| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saebol | city | Iceland | 65.70 | -21.47 | 613 | 39 | |
| Sandnes | city | Iceland | 65.73 | -21.63 | 213 | 22 | |
| Seljanes | city | Iceland | 66.07 | -21.65 | 0 | 0 | |
| Skardh | city | Iceland | 65.78 | -21.57 | 52 | 58 | |
| Skarð | city | Iceland | 65.78 | -21.57 | 52 | 58 | |
| Skeljavík | city | Iceland | 65.68 | -21.70 | 65 | 344 | |
| Skjaldabjarnarvík | city | Iceland | 66.25 | -21.95 | 0 | 0 | |
| Skridhnesenni | city | Iceland | 65.55 | -21.30 | 3 | 0 | |
| Skriðnesenni | city | Iceland | 65.55 | -21.30 | 3 | 0 | |
| Skálholtsvík | city | Iceland | 65.47 | -21.27 | 0 | 0 | |
| Smáhamrar | city | Iceland | 65.63 | -21.48 | 390 | 7 | |
| Snartartunga | city | Iceland | 65.43 | -21.48 | 242 | 0 | |
| Stadhur | city | Iceland | 65.77 | -21.83 | 160 | 0 | |
| Staður | city | Iceland | 65.77 | -21.83 | 160 | 0 | |
| Steinadalur | city | Iceland | 65.55 | -21.55 | 767 | 0 | |
| Steinstún | city | Iceland | 66.05 | -21.57 | 3 | 0 | |
| Stora Avik | city | Iceland | 66.02 | -21.43 | 141 | 0 | |
| Stora Fjardharhorn | city | Iceland | 65.55 | -21.47 | 679 | 0 | |
| Stora-Hvalsa | city | Iceland | 65.38 | -21.20 | 3 | 0 | |
| Stóra Fjarðarhorn | city | Iceland | 65.55 | -21.47 | 679 | 0 | |
| Sunndalur | city | Iceland | 65.80 | -21.62 | 219 | 26 | |
| Svansholl | city | Iceland | 65.78 | -21.53 | 45 | 54 | |
| Sæból | city | Iceland | 65.70 | -21.47 | 613 | 39 |