Towns
| State | City/Town | Town Title |
|---|---|---|
| Colorado | Bailey | Bailey, CO |
| Colorado | Basalt | Basalt, CO |
| Colorado | Battlement Mesa | Battlement Mesa, CO |
| Colorado | Bayfield | Bayfield, CO |
| Colorado | Bedrock | Bedrock, CO |
| Colorado | Bellvue | Bellvue, CO |
| Colorado | Bennett | Bennett, CO |
| Colorado | Berthoud | Berthoud, CO |
| Colorado | Bethune | Bethune, CO |
| Colorado | Beulah | Beulah, CO |
| Colorado | Black Hawk | Black Hawk, CO |
| Colorado | Blanca | Blanca, CO |
| Colorado | Blank | Blank, CO |
| Colorado | Boncarbo | Boncarbo, CO |
| Colorado | Bond | Bond, CO |
| Colorado | Boone | Boone, CO |
| Colorado | Boulder | Boulder, CO |
| Colorado | Branson | Branson, CO |
| Colorado | Breckenridge | Breckenridge, CO |
| Colorado | Briggsdale | Briggsdale, CO |
| Colorado | Brighton | Brighton, CO |
| Colorado | Broomfield | Broomfield, CO |
| Colorado | Brush | Brush, CO |
| Colorado | Buena Vista | Buena Vista, CO |
| Colorado | Buffalo Creek | Buffalo Creek, CO |