S
| Town and County | Population |
|---|---|
| Saggart, South Dublin | 588 |
| St. Johnston, Donegal | 470 |
| Sallins, Kildare | 2922 |
| Scarriff, Clare | 807 |
| Schull, Cork | 693 |
| Scotstown, Monaghan | 220 |
| Shanagarry, Cork | 291 |
| Shanagolden, Limerick | 373 |
| Shannon, Clare | 8228 |
| Shannon Environs, Clare | 333 |
| Shannonbridge, Offaly | 248 |
| Shercock, Cavan | 454 |
| Shillelagh, Wicklow | 278 |
| Shinrone, Offaly | 488 |
| Shrule, Mayo | 326 |
| Silvermines, Tipperary North | 257 |
| Sixmilebridge, Clare | 1327 |
| Skerries, Fingal | 9149 |
| Skibbereen Town, Cork | 2000 |
| Slane, Meath | 823 |
| Slieverue, Kilkenny | 461 |
| Sligo Borough, Sligo | 19735 |
| Smithborough, Monaghan | 240 |
| Sneem, Kerry | 285 |
| Spa, Kerry | 424 |
| Spiddle, Galway | 190 |
| Stamullen, Meath | 779 |
| Stradbally, Laois | 1178 |
| Stradbally, Waterford | 298 |
| Stratford-on-Slaney, Wicklow | 151 |
| Straffan, Kildare | 332 |
| Strandhill, Sligo | 1002 |
| Strokestown, Roscommon | 631 |
| Summerhill, Meath | 668 |
| Suncroft, Kildare | 498 |
| Swanlinbar, Cavan | 223 |
| Swinford, Mayo | 1497 |
| Swords, Fingal | 27175 |
Read more about this topic: List Of Towns In The Republic Of Ireland/2002 Census Records