| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Balde del Rosario | city | San Juan | Argentina | -30.32 | -67.70 | 4189 | 544 |
| Bano Centenario | city | San Juan | Argentina | -30.32 | -69.28 | 6709 | 218 |
| Barrancas | city | San Juan | Argentina | -29.43 | -69.58 | 14268 | 0 |
| Barreal | city | San Juan | Argentina | -31.62 | -69.47 | 5269 | 3637 |
| Barreal de los Huevos | city | San Juan | Argentina | -31.75 | -67.08 | 1669 | 0 |
| Barriales | city | San Juan | Argentina | -31.62 | -69.47 | 5269 | 3637 |
| Barrialito | city | San Juan | Argentina | -31.37 | -69.53 | 5029 | 0 |
| Barrio Rivadavia | city | San Juan | Argentina | -31.55 | -68.55 | 2509 | 179605 |
| Bañitos | city | San Juan | Argentina | -29.30 | -69.55 | 13011 | 0 |
| Bañitos de Chollay | city | San Juan | Argentina | -29.20 | -69.67 | 11748 | 0 |
| Baño Pismanta | city | San Juan | Argentina | -30.28 | -69.23 | 5938 | 1133 |
| Baños de los Despoblados | city | San Juan | Argentina | -29.45 | -69.78 | 15203 | 0 |
| Bella Vista | city | San Juan | Argentina | -30.43 | -69.23 | 6709 | 762 |
| Bella Vista | city | San Juan | Argentina | -31.16 | -69.46 | 5029 | 0 |
| Bermejo | city | San Juan | Argentina | -31.59 | -67.66 | 1889 | 2656 |
| Berros | city | San Juan | Argentina | -31.95 | -68.65 | 2559 | 3437 |
| Boca de la Quebrada | city | San Juan | Argentina | -30.15 | -68.66 | 3589 | 4445 |
| Buena Esperanza | city | San Juan | Argentina | -30.07 | -69.15 | 5449 | 582 |