| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saevarendi | city | Iceland | 64.92 | -14.05 | 331 | 498 | |
| Sandvík | city | Iceland | 65.10 | -13.55 | 3 | 0 | |
| Sandvíkursel | city | Iceland | 65.08 | -13.55 | 508 | 0 | |
| Saudhhagi | city | Iceland | 65.13 | -14.57 | 318 | 0 | |
| Sauðhagi | city | Iceland | 65.13 | -14.57 | 318 | 0 | |
| Seldalur | city | Iceland | 65.10 | -13.85 | 1053 | 10 | |
| Seljateigur | city | Iceland | 65.03 | -14.27 | 36 | 194 | |
| Sellátur | city | Iceland | 65.05 | -13.92 | 164 | 183 | |
| Selnes | city | Iceland | 64.78 | -14.00 | 0 | 191 | |
| Selstadhir | city | Iceland | 65.02 | -14.10 | 462 | 295 | |
| Selstaðir | city | Iceland | 65.02 | -14.10 | 462 | 295 | |
| Sigmundarhus | city | Iceland | 65.05 | -13.90 | 498 | 83 | |
| Skalateigur | city | Iceland | 65.13 | -13.80 | 85 | 379 | |
| Skalavik | city | Iceland | 64.90 | -13.75 | 0 | 0 | |
| Skali | city | Iceland | 64.77 | -14.38 | 505 | 0 | |
| Skjoldolfsstadhir | city | Iceland | 64.78 | -14.20 | 262 | 0 | |
| Skjöldólfsstaðir | city | Iceland | 64.78 | -14.20 | 262 | 0 | |
| Skogar | city | Iceland | 65.20 | -13.95 | 3 | 169 | |
| Skorrastadhur | city | Iceland | 65.12 | -13.78 | 790 | 509 | |
| Skorrastaður | city | Iceland | 65.12 | -13.78 | 790 | 509 | |
| Skridah | city | Iceland | 64.80 | -14.30 | 1994 | 0 | |
| Skridha | city | Iceland | 64.80 | -14.30 | 1994 | 0 | |
| Skridhustekkur | city | Iceland | 64.82 | -14.32 | 226 | 0 | |
| Skriða | city | Iceland | 64.80 | -14.30 | 1994 | 0 | |
| Skriðustekkur | city | Iceland | 64.82 | -14.32 | 226 | 0 | |
| Skuggahlidh | city | Iceland | 65.12 | -13.82 | 288 | 186 | |
| Skuggahlíð | city | Iceland | 65.12 | -13.82 | 288 | 186 | |
| Slétta | city | Iceland | 65.03 | -14.25 | 9 | 299 | |
| Snaehvammur | city | Iceland | 64.80 | -13.95 | 141 | 99 | |
| Snjóholt | city | Iceland | 65.33 | -14.35 | 390 | 183 | |
| Snæhvammur | city | Iceland | 64.80 | -13.95 | 141 | 99 | |
| Somastadhir | city | Iceland | 65.03 | -14.10 | 3 | 350 | |
| Spath | city | Iceland | 65.02 | -13.83 | 0 | 0 | |
| Spaþ | city | Iceland | 65.02 | -13.83 | 0 | 0 | |
| Starmyri | city | Iceland | 64.53 | -14.55 | 39 | 0 | |
| Steinaborg | city | Iceland | 64.70 | -14.20 | 42 | 0 | |
| Stodh | city | Iceland | 64.85 | -13.97 | 183 | 124 | |
| Stodhvarfjordhur | city | Iceland | 64.83 | -13.88 | 0 | 252 | |
| Stora Breidavik | city | Iceland | 65.02 | -13.82 | 200 | 0 | |
| Stora-Breidhavik | city | Iceland | 65.02 | -13.82 | 200 | 0 | |
| Stora-Sandfell | city | Iceland | 65.13 | -14.55 | 380 | 0 | |
| Streiti | city | Iceland | 64.72 | -14.03 | 0 | 0 | |
| Strönd | city | Iceland | 65.17 | -14.60 | 321 | 0 | |
| Strönd | city | Iceland | 65.15 | -13.73 | 6 | 784 | |
| Strýta | city | Iceland | 64.67 | -14.38 | 249 | 0 | |
| Studhlar | city | Iceland | 65.10 | -13.58 | 961 | 0 | |
| Studhlar | city | Iceland | 65.02 | -14.32 | 475 | 37 | |
| Stuðlar | city | Iceland | 65.10 | -13.58 | 961 | 0 | |
| Stuðlar | city | Iceland | 65.02 | -14.32 | 475 | 37 | |
| Stóra-Breiðavík | city | Iceland | 65.02 | -13.82 | 200 | 0 | |
| Stórhóll | city | Iceland | 64.55 | -14.65 | 55 | 0 | |
| Stöð | city | Iceland | 64.85 | -13.97 | 183 | 124 | |
| Stöðvarfjörður | city | Iceland | 64.83 | -13.88 | 0 | 252 | |
| Sveinsstadhir | city | Iceland | 65.12 | -13.68 | 3 | 594 | |
| Sveinsstadir | city | Iceland | 65.12 | -13.68 | 3 | 594 | |
| Sveinsstaðir | city | Iceland | 65.12 | -13.68 | 3 | 594 | |
| Svinaskali | city | Iceland | 65.07 | -13.98 | 810 | 515 | |
| Syelnsstadhir | city | Iceland | 65.12 | -13.68 | 3 | 594 | |
| Syelnsstaðir | city | Iceland | 65.12 | -13.68 | 3 | 594 | |
| Sævarendi | city | Iceland | 64.92 | -14.05 | 331 | 498 | |
| Sómastaðir | city | Iceland | 65.03 | -14.10 | 3 | 350 |