| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Buchanan | city | California | United States | 37.91 | -120.19 | 3349 | |
| Buchli | city | California | United States | 38.21 | -122.33 | 3 | |
| Buck Meadows | city | California | United States | 37.81 | -120.06 | 3349 | |
| Buckeye | city | California | United States | 39.80 | -121.30 | 5029 | |
| Buckeye | city | California | United States | 38.92 | -120.80 | 2877 | |
| Buckeye | city | California | United States | 40.64 | -122.40 | 830 | |
| Buckeye Flat (historical) | city | California | United States | 38.67 | -120.91 | 1669 | |
| Buckhorn | city | California | United States | 34.40 | -118.82 | 830 | |
| Buckhorn | city | California | United States | 38.45 | -120.53 | 3349 | |
| Buckhorn Estates | city | California | United States | 37.95 | -120.27 | 2778 | |
| Buckingham Park | city | California | United States | 39.02 | -122.76 | 1669 | |
| Bucks Lake | city | California | United States | 39.87 | -121.18 | 5869 | |
| Bucks Lodge | city | California | United States | 39.88 | -121.17 | 5216 | |
| Bucksport | city | California | United States | 40.78 | -124.19 | 49 | |
| Bucktail | city | California | United States | 40.70 | -122.85 | 2030 | |
| Bucktown | city | California | United States | 38.39 | -122.02 | 272 | |
| Buellton | city | California | United States | 34.61 | -120.19 | 396 | |
| Buena | city | California | United States | 33.17 | -117.21 | 830 | |
| Buena Park | city | California | United States | 33.87 | -118.00 | 65 | |
| Buena Vista | city | California | United States | 38.29 | -120.91 | 298 | |
| Buena Vista | city | California | United States | 37.71 | -119.79 | 5124 | |
| Buena Vista | city | California | United States | 40.06 | -121.87 | 1699 | |
| Buena Vista | city | California | United States | 38.29 | -122.43 | 95 | |
| Buena Vista | city | California | United States | 37.32 | -121.92 | 114 | |
| Buena Vista (historical) | city | California | United States | 39.19 | -120.97 | 2611 | |
| Buena Vista Mobile Home Park | city | California | United States | 35.14 | -119.47 | 1046 | |
| Buffalo Hill | city | California | United States | 38.91 | -120.85 | 2598 | |
| Buhach | city | California | United States | 37.34 | -120.58 | 154 | |
| Bull Creek | city | California | United States | 40.34 | -124.03 | 830 | |
| Bullard | city | California | United States | 38.61 | -120.96 | 1197 | |
| Bullards Bar (historical) | city | California | United States | 39.42 | -121.14 | 1669 | |
| Bully Hill | city | California | United States | 40.80 | -122.19 | 1154 | |
| Bumblebee | city | California | United States | 38.23 | -120.00 | 5869 | |
| Bummerville | city | California | United States | 38.40 | -120.51 | 2851 | |
| Bunker | city | California | United States | 38.35 | -121.76 | 9 | |
| Bunker Hill | city | California | United States | 38.43 | -120.83 | 997 | |
| Bunker Hill | city | California | United States | 34.08 | -117.31 | 997 | |
| Bunker Hill Towers | city | California | United States | 34.06 | -118.25 | 377 | |
| Buntingville | city | California | United States | 40.29 | -120.48 | 4189 | |
| Burbank | city | California | United States | 37.32 | -121.93 | 121 | |
| Burbank | city | California | United States | 34.18 | -118.31 | 830 | |
| Burbank Junction | city | California | United States | 34.19 | -118.32 | 830 | |
| Burbeck | city | California | United States | 39.43 | -123.44 | 830 | |
| Burchell (historical) | city | California | United States | 37.26 | -120.29 | 278 | |
| Burdell | city | California | United States | 38.16 | -122.57 | 3 | |
| Burling (historical) | city | California | United States | 36.18 | -119.34 | 249 | |
| Burlingame | city | California | United States | 37.58 | -122.37 | 98 | |
| Burlington | city | California | United States | 40.31 | -123.91 | 200 | |
| Burness | city | California | United States | 36.76 | -119.66 | 298 | |
| Burney | city | California | United States | 40.88 | -121.66 | 3349 | |
| Burnham | city | California | United States | 37.89 | -121.15 | 49 | |
| Burnt Ranch | city | California | United States | 40.81 | -123.47 | 1669 | |
| Burr | city | California | United States | 36.25 | -119.12 | 364 | |
| Burrel | city | California | United States | 36.49 | -119.99 | 200 | |
| Burson | city | California | United States | 38.18 | -120.89 | 400 | |
| Burton Mill | city | California | United States | 35.50 | -118.41 | 7549 | |
| Bush | city | California | United States | 34.15 | -115.70 | 1187 | |
| Butano Park | city | California | United States | 37.23 | -122.33 | 830 | |
| Butler | city | California | United States | 34.13 | -117.97 | 830 | |
| Butler (historical) | city | California | United States | 36.72 | -119.68 | 298 | |
| Butlers (historical) | city | California | United States | 33.00 | -115.41 | -1689 | |
| Butte City | city | California | United States | 39.46 | -121.99 | 82 | |
| Butte House (historical) | city | California | United States | 39.17 | -121.73 | 45 | |
| Butte Meadows | city | California | United States | 40.08 | -121.55 | 4396 | |
| Butte Street Junction | city | California | United States | 34.02 | -118.23 | 196 | |
| Butterfield Lake Estates | city | California | United States | 33.48 | -116.96 | 1669 | |
| Buttonwillow | city | California | United States | 35.40 | -119.47 | 295 |