| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Mabel (historical) | city | California | United States | 40.81 | -122.38 | 1040 | |
| Mabie | city | California | United States | 39.79 | -120.52 | 5029 | |
| Macdoel | city | California | United States | 41.83 | -122.01 | 4255 | |
| Mace (historical) | city | California | United States | 34.92 | -117.11 | 2509 | |
| Machado (historical) | city | California | United States | 33.98 | -118.45 | 0 | |
| Mackenson | city | California | United States | 38.12 | -121.68 | -1689 | |
| Macomber Palms | city | California | United States | 33.80 | -116.26 | 830 | |
| Mad River | city | California | United States | 40.45 | -123.51 | 2611 | |
| Madeline | city | California | United States | 41.05 | -120.48 | 5344 | |
| Madera | city | California | United States | 36.96 | -120.06 | 269 | |
| Madera Acres | city | California | United States | 37.02 | -120.07 | 282 | |
| Madera Country Club Estates | city | California | United States | 37.03 | -120.06 | 295 | |
| Madera Highlands | city | California | United States | 37.01 | -120.08 | 249 | |
| Madera Ranchos | city | California | United States | 36.93 | -119.88 | 298 | |
| Madison | city | California | United States | 38.68 | -121.97 | 144 | |
| Madrid Manor Mobile Home Park | city | California | United States | 33.15 | -117.13 | 830 | |
| Madrone | city | California | United States | 37.15 | -121.67 | 380 | |
| Madrone (historical) | city | California | United States | 38.34 | -122.51 | 167 | |
| Madrone Soda Springs (historical) | city | California | United States | 37.17 | -121.51 | 1669 | |
| Magalia | city | California | United States | 39.81 | -121.58 | 1669 | |
| Magnet (historical) | city | California | United States | 37.15 | -119.66 | 1669 | |
| Magnetic Spring (historical) | city | California | United States | 37.07 | -121.99 | 830 | |
| Magnolia | city | California | United States | 36.02 | -119.00 | 830 | |
| Magnolia Avenue | city | California | United States | 33.96 | -117.42 | 830 | |
| Magnolia Gardens Mobile Home Park | city | California | United States | 36.30 | -119.78 | 196 | |
| Magnolia Park | city | California | United States | 34.17 | -118.35 | 830 | |
| Magra | city | California | United States | 39.15 | -120.90 | 2824 | |
| Magunden | city | California | United States | 35.36 | -118.93 | 830 | |
| Mahoney Trailer Park | city | California | United States | 33.79 | -116.49 | 380 | |
| Mahou Riviera | city | California | United States | 34.01 | -118.81 | 196 | |
| Mailliard (historical) | city | California | United States | 38.01 | -122.63 | 830 | |
| Maine Prairie | city | California | United States | 38.31 | -121.76 | 3 | |
| Majors | city | California | United States | 36.98 | -122.14 | 141 | |
| Makahmo (historical) | city | California | United States | 38.82 | -123.01 | 364 | |
| Malaga | city | California | United States | 36.68 | -119.73 | 259 | |
| Malakoff (historical) | city | California | United States | 39.37 | -120.92 | 3349 | |
| Malby Crossing | city | California | United States | 38.61 | -121.07 | 830 | |
| Malcolm X Square | city | California | United States | 37.78 | -122.43 | 196 | |
| Malibu | city | California | United States | 34.01 | -118.81 | 42 | |
| Malibu Beach | city | California | United States | 34.03 | -118.69 | 0 | |
| Malibu Bowl | city | California | United States | 34.06 | -118.74 | 997 | |
| Malibu Hills | city | California | United States | 34.05 | -118.74 | 830 | |
| Malibu Junction | city | California | United States | 34.14 | -118.76 | 987 | |
| Malibu Mar Vista (historical) | city | California | United States | 34.06 | -118.77 | 1669 | |
| Malibu Vista | city | California | United States | 34.05 | -118.77 | 908 | |
| Malibu West | city | California | United States | 34.04 | -118.84 | 68 | |
| Mallard (historical) | city | California | United States | 37.55 | -121.96 | 59 | |
| Maltby | city | California | United States | 38.01 | -122.07 | 13 | |
| Maltha | city | California | United States | 35.42 | -119.00 | 830 | |
