 | 6.9779000 | 79.8898000 |
| Peliyagoda | Western | 30,717 | 6.9685000 | 79.8836000 |
| Kelaniya | Western | 28,846 | 6.9553000 | 79.9220000 |
| Kurunegala | North Western | 28,571 | 7.4863000 | 80.3623000 |
| Nuwara Eliya | Central | 25,775 | 6.9707800 | 80.7828600 |
| Gampola | Central | 24,730 | 7.1643000 | 80.5696000 |
| Chilaw | North Western | 24,712 | 7.5758300 | 79.7952800 |
| Eravur Town | Eastern Province | 22,982 | 7.7782000 | 81.6038000 |
| Hanwella Ihala | Western | 22,918 | 6.9012000 | 80.0852000 |
| Weligama | Southern | 22,179 | 5.9750100 | 80.4296800 |
| Kataragama | Uva | 20,935 | 6.4134000 | 81.3346000 |
| Ambalangoda | Southern | 20,133 | 6.2355000 | 80.0538000 |
| Shanjeev Home | Eastern Province | 20,000 | 7.3821600 | 81.8419800 |
| Ampara | Eastern Province | 18,348 | 7.2975400 | 81.6820200 |
| Hatton | Central | 15,073 | 6.8916000 | 80.5955000 |
| Polonnaruwa | North Central | 13,900 | 7.9396500 | 81.0027400 |
| Kilinochchi | Northern Province | 13,006 | 9.3961000 | 80.3982000 |
| Tangalle | Southern | 10,497 | 6.0233800 | 80.7973800 |
| Monaragala | Uva | 10,236 | 6.8714000 | 81.3487000 |
| Gampaha | Western | 9,350 | 7.0897000 | 79.9925000 |
| Horana South | Western | 8,982 | 6.7159000 | 80.0626000 |
| Wattegama | Uva | 8,000 | 6.7989000 | 81.4808000 |
| Minuwangoda | Western | 7,772 | 7.1663000 | 79.9533000 |
| Horawala Junction | Western | 7,500 | 6.4808800 | 80.1270800 |
| Kuliyapitiya | North Western | 6,877 | 7.4688000 | 80.0401000 |
| Ella Town | Uva | 5,000 | 6.8756000 | 81.0463000 |
| Mihintale | North Central | 5,000 | 8.3593000 | 80.5103000 |
| Haputale | Uva | 4,721 | 6.7656600 | 80.9510400 |
| Talawakele | Central | 3,545 | 6.9371000 | 80.6581000 |
| Talpe | Southern | 3,000 | 5.9999000 | 80.2787000 |
| Koggala | Southern | 3,000 | 5.9886000 | 80.3286000 |
| Unawatuna | Southern | 2,000 | 6.0212000 | 80.2503000 |
| Hikkaduwa | Southern | 1,300 | 6.1407000 | 80.1012000 |
| Kadugannawa | Central | 1,214 | 7.2547000 | 80.5242000 |
| Sigiriya | Central | 1,001 | 7.9494600 | 80.7503700 |