| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Bachelor Gulch Village | city | Colorado | United States | 39.62 | -106.54 | 8389 | |
| Badger House Community (historical) | city | Colorado | United States | 37.19 | -108.53 | 6998 | |
| Badito | city | Colorado | United States | 37.73 | -105.01 | 6709 | |
| Bailey | city | Colorado | United States | 39.41 | -105.47 | 7798 | |
| Bakerville | city | Colorado | United States | 39.69 | -105.81 | 10131 | |
| Balarat | city | Colorado | United States | 40.16 | -105.40 | 7814 | |
| Baldwin | city | Colorado | United States | 38.76 | -107.05 | 8743 | |
| Balfour | city | Colorado | United States | 38.91 | -105.72 | 9228 | |
| Balltown | city | Colorado | United States | 39.08 | -106.28 | 9228 | |
| Baltimore (historical) | city | Colorado | United States | 39.90 | -105.57 | 9402 | |
| Balzac | city | Colorado | United States | 40.41 | -103.47 | 4189 | |
| Barela | city | Colorado | United States | 37.12 | -104.26 | 5869 | |
| Bark Ranch | city | Colorado | United States | 40.12 | -105.44 | 8477 | |
| Barnesville | city | Colorado | United States | 40.48 | -104.48 | 5029 | |
| Barr Lake | city | Colorado | United States | 39.94 | -104.78 | 5098 | |
| Bartlett | city | Colorado | United States | 37.43 | -102.14 | 3769 | |
| Basalt | city | Colorado | United States | 39.37 | -107.03 | 6814 | |
| Basin | city | Colorado | United States | 38.07 | -108.54 | 6709 | |
| Battle Creek | city | Colorado | United States | 41.00 | -107.25 | 6814 | |
| Battlement Mesa | city | Colorado | United States | 39.44 | -108.03 | 5869 | |
| Baxter | city | Colorado | United States | 38.28 | -104.49 | 4596 | |
| Baxterville | city | Colorado | United States | 37.67 | -106.66 | 8389 | |
| Bayfield | city | Colorado | United States | 37.23 | -107.60 | 6945 | |
| Bayou Hills | city | Colorado | United States | 39.43 | -104.70 | 6709 | |
| Beacon Hill | city | Colorado | United States | 38.72 | -105.16 | 9399 | |
| Bear River (historical) | city | Colorado | United States | 40.48 | -107.12 | 6709 | |
| Bear Valley | city | Colorado | United States | 39.66 | -105.06 | 5396 | |
| Bear Valley Heights | city | Colorado | United States | 39.65 | -105.06 | 5400 | |
| Beards Corner | city | Colorado | United States | 38.07 | -108.61 | 6709 | |
| Beartown (historical) | city | Colorado | United States | 37.72 | -107.50 | 11748 | |
| Beaver Creek Village | city | Colorado | United States | 39.60 | -106.52 | 8389 | |
| Beaver Point | city | Colorado | United States | 40.36 | -105.54 | 7706 | |
| Beck Sand Draw Crossing | city | Colorado | United States | 39.03 | -104.05 | 6197 | |
| Bedrock | city | Colorado | United States | 38.31 | -108.89 | 5029 | |
| Beecher Island | city | Colorado | United States | 39.87 | -102.18 | 3500 | |
| Belden | city | Colorado | United States | 39.53 | -106.39 | 10068 | |
| Belleview | city | Colorado | United States | 38.57 | -106.04 | 7549 | |
| Bellevue Acres | city | Colorado | United States | 39.62 | -105.14 | 5869 | |
| Bellvue | city | Colorado | United States | 40.63 | -105.17 | 5200 | |
| Bennett | city | Colorado | United States | 39.76 | -104.43 | 5869 | |
| Benton | city | Colorado | United States | 37.91 | -103.66 | 4294 | |
| Bergen Park | city | Colorado | United States | 39.69 | -105.36 | 7959 | |
| Berkeley Gardens | city | Colorado | United States | 39.79 | -105.03 | 5324 | |
| Berkley | city | Colorado | United States | 39.80 | -105.03 | 5209 | |
| Berthoud | city | Colorado | United States | 40.31 | -105.08 | 5029 | |
| Berthoud Falls | city | Colorado | United States | 39.77 | -105.81 | 11118 | |
| Berts Corner | city | Colorado | United States | 40.31 | -105.10 | 5029 | |
