| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saint Anns Wells | city | Ireland | 53.23 | -6.35 | 984 | 27935 | |
| Saint Catharine's | city | Ireland | 52.87 | -8.60 | 331 | 1144 | |
| Saint Catharine’s | city | Ireland | 52.87 | -8.60 | 331 | 1144 | |
| Saint Catherines | city | Ireland | 52.87 | -8.60 | 331 | 1144 | |
| Saint Johns Port | city | Ireland | 54.33 | -8.60 | 0 | 1676 | |
| Salrock | city | Ireland | 53.60 | -9.85 | 472 | 529 | |
| Saundersville | city | Ireland | 52.97 | -6.68 | 518 | 2738 | |
| Scardaun | city | Ireland | 53.65 | -9.00 | 393 | 1902 | |
| Scartaglen | city | Ireland | 52.18 | -9.40 | 488 | 1739 | |
| Scartaglin | city | Ireland | 52.18 | -9.40 | 488 | 1739 | |
| Scrabby | city | Ireland | 53.87 | -7.53 | 226 | 1554 | |
| Scrahan | city | Ireland | 52.40 | -9.37 | 410 | 1625 | |
| Scramoge | city | Ireland | 53.77 | -8.05 | 249 | 1462 | |
| Scregg East | city | Ireland | 53.53 | -8.57 | 249 | 1440 | |
| Scregg West | city | Ireland | 53.53 | -8.58 | 249 | 1442 | |
| Seartaglin | city | Ireland | 52.18 | -9.40 | 488 | 1739 | |
| Seltannaveeny | city | Ireland | 54.10 | -8.12 | 492 | 901 | |
| Seltannavenny | city | Ireland | 54.10 | -8.12 | 492 | 901 | |
| Shannaghmore | city | Ireland | 53.60 | -8.60 | 249 | 1444 | |
| Shanvally | city | Ireland | 53.78 | -7.92 | 216 | 1624 | |
| Sheshia | city | Ireland | 53.10 | -9.07 | 223 | 644 | |
| Silver Stream | city | Ireland | 54.27 | -6.92 | 213 | 6382 | |
| Slievenakilla | city | Ireland | 54.15 | -7.93 | 1033 | 314 | |
| Spancelhill | city | Ireland | 52.87 | -8.90 | 370 | 2308 | |
| Spear Vale | city | Ireland | 53.92 | -7.00 | 882 | 2892 | |
| Srah | city | Ireland | 53.68 | -9.33 | 193 | 528 | |
| Srahduggaun | city | Ireland | 54.00 | -9.73 | 239 | 213 | |
| Stonetown | city | Ireland | 53.62 | -8.55 | 249 | 1574 | |
| Streamstown | city | Ireland | 53.43 | -7.58 | 334 | 1346 | |
| Street | city | Ireland | 53.67 | -7.48 | 232 | 980 | |
| Stroove | city | Ireland | 55.22 | -6.93 | 0 | 132 | |
| Summerville | city | Ireland | 53.80 | -7.37 | 239 | 1144 |