Kalmunai (incl. Sainthamarathu)'s 2026 population is now estimated at 107,090. In 2025, the population of Kalmunai (incl. Sainthamarathu) was 106,559. Kalmunai (incl. Sainthamarathu) has grown by 531 in the last year, which represents a 0.5% annual change. These population values and projections come from World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Colombo | 468,377 | -1.28% |
| Kaduwela (Battaramulla) | 319,383 | 1.71% |
| Maharagama | 211,706 | 0.54% |
| Negombo | 174,048 | 1.44% |
| Moratuwa | 157,164 | -0.49% |
| Dehiwala-Mount Lavinia | 155,896 | -1.19% |
| Kalmunai (incl. Sainthamarathu) | 107,090 | 0.5% |
| Sri Jayawardenepura | 98,062 | -0.68% |
| Batticaloa | 94,388 | 0.65% |
| Kandy | 86,895 | -0.91% |
| Galle | 81,570 | -0.4% |
| Matara | 71,650 | -0.25% |
| Gampaha | 69,141 | 0.74% |
| Jaffna | 68,075 | -1.22% |
| Gampola | 66,672 | 4.12% |
| Kolonnawa | 66,612 | 0.74% |
| Puttalam | 50,775 | 0.79% |
| Trincomalee | 50,293 | 0.28% |
| Kattankudy (Kathankudi) | 48,819 | 1.37% |
| Ratnapura | 48,305 | 0.18% |
| Katunayake (-Seeduwa) | 48,118 | -1.67% |
| Anuradhapura | 47,519 | -0.45% |
| Hambantota | 46,792 | 5.13% |
| Seethawakapura (Avissawella) | 46,650 | 3.13% |
| Beruwala | 44,821 | 1.23% |
| Badulla | 43,859 | 0.27% |
| Matale | 36,476 | 0% |
| Ja-Ela | 31,647 | 0.09% |
| Ampara | 30,014 | 2.08% |
| Wattala-Mabole | 27,020 | -0.26% |
| Kalutara | 26,977 | -1.3% |
| Panadura | 26,274 | -0.96% |
| Kadugannawa | 25,482 | 5.13% |
| Peliyagoda | 25,228 | -0.68% |
| Balangoda | 24,617 | 2.89% |
| Weligama | 23,156 | 0.24% |
| Nuwara Eliya | 21,930 | -0.58% |
| Kurunegala | 20,933 | -1.21% |
| Ambalangoda | 20,339 | 0.12% |
| Vavuniya | 20,325 | -3.77% |
| Chilaw | 18,472 | -1.06% |
| Hatton-Dickoya | 15,016 | 0.21% |
| Kegalle | 14,645 | -0.62% |
| Nawalapitiya | 13,094 | -0.13% |
| Horana | 10,086 | 0.39% |
| Wattegama | 8,575 | 0.36% |
| Minuwangoda | 7,363 | -0.16% |
| Tangalle | 6,482 | -1.89% |
| Thalawakele-Lindula | 6,246 | 2.08% |
| Haputale | 6,013 | 0.92% |
| Kuliyapitiya | 4,569 | -1.32% |
