| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Samsstadhir | city | Iceland | 65.05 | -22.38 | 127 | 0 | |
| Sandhur | city | Iceland | 64.92 | -23.90 | 55 | 441 | |
| Sandur | city | Iceland | 64.92 | -23.90 | 55 | 441 | |
| Saurar | city | Iceland | 65.02 | -22.73 | 59 | 1021 | |
| Saxholl | city | Iceland | 64.85 | -23.95 | 180 | 11 | |
| Setberg | city | Iceland | 64.95 | -23.20 | 78 | 367 | |
| Setberg | city | Iceland | 65.03 | -22.50 | 452 | 0 | |
| Skalasnagi | city | Iceland | 64.83 | -24.03 | 0 | 0 | |
| Skardh | city | Iceland | 64.90 | -23.83 | 131 | 611 | |
| Skarð | city | Iceland | 64.90 | -23.83 | 131 | 611 | |
| Skerdhingsstadhir | city | Iceland | 64.93 | -23.38 | 328 | 1 | |
| Skerðingsstaðir | city | Iceland | 64.93 | -23.38 | 328 | 1 | |
| Skjaldartrodh | city | Iceland | 64.75 | -23.65 | 0 | 0 | |
| Skjaldartröð | city | Iceland | 64.75 | -23.65 | 0 | 0 | |
| Skjálg | city | Iceland | 64.83 | -22.28 | 114 | 0 | |
| Skjöldur | city | Iceland | 65.00 | -22.77 | 134 | 363 | |
| Skogar | city | Iceland | 64.77 | -22.20 | 190 | 0 | |
| Slitvindastadhir | city | Iceland | 64.87 | -23.05 | 974 | 0 | |
| Slitvindastaðir | city | Iceland | 64.87 | -23.05 | 974 | 0 | |
| Snorrastadhir | city | Iceland | 64.77 | -22.32 | 29 | 0 | |
| Snorrastaðir | city | Iceland | 64.77 | -22.32 | 29 | 0 | |
| Sodhulsholt | city | Iceland | 64.83 | -22.43 | 52 | 0 | |
| Spjör | city | Iceland | 64.97 | -23.22 | 75 | 160 | |
| Stadharbakki | city | Iceland | 65.02 | -22.82 | 75 | 139 | |
| Stadharstadhur | city | Iceland | 64.82 | -23.02 | 65 | 0 | |
| Stadhastadhur | city | Iceland | 64.82 | -23.02 | 65 | 0 | |
| Stakkhamar | city | Iceland | 64.80 | -22.77 | 0 | 0 | |
| Stapi | city | Iceland | 64.77 | -23.63 | 0 | 0 | |
| Staðarbakki | city | Iceland | 65.02 | -22.82 | 75 | 139 | |
| Staðarstaður | city | Iceland | 64.82 | -23.02 | 65 | 0 | |
| Staðastaður | city | Iceland | 64.82 | -23.02 | 65 | 0 | |
| Stekkjartrodh | city | Iceland | 64.97 | -23.20 | 272 | 151 | |
| Stekkjartröð | city | Iceland | 64.97 | -23.20 | 272 | 151 | |
| Stora Hraun | city | Iceland | 64.80 | -22.40 | 39 | 0 | |
| Stora-Hella | city | Iceland | 64.92 | -23.87 | 124 | 555 | |
| Stora-Thufa | city | Iceland | 64.83 | -22.58 | 124 | 0 | |
| Stori Kambur | city | Iceland | 64.82 | -23.57 | 19 | 0 | |
| Stori Langidalur | city | Iceland | 65.00 | -22.55 | 75 | 0 | |
| Straumfjardhartunga | city | Iceland | 64.83 | -22.73 | 42 | 0 | |
| Straumfjarðartunga | city | Iceland | 64.83 | -22.73 | 42 | 0 | |
| Straumur | city | Iceland | 65.05 | -22.53 | 39 | 0 | |
| Stykkisholmur | city | Iceland | 65.07 | -22.73 | 0 | 1201 | |
| Stóra-Virki | city | Iceland | 64.92 | -23.82 | 6 | 542 | |
| Stóra-Þúfa | city | Iceland | 64.83 | -22.58 | 124 | 0 | |
| Sudhur Bar | city | Iceland | 64.98 | -23.23 | 9 | 75 | |
| Suður Bár | city | Iceland | 64.98 | -23.23 | 9 | 75 | |
| Svarfhöll | city | Iceland | 64.85 | -22.58 | 187 | 0 | |
| Sveinsstadhir | city | Iceland | 64.90 | -23.80 | 321 | 607 | |
| Sveinsstaðir | city | Iceland | 64.90 | -23.80 | 321 | 607 | |
| Svelgsa | city | Iceland | 65.00 | -22.67 | 0 | 5 | |
| Sydhra Lagafell | city | Iceland | 64.83 | -22.87 | 65 | 0 | |
| Sydhra Skogarnes | city | Iceland | 64.78 | -22.58 | 0 | 0 | |
| Sydhri Raudhamelur | city | Iceland | 64.87 | -22.30 | 98 | 0 | |
| Sydhri Skogar | city | Iceland | 64.77 | -22.18 | 173 | 0 | |
| Sydhri Tunga | city | Iceland | 64.80 | -23.07 | 0 | 0 | |
| Sydhri-Gardhar | city | Iceland | 64.80 | -23.13 | 0 | 0 | |
| Sydhstu Gardhar | city | Iceland | 64.80 | -22.27 | 183 | 0 | |
| Syðra Lágafell | city | Iceland | 64.83 | -22.87 | 65 | 0 | |
| Syðra Skógarnes | city | Iceland | 64.78 | -22.58 | 0 | 0 | |
| Syðri Rauðamelur | city | Iceland | 64.87 | -22.30 | 98 | 0 | |
| Syðri Skógar | city | Iceland | 64.77 | -22.18 | 173 | 0 | |
| Syðri Tunga | city | Iceland | 64.80 | -23.07 | 0 | 0 | |
| Syðri-Garðar | city | Iceland | 64.80 | -23.13 | 0 | 0 | |
| Syðstu Garðar | city | Iceland | 64.80 | -22.27 | 183 | 0 | |
| Sámsstaðir | city | Iceland | 65.05 | -22.38 | 127 | 0 | |
| Söðulsholt | city | Iceland | 64.83 | -22.43 | 52 | 0 |