| Town Name | Type | Region | Province / State | County | Municipality | Population | Latitude | Longitude | |
|---|---|---|---|---|---|---|---|---|---|
| Balanegra | village | 2843 | 36.749157 | -2.910504 | Map | ||||
| Balazote | town | 2448 | 38.885040 | -2.152517 | Map | ||||
| Balerma | village | 4522 | 36.729473 | -2.887238 | Map | ||||
| Balmaseda | village | 7312 | 43.194111 | -3.194671 | Map | ||||
| Balsareny | town | 3066 | 41.863186 | 1.875600 | Map | ||||
| Baltanás | village | 1273 | 41.936653 | -4.246769 | Map | ||||
| Baños de la Encina | village | 2607 | 38.173611 | -3.773884 | Map | ||||
| Baños de Río Tobía | village | 1727 | 42.334827 | -2.761231 | Map | ||||
| Banyeres de Mariola | village | 7229 | 38.716011 | -0.656891 | Map | ||||
| Banyeres del Penedès | village | 1671 | 41.279152 | 1.581332 | Map | ||||
| Banyoles | town | 18576 | 42.117962 | 2.765208 | Map | ||||
| Barakaldo | city | 98917 | 43.297157 | -2.986040 | Map | ||||
| Barañáin | town | 21705 | 42.804832 | -1.681020 | Map | ||||
| Barbastro | town | 17004 | 42.035290 | 0.127388 | Map | ||||
| Barbate | town | 19996 | 36.189968 | -5.920097 | Map | ||||
| Barberà del Vallès | town | 32033 | 41.517254 | 2.126594 | Map | ||||
| Barcarrota | village | Extremadura | Badajoz | 3709 | 38.515499 | -6.848602 | Map | ||
| Barcelona | city | 1615908 | 41.382561 | 2.177135 | Map | ||||
| Bargas | town | Castilla-La Mancha | Toledo | 7176 | 39.939320 | -4.020153 | Map | ||
| Barrax | town | 2053 | 39.046036 | -2.200413 | Map | ||||
| Barrio de San Antonio | village | 1065 | 37.163147 | -4.135327 | Map | ||||
| Barruelo de Santullán | village | 1172 | 42.908775 | -4.288037 | Map | ||||
| Barx | village | 1445 | 39.013371 | -0.300133 | Map | ||||
| Barxeta | village | 1662 | 39.022522 | -0.416544 | Map | ||||
| Basauri | town | 35931 | 43.235363 | -2.892197 | Map |