| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Baggle | city | Chubut | Argentina | -43.17 | -71.67 | 830 | 12 |
| Bahía Bustamante | city | Chubut | Argentina | -45.13 | -66.54 | 39 | 424 |
| Bajada del Diablo | city | Chubut | Argentina | -44.75 | -68.95 | 1066 | 0 |
| Bajo del Piche | city | Chubut | Argentina | -42.49 | -64.56 | 3 | 0 |
| Balneario Unión | city | Chubut | Argentina | -43.31 | -65.04 | 0 | 10776 |
| Barranca | city | Chubut | Argentina | -43.52 | -71.25 | 2936 | 0 |
| Barranca Mahuida | city | Chubut | Argentina | -43.08 | -69.07 | 2778 | 0 |
| Barrancas Amarillas | city | Chubut | Argentina | -43.92 | -67.92 | 2053 | 0 |
| Barrio Laprida | city | Chubut | Argentina | -45.82 | -67.52 | 337 | 10515 |
| Barrio Laprida y Manantial Rosales | city | Chubut | Argentina | -45.82 | -67.52 | 337 | 10515 |
| Barrio Saavedra | city | Chubut | Argentina | -45.84 | -67.53 | 830 | 10512 |
| Boca de la Zanja | city | Chubut | Argentina | -43.35 | -65.93 | 259 | 0 |
| Brazo Norte | city | Chubut | Argentina | -45.04 | -70.82 | 2509 | 1672 |
| Buen Pasto | city | Chubut | Argentina | -45.08 | -69.46 | 3349 | 642 |
| Buenas Aires Chico | city | Chubut | Argentina | -42.07 | -71.22 | 2509 | 2609 |
| Buenos Aires Chico | city | Chubut | Argentina | -42.07 | -71.22 | 2509 | 2609 |
| Bustamante | city | Chubut | Argentina | -45.13 | -66.54 | 39 | 424 |
| Bustamente | city | Chubut | Argentina | -45.13 | -66.54 | 39 | 424 |