| Beshoar | city | Colorado | United States | 37.22 | -104.41 | 5971 | |
| Beta | city | Colorado | United States | 38.09 | -102.69 | 3661 | |
| Beta | city | Colorado | United States | 40.47 | -103.38 | 4189 | |
| Bethune | city | Colorado | United States | 39.30 | -102.42 | 4248 | |
| Beulah | city | Colorado | United States | 38.08 | -104.99 | 6279 | |
| Beulah Valley | city | Colorado | United States | 38.07 | -104.97 | 6197 | |
| Beverly Hills | city | Colorado | United States | 39.47 | -104.88 | 6709 | |
| Beverly Hills | city | Colorado | United States | 39.47 | -104.88 | 6709 | |
| Big Bend | city | Colorado | United States | 38.20 | -102.75 | 4189 | |
| Big Elk Meadows | city | Colorado | United States | 40.26 | -105.43 | 7949 | |
| Bighorn | city | Colorado | United States | 39.64 | -106.30 | 9228 | |
| Biglow | city | Colorado | United States | 39.34 | -106.67 | 8448 | |
| Bijou | city | Colorado | United States | 39.42 | -104.20 | 6102 | |
| Birdseye | city | Colorado | United States | 39.31 | -106.23 | 10908 | |
| Black Eagle Mill | city | Colorado | United States | 39.73 | -105.55 | 8389 | |
| Black Forest | city | Colorado | United States | 39.01 | -104.70 | 7549 | |
| Black Hawk | city | Colorado | United States | 39.80 | -105.49 | 8389 | |
| Black Hollow Junction | city | Colorado | United States | 40.60 | -105.03 | 5029 | |
| Blakeland | city | Colorado | United States | 39.56 | -105.04 | 5869 | |
| Blanca | city | Colorado | United States | 37.44 | -105.52 | 7785 | |
| Blende | city | Colorado | United States | 38.25 | -104.57 | 5029 | |
| Bloom | city | Colorado | United States | 37.69 | -103.96 | 5029 | |
| Blue Mountain | city | Colorado | United States | 40.25 | -108.86 | 5997 | |
| Blue River | city | Colorado | United States | 39.43 | -106.04 | 10177 | |
| Blue Valley | city | Colorado | United States | 39.70 | -105.49 | 9576 | |
| Bockman Lumber Camp | city | Colorado | United States | 40.56 | -105.97 | 9265 | |
| Boggsville | city | Colorado | United States | 38.04 | -103.21 | 4189 | |
| Bonanza | city | Colorado | United States | 38.29 | -106.14 | 9402 | |
| Bonanza Mountain Estates | city | Colorado | United States | 39.98 | -105.48 | 8389 | |
| Boncarbo | city | Colorado | United States | 37.22 | -104.69 | 7043 | |
| Bond | city | Colorado | United States | 39.87 | -106.69 | 6998 | |
| Bondad | city | Colorado | United States | 37.05 | -107.88 | 5997 | |
| Bonita | city | Colorado | United States | 38.23 | -106.22 | 9491 | |
| Boone | city | Colorado | United States | 38.25 | -104.26 | 4566 | |
| Bordenville | city | Colorado | United States | 39.28 | -105.68 | 9228 | |
| Boston Heights | city | Colorado | United States | 39.74 | -104.85 | 5380 | |
| Boulder | city | Colorado | United States | 40.01 | -105.27 | 5400 | |
| Boulder Junction | city | Colorado | United States | 40.02 | -105.21 | 5269 | |
| Bountiful | city | Colorado | United States | 37.23 | -105.98 | 7624 | |
| Bovina | city | Colorado | United States | 39.28 | -103.39 | 5396 | |
| Bow Mar | city | Colorado | United States | 39.63 | -105.05 | 5406 | |
| Bowie | city | Colorado | United States | 38.92 | -107.54 | 5869 | |
| Box Prairie | city | Colorado | United States | 40.58 | -105.47 | 8389 | |
| Boyero | city | Colorado | United States | 38.94 | -103.28 | 5029 | |
| Bracewell | city | Colorado | United States | 40.46 | -104.82 | 5029 | |
| Bradford | city | Colorado | United States | 37.88 | -105.33 | 8389 | |
| Bragdon | city | Colorado | United States | 38.40 | -104.61 | 5029 | |
| Brandon | city | Colorado | United States | 38.45 | -102.44 | 4189 | |
| Brandywine | city | Colorado | United States | 39.92 | -105.04 | 5226 | |
