| Sarsfield St, Mountmellick | — | 5 |
| Shannon Road, Mountrath | — | 8 |
| Shannon Street, Mountrath | — | 12 |
| Shanragh, Wolfhill | — | 7 |
| Silverbrook, Mountmellick | €207,000 | 14 |
| Silverglen, Mountmellick | €205,000 | 11 |
| Silverwood, Mountmellick | €186,000 | 26 |
| Skerry, Rosenallis | — | 5 |
| Sli na Mona, Edenderry Road | €228,595 | 9 |
| Sli Na Mona, Portarlington | — | 6 |
| Slieve Bloom Heights, Rathdowney | €235,000 | 14 |
| Snowberry, Sand Wood | €440,527 | 7 |
| Snowberry, Sandwood | €440,528 | 7 |
| Spa St, Portarlington | — | 5 |
| Spindlewood, Graiguecullen | €241,250 | 31 |
| Sruth Na Ghleanna, Killeshin | €308,400 | 45 |
| St Bridgets Place, Portlaoise | — | 9 |
| St Brigids Place, Portlaoise | €162,500 | 50 |
| St Fintans Terrace, Durrow | — | 6 |
| St Johns Square, Portlaoise | €189,750 | 15 |
| St Josephs Terrace, Portarlington | — | 6 |
| St. Brigid's Square, Portarlington | €154,500 | 18 |
| St. Fintan's Tce., Mountrath | — | 5 |
| St. Joseph's Terrace, Mountmellick | — | 12 |
| St. Michael's Park, Portarlington | €167,000 | 22 |
| Stanhope St, Ballinakill | — | 6 |
| Station Court, Portarlington | €272,500 | 16 |
| Station Court, Station Rd | €237,000 | 6 |
| Station Grove, Portarlington | €220,000 | 13 |
| Station Road, Portarlington | — | 20 |
| Stepping Stone Square, Maryborough Village | €237,885 | 6 |
| Stradbally Rd, Portlaoise | — | 9 |
| Stradbally Road, Timahoe | — | 5 |
| Stradbrook, Dublin Rd | — | 5 |
| Stradbrook, Portlaoise | €185,000 | 19 |
| Stradbrook, Stradbally Rd | €211,500 | 27 |
| Summerhill, Stradbally Road | — | 13 |
| Swan Rd, Durrow | — | 7 |
| The Showgrounds, Rathdowney | €215,000 | 15 |
| The Square, Ballinakill | — | 6 |
| The Square, Rathdowney | — | 5 |
| The Stables, Maryborough Village | €245,000 | 6 |
| The Sycamores, Kilnacourt Woods | — | 7 |