| Malton (historical) | city | California | United States | 39.80 | -122.18 | 252 | |
| Mammoth | city | California | United States | 41.73 | -121.35 | 4199 | |
| Mammoth Lakes | city | California | United States | 37.65 | -118.97 | 7962 | |
| Manchester | city | California | United States | 38.97 | -123.69 | 108 | |
| Manhattan Beach | city | California | United States | 33.88 | -118.41 | 45 | |
| Manila | city | California | United States | 40.85 | -124.16 | 3 | |
| Manix | city | California | United States | 34.98 | -116.59 | 1768 | |
| Mankas Corner | city | California | United States | 38.29 | -122.11 | 131 | |
| Manlove | city | California | United States | 38.55 | -121.37 | 45 | |
| Manor | city | California | United States | 37.99 | -122.59 | 196 | |
| Manteca | city | California | United States | 37.80 | -121.22 | 32 | |
| Manteca Junction | city | California | United States | 37.86 | -121.23 | 29 | |
| Manton | city | California | United States | 40.44 | -121.87 | 2509 | |
| Manuel Mill | city | California | United States | 38.26 | -120.36 | 4189 | |
| Manzana | city | California | United States | 38.44 | -122.87 | 98 | |
| Manzanar | city | California | United States | 36.74 | -118.08 | 4189 | |
| Manzanita | city | California | United States | 32.67 | -116.29 | 3605 | |
| Manzanita | city | California | United States | 37.88 | -122.52 | 6 | |
| Manzanita Acres | city | California | United States | 38.74 | -121.05 | 830 | |
| Manzanita Lake | city | California | United States | 40.54 | -121.56 | 6194 | |
| Maple Creek | city | California | United States | 40.76 | -123.87 | 830 | |
| Maple Grove | city | California | United States | 40.47 | -123.83 | 1040 | |
| Mar Vista | city | California | United States | 34.00 | -118.43 | 68 | |
| Mar Vista Houses | city | California | United States | 34.00 | -118.44 | 39 | |
| Maravilla | city | California | United States | 34.04 | -118.16 | 278 | |
| Maravilla Housing Project | city | California | United States | 34.04 | -118.16 | 328 | |
| Marble Mountain | city | California | United States | 38.65 | -121.03 | 1125 | |
| Marble Place | city | California | United States | 39.46 | -123.57 | 1108 | |
| Marcel | city | California | United States | 35.19 | -118.52 | 3349 | |
| March Field | city | California | United States | 33.90 | -117.26 | 1669 | |
| Marchant | city | California | United States | 38.82 | -121.68 | 19 | |
| Marconi | city | California | United States | 38.14 | -122.88 | 3 | |
| Marcus Garvey Square | city | California | United States | 37.78 | -122.43 | 196 | |
| Marcuse (historical) | city | California | United States | 38.95 | -121.63 | 29 | |
| Maredith Mill | city | California | United States | 39.64 | -120.88 | 5209 | |
| Marguerite (historical) | city | California | United States | 37.17 | -120.18 | 295 | |
| Marian Place | city | California | United States | 40.31 | -121.82 | 2769 | |
| Mariana Ranchos | city | California | United States | 34.42 | -117.20 | 3349 | |
| Maricopa | city | California | United States | 35.06 | -119.40 | 859 | |
| Mariemont | city | California | United States | 38.71 | -120.94 | 1197 | |
| Marigold | city | California | United States | 34.08 | -117.24 | 1108 | |
| Marigold (historical) | city | California | United States | 39.18 | -121.46 | 101 | |
| Marin City | city | California | United States | 37.87 | -122.51 | 160 | |
| Marina | city | California | United States | 36.68 | -121.80 | 65 | |
| Marina District | city | California | United States | 37.80 | -122.44 | 190 | |
| Marina Park | city | California | United States | 33.61 | -117.92 | 0 | |
| Marina Travel Park | city | California | United States | 40.58 | -122.37 | 830 | |
| Marina Village | city | California | United States | 38.72 | -121.09 | 830 | |
| Marina del Rey | city | California | United States | 33.98 | -118.45 | 0 | |
| Marine Terrace | city | California | United States | 35.55 | -121.09 | 0 | |
| Marinwood | city | California | United States | 38.04 | -122.54 | 78 | |
| Mariposa | city | California | United States | 37.48 | -119.97 | 2509 | |
