Population by Grama Niladhari division
| GN Division | Total population |
| Kirioya | 1378 |
| Ataragallewa | 2616 |
| Elahera | 2527 |
| Orubandisiyambalawa | 1713 |
| Heeratiya | 922 |
| Kumaraella | 1071 |
| Bakamuna | 2319 |
| Damanayaya | 2147 |
| Maluweyaya | 3032 |
| Koottapitiya South | 1480 |
| Koottapitiya North | 1046 |
| Sirikanduyaya | 1023 |
| Gangeyaya | 1531 |
| Sawmils | 788 |
| Segala | 2261 |
| Nikapitiya | 2143 |
| Sarubima | 1964 |
| Attanakadawala South | 1192 |
| Attanakadawala North | 1944 |
| Attanakadawala West | 858 |
| Ikiriwewa | 2679 |
| Madudamana | 1694 |
| Radavigeoya | 1569 |
| Kahatagahapitiya | 2064 |
| Konduruwawa | 1847 |
| Diyabeduma | 4261 |
| Ihakuluwewa | 2286 |
| Katukaliyawa | 1513 |
Population by Gender
| GN Division | Female | Male | Total Population |
| Kirioya | 688 | 690 | 1378 |
| Ataragallewa | 1299 | 1317 | 2616 |
| Elahera | 1264 | 1263 | 2527 |
| Orubandisiyambalawa | 871 | 842 | 1713 |
| Heeratiya | 464 | 458 | 922 |
| Kumaraella | 543 | 528 | 1071 |
| Bakamuna | 1156 | 1163 | 2319 |
| Damanayaya | 1120 | 1027 | 2147 |
| Maluweyaya | 1453 | 1579 | 3032 |
| Koottapitiya South | 756 | 724 | 1480 |
| Koottapitiya North | 509 | 537 | 1046 |
| Sirikanduyaya | 546 | 477 | 1023 |
| Gangeyaya | 775 | 756 | 1531 |
| Sawmils | 396 | 392 | 788 |
| Segala | 1180 | 1081 | 2261 |
| Nikapitiya | 1077 | 1066 | 2143 |
| Sarubima | 996 | 968 | 1964 |
| Attanakadawala South | 587 | 605 | 1192 |
| Attanakadawala North | 986 | 958 | 1944 |
| Attanakadawala West | 423 | 435 | 858 |
| Ikiriwewa | 1359 | 1320 | 2679 |
| Madudamana | 866 | 828 | 1694 |
| Radavigeoya | 789 | 780 | 1569 |
| Kahatagahapitiya | 1023 | 1041 | 2064 |
| Konduruwawa | 953 | 894 | 1847 |
| Diyabeduma | 2129 | 2132 | 4261 |
| Ihakuluwewa | 1149 | 1137 | 2286 |
| Katukaliyawa | 743 | 770 | 1513 |
