| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| McArthur | city | California | United States | 41.05 | -121.40 | 3349 | |
| McArthur | city | California | United States | 41.33 | -120.54 | 4389 | |
| McArthur Mobile Home Park | city | California | United States | 41.05 | -121.40 | 3349 | |
| McAvoy | city | California | United States | 38.04 | -121.96 | 16 | |
| McCampbell | city | California | United States | 33.97 | -118.11 | 131 | |
| McCann | city | California | United States | 40.32 | -123.84 | 200 | |
| McCartney Place | city | California | United States | 40.17 | -122.56 | 1000 | |
| McCauley (historical) | city | California | United States | 38.43 | -122.76 | 101 | |
| McClellan Place | city | California | United States | 40.49 | -123.42 | 2509 | |
| McCloud | city | California | United States | 41.26 | -122.14 | 3349 | |
| McClure Place | city | California | United States | 40.27 | -121.83 | 2509 | |
| McClure Place | city | California | United States | 39.79 | -123.04 | 1886 | |
| McColl | city | California | United States | 40.73 | -122.33 | 997 | |
| McConnel Place | city | California | United States | 38.80 | -120.45 | 4586 | |
| McCulloh | city | California | United States | 38.95 | -120.53 | 5029 | |
| McDonald | city | California | United States | 38.19 | -122.91 | 196 | |
| McFarland | city | California | United States | 35.68 | -119.23 | 347 | |
| McGarva | city | California | United States | 41.29 | -120.56 | 4379 | |
| McGill | city | California | United States | 38.20 | -122.44 | 3 | |
| McHenry | city | California | United States | 37.71 | -121.00 | 68 | |
| McKay | city | California | United States | 38.25 | -120.31 | 4189 | |
| McKay | city | California | United States | 35.78 | -120.73 | 830 | |
| McKenzie Place | city | California | United States | 40.29 | -121.90 | 1797 | |
| McKenzie Spring (historical) | city | California | United States | 36.98 | -119.61 | 984 | |
| McKinleyville | city | California | United States | 40.95 | -124.10 | 177 | |
| McKittrick | city | California | United States | 35.31 | -119.62 | 1062 | |
| McMahons (historical) | city | California | United States | 39.59 | -120.96 | 5029 | |
| McManus | city | California | United States | 38.80 | -120.53 | 4222 | |
| McMullin (historical) | city | California | United States | 36.66 | -119.97 | 200 | |
| McNear | city | California | United States | 38.23 | -122.61 | 196 | |
| McNears Beach | city | California | United States | 37.99 | -122.45 | 0 | |
| McNeil | city | California | United States | 34.17 | -118.35 | 830 | |
| McPherson | city | California | United States | 33.79 | -117.83 | 272 |