| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Samsstadhir | city | Iceland | 63.75 | -20.12 | 538 | 95 | |
| Sandholaferja | city | Iceland | 63.82 | -20.68 | 3 | 11 | |
| Saudhholt | city | Iceland | 63.87 | -20.68 | 6 | 0 | |
| Saudhhusvollur | city | Iceland | 63.58 | -19.93 | 49 | 18 | |
| Saurbaer | city | Iceland | 63.98 | -20.43 | 232 | 0 | |
| Saurbær | city | Iceland | 63.98 | -20.43 | 232 | 0 | |
| Sauðholt | city | Iceland | 63.87 | -20.68 | 6 | 0 | |
| Sauðhúsvöllur | city | Iceland | 63.58 | -19.93 | 49 | 18 | |
| Selalaekur | city | Iceland | 63.80 | -20.40 | 59 | 428 | |
| Selalækur | city | Iceland | 63.80 | -20.40 | 59 | 428 | |
| Seljaland | city | Iceland | 63.60 | -19.98 | 52 | 0 | |
| Seljalandssel | city | Iceland | 63.58 | -20.00 | 36 | 0 | |
| Seljavellir | city | Iceland | 63.57 | -19.63 | 416 | 0 | |
| Selkot | city | Iceland | 63.55 | -19.62 | 331 | 0 | |
| Selsund | city | Iceland | 63.93 | -19.95 | 452 | 20 | |
| Sigluvík | city | Iceland | 63.67 | -20.47 | 3 | 0 | |
| Sitjandi | city | Iceland | 63.52 | -19.62 | 26 | 0 | |
| Skammbeinsstadhir | city | Iceland | 63.95 | -20.37 | 321 | 0 | |
| Skammbeinsstaðir | city | Iceland | 63.95 | -20.37 | 321 | 0 | |
| Skardh | city | Iceland | 64.00 | -20.12 | 311 | 0 | |
| Skardh | city | Iceland | 63.75 | -20.63 | 36 | 130 | |
| Skardhshlidh | city | Iceland | 63.52 | -19.57 | 26 | 0 | |
| Skardhssel | city | Iceland | 64.05 | -20.13 | 387 | 0 | |
| Skardshlidh | city | Iceland | 63.52 | -19.57 | 26 | 0 | |
| Skardshlíð | city | Iceland | 63.52 | -19.57 | 26 | 0 | |
| Skarfanes | city | Iceland | 64.07 | -19.98 | 439 | 35 | |
| Skarð | city | Iceland | 64.00 | -20.12 | 311 | 0 | |
| Skarð | city | Iceland | 63.75 | -20.63 | 36 | 130 | |
| Skarðshlíð | city | Iceland | 63.52 | -19.57 | 26 | 0 | |
| Skarðssel | city | Iceland | 64.05 | -20.13 | 387 | 0 | |
| Skeggjastadhir | city | Iceland | 63.72 | -20.48 | 6 | 0 | |
| Skeggjastaðir | city | Iceland | 63.72 | -20.48 | 6 | 0 | |
| Skidhbakki | city | Iceland | 63.60 | -20.25 | 16 | 186 | |
| Skipagerdhi | city | Iceland | 63.65 | -20.40 | 3 | 104 | |
| Skipagerði | city | Iceland | 63.65 | -20.40 | 3 | 104 | |
| Skiðbakki | city | Iceland | 63.60 | -20.25 | 16 | 186 | |
| Skumsstadhir | city | Iceland | 63.70 | -20.50 | 6 | 0 | |
| Skálakot | city | Iceland | 63.57 | -19.80 | 62 | 0 | |
| Skúmsstaðir | city | Iceland | 63.70 | -20.50 | 6 | 0 | |
| Sleif | city | Iceland | 63.67 | -20.43 | 3 | 72 | |
| Snjallshofdhi | city | Iceland | 63.87 | -20.30 | 193 | 17 | |
