| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Siawas | city | Atlantico Sur | Nicaragua | 13.17 | -84.13 | 49 | 262 |
| Sicantal | city | Chinandega | Nicaragua | 12.72 | -87.31 | 104 | 5646 |
| Siempreviva | city | Atlantico Norte | Nicaragua | 13.87 | -84.52 | 830 | 391 |
| Sierras del Oregano | city | Matagalpa | Nicaragua | 12.66 | -86.17 | 2621 | 2820 |
| Sih | city | Atlantico Norte | Nicaragua | 14.95 | -83.53 | 6 | 496 |
| Sika Yari | city | Atlantico Norte | Nicaragua | 14.74 | -84.99 | 347 | 339 |
| Siksayali | city | Atlantico Norte | Nicaragua | 14.74 | -84.99 | 347 | 339 |
| Siksayari | city | Atlantico Norte | Nicaragua | 14.74 | -84.99 | 347 | 339 |
| Siksikwás | city | Atlantico Sur | Nicaragua | 13.08 | -84.29 | 65 | 282 |
| Silencio | city | Nueva Segovia | Nicaragua | 13.88 | -86.02 | 2598 | 9239 |
| Silvandera | city | Atlantico Sur | Nicaragua | 12.15 | -84.09 | 137 | 0 |
| Sinkita | city | Atlantico Sur | Nicaragua | 12.95 | -83.54 | 3 | 428 |
| Sinsin | city | Atlantico Norte | Nicaragua | 14.27 | -83.55 | 16 | 0 |
| Siquia | city | Atlantico Sur | Nicaragua | 12.74 | -85.01 | 830 | 1633 |
| Sisi | city | Atlantico Sur | Nicaragua | 12.11 | -84.03 | 19 | 120 |
| Sisin | city | Atlantico Norte | Nicaragua | 14.27 | -83.55 | 16 | 0 |
| Sisinata | city | Atlantico Norte | Nicaragua | 14.29 | -83.49 | 62 | 0 |
| Sitalapa | city | Managua | Nicaragua | 11.92 | -86.47 | 830 | 9508 |
| Sitio Alto La Lora | city | Chinandega | Nicaragua | 13.02 | -87.53 | 114 | 3098 |
| Sitio Comuneros Los Robles | city | Atlantico Sur | Nicaragua | 11.85 | -83.85 | 59 | 0 |
| Sitio El Bálsamo | city | Matagalpa | Nicaragua | 12.72 | -85.62 | 1899 | 4321 |
| Sitio El Carmen | city | Chinandega | Nicaragua | 13.02 | -87.61 | 305 | 3553 |
| Sitio Itastalia | city | Managua | Nicaragua | 11.95 | -86.55 | 249 | 6248 |
| Sitio La Trinidad | city | Atlantico Sur | Nicaragua | 11.99 | -83.80 | 88 | 35746 |
| Sitio Los Elequemes | city | Rio San Juan | Nicaragua | 11.66 | -84.97 | 249 | 1490 |
| Sitio Los Robles | city | Atlantico Sur | Nicaragua | 11.85 | -83.85 | 59 | 0 |
| Sitio Maizama | city | Matagalpa | Nicaragua | 12.82 | -85.58 | 980 | 4308 |
| Sitio Santa Isabel | city | Esteli | Nicaragua | 13.21 | -86.37 | 2765 | 6258 |
| Sitio Viejo | city | Boaco | Nicaragua | 12.48 | -85.98 | 1003 | 3447 |
| Sitio Willing Cay | city | Atlantico Sur | Nicaragua | 11.70 | -83.69 | 6 | 0 |
| Sitios El Pedregal | city | Leon | Nicaragua | 12.78 | -86.52 | 830 | 5086 |
| Sitios La Calera | city | Leon | Nicaragua | 12.71 | -86.65 | 314 | 5349 |
| Sitios Las Grietas | city | Chinandega | Nicaragua | 12.74 | -86.92 | 830 | 10872 |
| Sitios Loma Alegre | city | Managua | Nicaragua | 11.78 | -86.47 | 124 | 8729 |
| Sitios Los Briceños | city | Leon | Nicaragua | 12.82 | -86.78 | 131 | 3874 |
| Sitios de Fátima | city | Leon | Nicaragua | 12.70 | -86.77 | 190 | 4122 |
| Sitios de Hato Grande | city | Chinandega | Nicaragua | 12.82 | -86.91 | 108 | 5344 |
| Sitios de Huiste | city | Carazo | Nicaragua | 11.73 | -86.42 | 164 | 7101 |
| Sitios de San Pedro | city | Chinandega | Nicaragua | 12.81 | -86.68 | 242 | 4366 |
| Siuna | city | Atlantico Norte | Nicaragua | 13.73 | -84.78 | 830 | 59864 |
| Siunawas | city | Atlantico Norte | Nicaragua | 13.72 | -84.75 | 830 | 59864 |