Colorado Cities
- Bachelor, CO
- Badito, CO
- Bailey, CO
- Bakerville, CO
- Balarat, CO
- Baldwin, CO
- Balfour, CO
- Balltown, CO
- Balzac, CO
- Barela, CO
- Bark Ranch, CO
- Barnesville, CO
- Barr Lake, CO
- Bartlett, CO
- Basalt, CO
- Basin, CO
- Battle Creek, CO
- Battlement Mesa, CO
- Baxter, CO
- Baxterville, CO
- Bayfield, CO
- Beacon Hill, CO
- Beaver Point, CO
- Bedrock, CO
- Beecher Island, CO
- Belden, CO
- Belleview, CO
- Bellvue, CO
- Bennett, CO
- Benton, CO
- Bergen Park, CO
- Berkley, CO
- Berthoud, CO
- Berthoud Falls, CO
- Beshoar, CO
- Beta, CO
- Bethune, CO
- Beulah, CO
- Beulah Valley, CO
- Beverly Grove, CO
- Beverly Hills, CO
- Big Bend, CO
- Big Elk Meadows, CO
- Bighorn, CO
- Bijou, CO
- Birdseye, CO
- Bisonte, CO
- Black Eagle Mill, CO
- Black Forest, CO
- Black Hawk, CO
- Blakeland, CO
- Blanca, CO
- Blende, CO
- Bloom, CO
- Blue Mountain, CO
- Blue River, CO
- Blue Sky, CO
- Blue Valley, CO
- Bockman Lumber Camp, CO
- Boettcher, CO
- Boggsville, CO
- Bonanza, CO
- Bonanza Mountain Estates, CO
- Boncarbo, CO
- Bond, CO
- Bondad, CO
- Bonita, CO
- Boone, CO
- Bordenville, CO
- Boulder, CO
- Bountiful, CO
- Bovina, CO
- Bow Mar, CO
- Bowie, CO
- Box Prairie, CO
- Boyero, CO
- Bracewell, CO
- Bradford, CO
- Bragdon, CO
- Brandon, CO
- Branson, CO
- Breckenridge, CO
- Breen, CO
- Brick Center, CO
- Bridgeport, CO
- Bridges Switch, CO
- Briggsdale, CO
- Brighton, CO
- Bristol, CO
- Broadmoor, CO
- Broken Arrow Acres, CO
- Bronquist, CO
- Brook Forest, CO
- Brookside, CO
- Brookvale, CO
- Broomfield, CO
- Broughton, CO
- Brown, CO
- Brownlee, CO
- Browns Canon, CO
- Bruce, CO
- Brush, CO
- Buchanan, CO
- Buckeye, CO
- Buckeye Crossroads, CO
- Buckingham, CO
- Buckskin Joe, CO
- Buda, CO
- Buena Vista, CO
- Buffalo Creek, CO
- Buford, CO
- Bulger, CO
- Bunyan, CO
- Burdett, CO
- Burlington, CO
- Burning Tree Ranch, CO
- Burns, CO
- Burnt Mill, CO
- Buttes, CO
- Byers, CO