| Snjallshöfði | city | Iceland | 63.87 | -20.30 | 193 | 17 | |
| Snjallsteinshofdhi | city | Iceland | 63.87 | -20.30 | 193 | 17 | |
| Snjallsteinshöfði | city | Iceland | 63.87 | -20.30 | 193 | 17 | |
| Snotra | city | Iceland | 63.60 | -20.25 | 16 | 186 | |
| Spaekill | city | Iceland | 63.58 | -20.17 | 19 | 0 | |
| Spækill | city | Iceland | 63.58 | -20.17 | 19 | 0 | |
| Steinar | city | Iceland | 63.55 | -19.72 | 354 | 0 | |
| Steinmodharbaer | city | Iceland | 63.63 | -20.07 | 55 | 0 | |
| Steinmóðarbær | city | Iceland | 63.63 | -20.07 | 55 | 0 | |
| Stokkalaekur | city | Iceland | 63.80 | -20.10 | 433 | 0 | |
| Stokkalækur | city | Iceland | 63.80 | -20.10 | 433 | 0 | |
| Stora-Bakkakot | city | Iceland | 63.77 | -20.45 | 22 | 30 | |
| Stora-Hildisey | city | Iceland | 63.62 | -20.25 | 22 | 186 | |
| Storamork | city | Iceland | 63.67 | -19.90 | 364 | 165 | |
| Stori-Dalur | city | Iceland | 63.63 | -19.95 | 1026 | 60 | |
| Storidalur | city | Iceland | 63.63 | -19.95 | 1026 | 60 | |
| Storofshvoll | city | Iceland | 63.75 | -20.22 | 124 | 634 | |
| Storolfshvoll | city | Iceland | 63.75 | -20.22 | 124 | 634 | |
| Strandarhofudh | city | Iceland | 63.70 | -20.27 | 59 | 274 | |
| Strandarhöfuð | city | Iceland | 63.70 | -20.27 | 59 | 274 | |
| Strönd | city | Iceland | 63.68 | -20.30 | 52 | 24 | |
| Stufholt | city | Iceland | 63.98 | -20.38 | 308 | 0 | |
| Stífla | city | Iceland | 63.68 | -20.23 | 55 | 86 | |
| Stóraborg | city | Iceland | 63.50 | -19.63 | 0 | 0 | |
| Stórahof | city | Iceland | 63.78 | -20.20 | 137 | 461 | |
| Stóruvellir | city | Iceland | 63.98 | -20.15 | 301 | 0 | |
| Sudhur-Nyibaer | city | Iceland | 63.72 | -20.60 | 3 | 14 | |
| Sumarlidhabaer | city | Iceland | 63.90 | -20.52 | 137 | 0 | |
| Sumarliðabær | city | Iceland | 63.90 | -20.52 | 137 | 0 | |
| Suður-Nýibær | city | Iceland | 63.72 | -20.60 | 3 | 14 | |
| Svanavatn | city | Iceland | 63.62 | -20.12 | 42 | 0 | |
| Svínhagi | city | Iceland | 63.97 | -20.05 | 321 | 143 | |
| Sydhri-Raudhalaekur | city | Iceland | 63.85 | -20.48 | 78 | 66 | |
| Sydhrihamrar | city | Iceland | 63.88 | -20.63 | 39 | 0 | |
| Sydhstamork | city | Iceland | 63.65 | -19.95 | 291 | 45 | |
| Sydra-Holakot | city | Iceland | 63.50 | -19.62 | 0 | 0 | |
| Syðri-Rauðalækur | city | Iceland | 63.85 | -20.48 | 78 | 66 | |
| Syðrihamrar | city | Iceland | 63.88 | -20.63 | 39 | 0 | |
| Syðstamórk | city | Iceland | 63.65 | -19.95 | 291 | 45 | |
| Sámsstaðir | city | Iceland | 63.75 | -20.12 | 538 | 95 |