| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saint Joseph's | city | Ireland | 52.54 | -9.08 | 249 | 1791 | |
| Saint Joseph’s | city | Ireland | 52.54 | -9.08 | 249 | 1791 | |
| Saint Lawrence | city | Ireland | 52.59 | -8.50 | 830 | 4069 | |
| Saint Oswald's | city | Ireland | 52.46 | -8.88 | 344 | 1647 | |
| Saint Oswald’s | city | Ireland | 52.46 | -8.88 | 344 | 1647 | |
| Saint Patrickswell | city | Ireland | 52.60 | -8.71 | 173 | 11112 | |
| Sandeville | city | Ireland | 52.65 | -8.55 | 272 | 20043 | |
| Scrowmore | city | Ireland | 52.31 | -8.21 | 830 | 2622 | |
| Seanghualainn | city | Ireland | 52.57 | -9.10 | 203 | 2204 | |
| Shanagolden | city | Ireland | 52.57 | -9.10 | 203 | 2204 | |
| Shaneath | city | Ireland | 52.42 | -9.01 | 209 | 3602 | |
| Shearins Cross | city | Ireland | 52.44 | -8.57 | 249 | 3687 | |
| Shelhan's Cross | city | Ireland | 52.57 | -8.54 | 278 | 5617 | |
| Shelhan’s Cross | city | Ireland | 52.57 | -8.54 | 278 | 5617 | |
| Sixmile Bridge | city | Ireland | 52.54 | -8.54 | 249 | 2590 | |
| Skool | city | Ireland | 52.55 | -8.57 | 200 | 2971 | |
| Slievereagh | city | Ireland | 52.38 | -8.43 | 997 | 2086 | |
| Spittle | city | Ireland | 52.38 | -8.34 | 830 | 2025 | |
| Spittle | city | Ireland | 52.32 | -8.42 | 830 | 1629 | |
| Stonehall | city | Ireland | 52.61 | -8.87 | 72 | 2495 | |
| Stonepark | city | Ireland | 52.58 | -8.54 | 295 | 7276 | |
| Strand | city | Ireland | 52.40 | -9.11 | 830 | 2022 | |
| Sun Ville | city | Ireland | 52.58 | -8.33 | 219 | 3301 |