| Branson | city | Colorado | United States | 37.02 | -103.88 | 6269 | |
| Breckenridge | city | Colorado | United States | 39.48 | -106.04 | 10068 | |
| Breen | city | Colorado | United States | 37.19 | -108.08 | 7549 | |
| Bridgeport | city | Colorado | United States | 38.84 | -108.38 | 5029 | |
| Bridges Switch | city | Colorado | United States | 39.10 | -108.40 | 5029 | |
| Bridle Dale | city | Colorado | United States | 39.84 | -105.12 | 5869 | |
| Briggsdale | city | Colorado | United States | 40.63 | -104.33 | 5029 | |
| Brighton | city | Colorado | United States | 39.99 | -104.82 | 5029 | |
| Brimstone Corner | city | Colorado | United States | 38.94 | -107.98 | 6709 | |
| Bristol | city | Colorado | United States | 38.12 | -102.31 | 3546 | |
| Broadlands | city | Colorado | United States | 39.95 | -105.04 | 5291 | |
| Broadlands West | city | Colorado | United States | 39.95 | -105.05 | 5311 | |
| Broadmoor | city | Colorado | United States | 38.80 | -104.84 | 6118 | |
| Broadway Estates | city | Colorado | United States | 39.59 | -104.98 | 5869 | |
| Broken Arrow Acres | city | Colorado | United States | 39.50 | -105.33 | 8467 | |
| Bronquist | city | Colorado | United States | 38.20 | -104.89 | 5449 | |
| Brook Forest | city | Colorado | United States | 39.58 | -105.38 | 8389 | |
| Brookfield (historical) | city | Colorado | United States | 37.59 | -102.84 | 4484 | |
| Brookside | city | Colorado | United States | 38.42 | -105.19 | 5387 | |
| Brookvale | city | Colorado | United States | 39.69 | -104.80 | 5869 | |
| Brookvale | city | Colorado | United States | 39.63 | -105.42 | 7598 | |
| Broomfield | city | Colorado | United States | 39.92 | -105.09 | 5383 | |
| Broomfield Heights | city | Colorado | United States | 39.94 | -105.08 | 5396 | |
| Broughton | city | Colorado | United States | 38.81 | -108.33 | 5029 | |
| Brownlee | city | Colorado | United States | 40.78 | -106.29 | 8389 | |
| Browns Canon | city | Colorado | United States | 38.61 | -106.06 | 7549 | |
| Browns Corner | city | Colorado | United States | 40.41 | -105.06 | 5029 | |
| Bruce | city | Colorado | United States | 40.50 | -104.86 | 5029 | |
| Brumley (historical) | city | Colorado | United States | 39.09 | -106.54 | 10925 | |
| Brush | city | Colorado | United States | 40.26 | -103.62 | 4261 | |
| Buchanan | city | Colorado | United States | 40.83 | -103.17 | 4189 | |
| Buckeye | city | Colorado | United States | 40.83 | -105.09 | 5869 | |
| Buckeye Crossroads | city | Colorado | United States | 37.56 | -102.13 | 4189 | |
| Buckingham | city | Colorado | United States | 40.62 | -103.98 | 5029 | |
| Buckingham | city | Colorado | United States | 40.59 | -105.07 | 5029 | |
| Buckskin Joe | city | Colorado | United States | 38.48 | -105.33 | 6197 | |
| Buda | city | Colorado | United States | 40.33 | -104.98 | 5029 | |
| Buena Vista | city | Colorado | United States | 38.84 | -106.13 | 7906 | |
| Buffalo Creek | city | Colorado | United States | 39.39 | -105.27 | 7011 | |
| Buford | city | Colorado | United States | 39.99 | -107.62 | 7549 | |
| Bulger | city | Colorado | United States | 40.79 | -104.98 | 5869 | |
| Bunyan | city | Colorado | United States | 40.29 | -104.92 | 5029 | |
| Burdett | city | Colorado | United States | 40.37 | -102.95 | 4248 | |
| Burlington | city | Colorado | United States | 39.31 | -102.27 | 4189 | |
| Burning Tree Ranch | city | Colorado | United States | 39.40 | -104.73 | 6709 | |
| Burns | city | Colorado | United States | 39.87 | -106.89 | 6709 | |
| Burnt Mill | city | Colorado | United States | 38.05 | -104.80 | 5396 | |
| Buttes | city | Colorado | United States | 38.59 | -104.67 | 5347 | |
| Byers | city | Colorado | United States | 39.71 | -104.23 | 5216 |