| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sagarapura Colony | city | Central | Sri Lanka | 7.06 | 80.84 | 5869 | 44655 |
| Sahodaragama | city | Central | Sri Lanka | 7.33 | 80.48 | 830 | 67362 |
| Saint Helano Colony | city | Central | Sri Lanka | 7.24 | 80.52 | 2050 | 168457 |
| Saint Joneswatta | city | Central | Sri Lanka | 7.02 | 80.83 | 6207 | 48240 |
| Saint Theressawatta | city | Central | Sri Lanka | 7.05 | 80.88 | 4494 | 43966 |
| Samagipura | city | Central | Sri Lanka | 7.07 | 80.55 | 2089 | 72295 |
| Samagipura Colony | city | Central | Sri Lanka | 7.03 | 80.84 | 6026 | 46979 |
| Saman Eliya | city | Central | Sri Lanka | 7.00 | 80.72 | 5869 | 55502 |
| Samanalagala | city | Central | Sri Lanka | 6.81 | 80.50 | 6246 | 45755 |
| Samanalagama | city | Central | Sri Lanka | 6.89 | 80.60 | 4189 | 54954 |
| Samaneliya Colony | city | Central | Sri Lanka | 7.02 | 80.73 | 5869 | 54425 |
| Samanpura | city | Central | Sri Lanka | 6.99 | 80.64 | 4189 | 56142 |
| Samarakonehena | city | Central | Sri Lanka | 7.18 | 80.62 | 2509 | 87999 |
| Samimale | city | Central | Sri Lanka | 6.79 | 80.62 | 5029 | 49934 |
| Sanchimale | city | Central | Sri Lanka | 6.83 | 80.66 | 5078 | 55018 |
| Sangilipalam | city | Central | Sri Lanka | 7.06 | 80.68 | 3349 | 56980 |
| Sangilipalama | city | Central | Sri Lanka | 7.06 | 80.68 | 3349 | 56980 |
| Sanquharwatta | city | Central | Sri Lanka | 7.12 | 80.60 | 2890 | 97948 |
| Seetha Eliya | city | Central | Sri Lanka | 6.94 | 80.80 | 6709 | 58774 |
| Seethawaliwatta | city | Central | Sri Lanka | 7.18 | 80.64 | 2509 | 78232 |
| Selagama | city | Central | Sri Lanka | 7.59 | 80.59 | 1827 | 60267 |
| Selagama Colony | city | Central | Sri Lanka | 7.59 | 80.59 | 1827 | 60267 |
| Selwakanda | city | Central | Sri Lanka | 7.00 | 80.89 | 4189 | 52965 |
| Senarathpura | city | Central | Sri Lanka | 7.01 | 80.88 | 5029 | 49703 |
| Senside | city | Central | Sri Lanka | 6.91 | 80.63 | 5029 | 55528 |
| Serasunthenna | city | Central | Sri Lanka | 7.16 | 80.87 | 1053 | 39548 |
| Serudandapola | city | Central | Sri Lanka | 7.73 | 80.67 | 882 | 13482 |
| Serugolla | city | Central | Sri Lanka | 7.46 | 80.65 | 1765 | 85548 |
| Shamrock Colony | city | Central | Sri Lanka | 7.06 | 80.53 | 2509 | 67313 |
| Shantipura | city | Central | Sri Lanka | 6.98 | 80.74 | 6889 | 54917 |
| Sheen Colony | city | Central | Sri Lanka | 6.99 | 80.66 | 5029 | 56066 |
| Sheengama | city | Central | Sri Lanka | 6.99 | 80.70 | 5400 | 55840 |
| Sigiriya | city | Central | Sri Lanka | 7.95 | 80.74 | 1046 | 13426 |
| Silwatgama | city | Central | Sri Lanka | 7.15 | 80.74 | 2857 | 59298 |
| Sinapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 112637 |
| Sindurankanda | city | Central | Sri Lanka | 7.24 | 80.55 | 1991 | 183361 |
| Singhapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 119920 |
| Sinhapitiya | city | Central | Sri Lanka | 7.17 | 80.55 | 2037 | 119920 |
| Sinharagama | city | Central | Sri Lanka | 7.25 | 80.71 | 1889 | 133019 |
| Sirangahawatta | city | Central | Sri Lanka | 7.54 | 80.70 | 2933 | 35127 |
| Sirimalwatta | city | Central | Sri Lanka | 7.30 | 80.65 | 1669 | 193339 |
| Sita Eliya | city | Central | Sri Lanka | 6.94 | 80.80 | 6709 | 58774 |
| Sitagangula | city | Central | Sri Lanka | 6.82 | 80.50 | 5869 | 44491 |
| Sivurupitiya | city | Central | Sri Lanka | 7.33 | 80.51 | 1089 | 96228 |
| Siyambalagahawela | city | Central | Sri Lanka | 7.72 | 80.60 | 1145 | 30834 |
| Siyambalagastenna | city | Central | Sri Lanka | 7.32 | 80.64 | 1669 | 187159 |
| Siyambalagoda | city | Central | Sri Lanka | 7.21 | 80.56 | 1961 | 158084 |
| Siyambalagoda | city | Central | Sri Lanka | 7.28 | 80.54 | 2001 | 167338 |
| Siyambalapitiya | city | Central | Sri Lanka | 7.28 | 80.63 | 1893 | 207381 |
| Siyambalawewa | city | Central | Sri Lanka | 7.80 | 80.57 | 1669 | 36988 |
| Siyambalawewa | city | Central | Sri Lanka | 7.83 | 80.65 | 843 | 27006 |
| Siyambalawewa | city | Central | Sri Lanka | 7.98 | 80.72 | 830 | 12322 |
| Siyurupitiya | city | Central | Sri Lanka | 7.33 | 80.51 | 1089 | 96228 |
| Sogamawatta | city | Central | Sri Lanka | 7.12 | 80.63 | 3349 | 93139 |
| Sogamawatta | city | Central | Sri Lanka | 7.13 | 80.63 | 3349 | 91918 |
| Sommerset | city | Central | Sri Lanka | 6.93 | 80.72 | 5029 | 55866 |
| Springkell | city | Central | Sri Lanka | 6.94 | 80.60 | 4189 | 56593 |
| Staford Watta | city | Central | Sri Lanka | 7.03 | 80.90 | 2811 | 48631 |
| Stellenbergwatta | city | Central | Sri Lanka | 7.11 | 80.69 | 5029 | 63767 |
| Suduhakurugama | city | Central | Sri Lanka | 7.61 | 80.60 | 1863 | 59559 |
| Suriyagahapatana | city | Central | Sri Lanka | 7.00 | 80.90 | 3717 | 55808 |
| Suriyagoda | city | Central | Sri Lanka | 7.28 | 80.58 | 1988 | 198613 |
| Suwandelpotha | city | Central | Sri Lanka | 7.05 | 80.78 | 4232 | 49403 |