| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sarpur | city | Iceland | 64.47 | -21.27 | 538 | 0 | |
| Saurbaer | city | Iceland | 64.41 | -21.63 | 0 | 0 | |
| Saurbær | city | Iceland | 64.41 | -21.63 | 0 | 0 | |
| Signyjarstadhir | city | Iceland | 64.68 | -21.22 | 393 | 3 | |
| Signýjarstaðir | city | Iceland | 64.68 | -21.22 | 393 | 3 | |
| Skardh | city | Iceland | 64.55 | -21.43 | 173 | 0 | |
| Skarð | city | Iceland | 64.55 | -21.43 | 173 | 0 | |
| Skeljabrekka | city | Iceland | 64.53 | -21.75 | 580 | 150 | |
| Skipanes | city | Iceland | 64.40 | -21.92 | 3 | 66 | |
| Skipaskagi | city | Iceland | 64.32 | -22.10 | 3 | 2920 | |
| Skogar | city | Iceland | 64.60 | -21.42 | 305 | 0 | |
| Skorrholt | city | Iceland | 64.40 | -21.93 | 0 | 80 | |
| Skáney | city | Iceland | 64.68 | -21.33 | 498 | 142 | |
| Snartastadhir | city | Iceland | 64.55 | -21.40 | 127 | 0 | |
| Snartastaðir | city | Iceland | 64.55 | -21.40 | 127 | 0 | |
| Solmundarhofdhi | city | Iceland | 64.31 | -22.05 | 42 | 5438 | |
| Stafholtsey | city | Iceland | 64.65 | -21.60 | 32 | 0 | |
| Stalpastadhir | city | Iceland | 64.52 | -21.45 | 193 | 20 | |
| Stalpostad | city | Iceland | 64.52 | -21.45 | 193 | 20 | |
| Stedhji | city | Iceland | 64.62 | -21.48 | 278 | 0 | |
| Steindorsstadhir | city | Iceland | 64.65 | -21.25 | 639 | 73 | |
| Steindórsstaðir | city | Iceland | 64.65 | -21.25 | 639 | 73 | |
| Steinsholt | city | Iceland | 64.42 | -21.80 | 108 | 0 | |
| Steðji | city | Iceland | 64.62 | -21.48 | 278 | 0 | |
| Stori-As | city | Iceland | 64.70 | -21.03 | 403 | 0 | |
| Storikropper | city | Iceland | 64.63 | -21.45 | 331 | 0 | |
| Storikroppur | city | Iceland | 64.63 | -21.45 | 331 | 0 | |
| Sturlureykir | city | Iceland | 64.67 | -21.38 | 95 | 7 | |
| Sturtureykin | city | Iceland | 64.67 | -21.38 | 95 | 7 | |
| Stálpastaðir | city | Iceland | 64.52 | -21.45 | 193 | 20 | |
| Stóra Drageyri | city | Iceland | 64.52 | -21.53 | 439 | 32 | |
| Stóra Fellsöxl | city | Iceland | 64.37 | -21.83 | 131 | 39 | |
| Stóri Botn | city | Iceland | 64.38 | -21.30 | 298 | 0 | |
| Stóri-Lambhagi | city | Iceland | 64.40 | -21.83 | 98 | 14 | |
| Sudhurhverir | city | Iceland | 64.70 | -21.25 | 193 | 41 | |
| Suðurhverir | city | Iceland | 64.70 | -21.25 | 193 | 41 | |
| Svangi | city | Iceland | 64.52 | -21.45 | 193 | 20 | |
| Svarfhóll | city | Iceland | 64.42 | -21.70 | 606 | 0 | |
| Sydhstuffossar | city | Iceland | 64.53 | -21.70 | 246 | 0 | |
| Sydhstufossar | city | Iceland | 64.53 | -21.70 | 246 | 0 | |
| Syðstuffossar | city | Iceland | 64.53 | -21.70 | 246 | 0 | |
| Syðstufossar | city | Iceland | 64.53 | -21.70 | 246 | 0 | |
| Sólmundarhöfði | city | Iceland | 64.31 | -22.05 | 42 | 5438 | |
| Súlunes | city | Iceland | 64.40 | -21.98 | 65 | 72 |