| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Salto Grande | city | Atlantico Sur | Nicaragua | 12.54 | -84.60 | 357 | 0 |
| Salto Grande | city | Atlantico Sur | Nicaragua | 12.06 | -84.61 | 377 | 2831 |
| San Alonso | city | Atlantico Sur | Nicaragua | 11.99 | -83.73 | 6 | 13782 |
| San Antonio | city | Atlantico Sur | Nicaragua | 12.07 | -83.84 | 42 | 6712 |
| San Antonio | city | Atlantico Sur | Nicaragua | 12.34 | -84.31 | 91 | 0 |
| San Antonio | city | Atlantico Sur | Nicaragua | 11.95 | -83.73 | 3 | 4394 |
| San Blas | city | Atlantico Sur | Nicaragua | 12.21 | -84.03 | 209 | 204 |
| San Blas | city | Atlantico Sur | Nicaragua | 12.41 | -84.26 | 400 | 39 |
| San Dionisio | city | Atlantico Sur | Nicaragua | 12.09 | -84.24 | 91 | 0 |
| San Francisco | city | Atlantico Sur | Nicaragua | 13.08 | -84.29 | 65 | 282 |
| San Isidro | city | Atlantico Sur | Nicaragua | 12.32 | -84.33 | 131 | 0 |
| San Jerónimo | city | Atlantico Sur | Nicaragua | 11.94 | -84.26 | 219 | 0 |
| San Jose | city | Atlantico Sur | Nicaragua | 12.21 | -84.23 | 91 | 52198 |
| San José | city | Atlantico Sur | Nicaragua | 12.99 | -85.09 | 830 | 0 |
| San José de Paiwas | city | Atlantico Sur | Nicaragua | 12.79 | -85.12 | 830 | 2606 |
| San Juan | city | Atlantico Sur | Nicaragua | 12.17 | -84.18 | 78 | 56365 |
| San Martin | city | Atlantico Sur | Nicaragua | 11.11 | -83.95 | 65 | 0 |
| San Nicolás | city | Atlantico Sur | Nicaragua | 12.35 | -84.56 | 830 | 361 |
| Sandy Bay Sirpi | city | Atlantico Sur | Nicaragua | 12.96 | -83.53 | 0 | 357 |
| Santa Ana | city | Atlantico Sur | Nicaragua | 12.10 | -84.21 | 111 | 4312 |
| Santa Julia | city | Atlantico Sur | Nicaragua | 12.39 | -84.82 | 830 | 372 |
| Santa Marta | city | Atlantico Sur | Nicaragua | 12.16 | -83.98 | 59 | 656 |
| Save You All Bank | city | Atlantico Sur | Nicaragua | 12.58 | -83.75 | 13 | 663 |
| Set Net | city | Atlantico Sur | Nicaragua | 12.46 | -83.49 | 3 | 270 |
| Siawas | city | Atlantico Sur | Nicaragua | 13.17 | -84.13 | 49 | 262 |
| Siksikwás | city | Atlantico Sur | Nicaragua | 13.08 | -84.29 | 65 | 282 |
| Silvandera | city | Atlantico Sur | Nicaragua | 12.15 | -84.09 | 137 | 0 |
| Sinkita | city | Atlantico Sur | Nicaragua | 12.95 | -83.54 | 3 | 428 |
| Siquia | city | Atlantico Sur | Nicaragua | 12.74 | -85.01 | 830 | 1633 |
| Sisi | city | Atlantico Sur | Nicaragua | 12.11 | -84.03 | 19 | 120 |
| Sitio Comuneros Los Robles | city | Atlantico Sur | Nicaragua | 11.85 | -83.85 | 59 | 0 |
| Sitio La Trinidad | city | Atlantico Sur | Nicaragua | 11.99 | -83.80 | 88 | 35746 |
| Sitio Los Robles | city | Atlantico Sur | Nicaragua | 11.85 | -83.85 | 59 | 0 |
| Sitio Willing Cay | city | Atlantico Sur | Nicaragua | 11.70 | -83.69 | 6 | 0 |
| Soledad | city | Atlantico Sur | Nicaragua | 12.06 | -84.25 | 104 | 0 |
| South End | city | Atlantico Sur | Nicaragua | 12.17 | -83.04 | 0 | 58 |