| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saebol | city | Iceland | 65.87 | -18.08 | 226 | 0 | |
| Saltvik | city | Iceland | 66.00 | -17.37 | 328 | 563 | |
| Sandhagagirding | city | Iceland | 65.58 | -17.50 | 570 | 0 | |
| Sandhaugar | city | Iceland | 65.58 | -17.50 | 570 | 0 | |
| Sandholt | city | Iceland | 66.08 | -17.33 | 118 | 1182 | |
| Sandhólar | city | Iceland | 66.18 | -17.22 | 200 | 3 | |
| Sandur | city | Iceland | 65.95 | -17.55 | 26 | 0 | |
| Sandvík | city | Iceland | 65.50 | -17.43 | 1263 | 0 | |
| Saurbruargerdhi | city | Iceland | 65.83 | -18.07 | 318 | 0 | |
| Saurbrúargerði | city | Iceland | 65.83 | -18.07 | 318 | 0 | |
| Selland | city | Iceland | 65.60 | -17.78 | 639 | 0 | |
| Sellandahús | city | Iceland | 65.45 | -17.08 | 1292 | 0 | |
| Sigluvík | city | Iceland | 65.72 | -18.08 | 0 | 2305 | |
| Sigridharstadhir | city | Iceland | 65.75 | -17.78 | 2434 | 0 | |
| Sigríðarstaðir | city | Iceland | 65.75 | -17.78 | 2434 | 0 | |
| Sigurdharstadhir | city | Iceland | 65.52 | -17.45 | 971 | 0 | |
| Sigurðarstaðir | city | Iceland | 65.52 | -17.45 | 971 | 0 | |
| Silalaekur | city | Iceland | 65.97 | -17.50 | 26 | 0 | |
| Skardh | city | Iceland | 65.88 | -17.98 | 209 | 0 | |
| Skarð | city | Iceland | 65.88 | -17.98 | 209 | 0 | |
| Skogar | city | Iceland | 65.73 | -17.93 | 291 | 36 | |
| Skogar | city | Iceland | 65.93 | -17.30 | 485 | 0 | |
| Skordh | city | Iceland | 65.95 | -17.32 | 351 | 31 | |
| Skridhuland | city | Iceland | 65.83 | -17.48 | 144 | 0 | |
| Skridhusel | city | Iceland | 65.87 | -17.50 | 262 | 0 | |
| Skriðuland | city | Iceland | 65.83 | -17.48 | 144 | 0 | |
| Skriðusel | city | Iceland | 65.87 | -17.50 | 262 | 0 | |
| Skuggabjörg | city | Iceland | 65.87 | -17.93 | 160 | 0 | |
| Skutustadhir | city | Iceland | 65.57 | -17.03 | 912 | 0 | |
| Skógarsel | city | Iceland | 65.68 | -17.43 | 708 | 0 | |
| Skörð | city | Iceland | 65.95 | -17.32 | 351 | 31 | |
| Skútustaðir | city | Iceland | 65.57 | -17.03 | 912 | 0 | |
| Snaebjarnarstadhir | city | Iceland | 65.55 | -17.70 | 839 | 0 | |
| Snæbjarnarstaðir | city | Iceland | 65.55 | -17.70 | 839 | 0 | |
| Sorlastadhir | city | Iceland | 65.57 | -17.68 | 1263 | 0 | |
| Stadharholt | city | Iceland | 65.87 | -17.55 | 49 | 0 | |
| Stafn | city | Iceland | 65.63 | -17.32 | 666 | 0 | |
| Stafnsholt | city | Iceland | 65.58 | -17.32 | 1148 | 0 | |
| Staðarholt | city | Iceland | 65.87 | -17.55 | 49 | 0 | |
| Steinkirkja | city | Iceland | 65.67 | -17.88 | 567 | 8 | |
| Storatunga | city | Iceland | 65.38 | -17.35 | 997 | 0 | |
| Storu-Reykir | city | Iceland | 65.90 | -17.30 | 856 | 0 | |
| Storutjarnir | city | Iceland | 65.72 | -17.73 | 387 | 0 | |
| Stóruvellir | city | Iceland | 65.50 | -17.48 | 803 | 0 | |
| Stöng | city | Iceland | 65.57 | -17.25 | 1046 | 0 | |
| Sund | city | Iceland | 65.92 | -18.15 | 0 | 161 | |
| Svaedhi | city | Iceland | 65.93 | -18.20 | 656 | 136 | |
| Svalbardh | city | Iceland | 65.75 | -18.08 | 288 | 190 | |
| Svalbarð | city | Iceland | 65.75 | -18.08 | 288 | 190 | |
| Svartárkot | city | Iceland | 65.33 | -17.25 | 1332 | 0 | |
| Sveinsstrond | city | Iceland | 65.55 | -17.08 | 935 | 0 | |
| Svæði | city | Iceland | 65.93 | -18.20 | 656 | 136 | |
| Svínárnes | city | Iceland | 66.00 | -18.25 | 846 | 0 | |
| Sydhra-Fjall | city | Iceland | 65.83 | -17.42 | 85 | 0 | |
| Sydhri-Holl | city | Iceland | 65.85 | -17.87 | 853 | 0 | |
| Sydhri-Leikskalaa | city | Iceland | 65.90 | -17.58 | 242 | 0 | |
| Sydhri-Neslond | city | Iceland | 65.62 | -16.97 | 905 | 43 | |
| Sydhri-Tunga | city | Iceland | 66.10 | -17.25 | 613 | 452 | |
| Syðra-Fjall | city | Iceland | 65.83 | -17.42 | 85 | 0 | |
| Syðri-Hóll | city | Iceland | 65.85 | -17.87 | 853 | 0 | |
| Syðri-Leikskálaá | city | Iceland | 65.90 | -17.58 | 242 | 0 | |
| Syðri-Neslönd | city | Iceland | 65.62 | -16.97 | 905 | 43 | |
| Syðri-Tunga | city | Iceland | 66.10 | -17.25 | 613 | 452 | |
| Sæból | city | Iceland | 65.87 | -18.08 | 226 | 0 | |
| Sílalækur | city | Iceland | 65.97 | -17.50 | 26 | 0 | |
| Sörlastaðir | city | Iceland | 65.57 | -17.68 | 1263 | 0 | |
| Sýrnes | city | Iceland | 65.80 | -17.43 | 95 | 0 |