| Mark West Springs | city | California | United States | 38.55 | -122.72 | 830 | |
| Marklee Village | city | California | United States | 38.69 | -119.80 | 5869 | |
| Markleeville | city | California | United States | 38.69 | -119.78 | 5869 | |
| Marks Place | city | California | United States | 39.70 | -123.16 | 2060 | |
| Marlboro | city | California | United States | 33.81 | -117.86 | 180 | |
| Marne | city | California | United States | 34.01 | -117.91 | 377 | |
| Mars | city | California | United States | 35.42 | -116.89 | 3349 | |
| Marsh Creek Springs | city | California | United States | 37.89 | -121.85 | 830 | |
| Marsh Mill | city | California | United States | 39.44 | -120.70 | 6072 | |
| Marshall | city | California | United States | 38.16 | -122.89 | 124 | |
| Marshall Junction | city | California | United States | 37.01 | -119.57 | 1669 | |
| Martell | city | California | United States | 38.37 | -120.80 | 1669 | |
| Martin Luther King Square | city | California | United States | 37.78 | -122.43 | 196 | |
| Martinez | city | California | United States | 38.02 | -122.13 | 32 | |
| Martinez | city | California | United States | 38.02 | -120.38 | 2509 | |
| Martinez | city | California | United States | 33.56 | -116.15 | -1689 | |
| Martinez Place | city | California | United States | 35.29 | -120.17 | 1968 | |
| Martins | city | California | United States | 34.57 | -118.66 | 2509 | |
| Martins Beach | city | California | United States | 37.37 | -122.41 | 111 | |
| Martins Ferry (historical) | city | California | United States | 41.21 | -123.76 | 200 | |
| Martinus Corner | city | California | United States | 35.94 | -121.12 | 984 | |
| Marty (historical) | city | California | United States | 38.63 | -121.58 | 16 | |
| Mary Ellen Place | city | California | United States | 40.12 | -122.63 | 1669 | |
| Mary Manor Mobile Estates | city | California | United States | 37.38 | -122.05 | 118 | |
| Marysville | city | California | United States | 39.15 | -121.59 | 59 | |
| Mascorini Place | city | California | United States | 36.36 | -121.52 | 2670 | |
| Massack | city | California | United States | 39.93 | -120.84 | 4189 | |
| Matchin | city | California | United States | 36.33 | -119.13 | 396 | |
| Mather | city | California | United States | 37.88 | -119.86 | 4576 | |
| Mather Field | city | California | United States | 38.57 | -121.30 | 88 | |
| Matheson | city | California | United States | 40.66 | -122.46 | 830 | |
| Mathews Mill | city | California | United States | 37.12 | -119.37 | 3349 | |
| Matilija | city | California | United States | 34.44 | -119.26 | 830 | |
| Matilija Springs | city | California | United States | 34.48 | -119.31 | 1998 | |
| Mattei | city | California | United States | 36.70 | -119.69 | 298 | |
| Matthaeopolis | city | California | United States | 37.56 | -122.33 | 95 | |
| Mattos | city | California | United States | 37.55 | -122.02 | 98 | |
| Mauntin Vyu | city | California | United States | 37.39 | -122.08 | 127 | |
| Maxson | city | California | United States | 34.08 | -118.01 | 236 | |
| Maxwell | city | California | United States | 39.28 | -122.19 | 82 | |
| Maxwell Park | city | California | United States | 37.78 | -122.20 | 196 | |
| Maxwellton (historical) | city | California | United States | 35.20 | -120.62 | 262 | |
| May | city | California | United States | 33.90 | -117.49 | 938 | |
| May (historical) | city | California | United States | 38.42 | -121.01 | 200 | |
| Mayaro | city | California | United States | 39.82 | -121.42 | 1669 | |
| Maybert (historical) | city | California | United States | 39.35 | -120.70 | 3536 | |
| Mayfair | city | California | United States | 35.34 | -118.91 | 830 | |
| Mayfield | city | California | United States | 37.43 | -122.14 | 137 | |
| Mayflower (historical) | city | California | United States | 39.04 | -120.82 | 3349 | |
| Mayflower (historical) | city | California | United States | 33.06 | -115.46 | -1689 | |
| Mayflower Village | city | California | United States | 34.12 | -118.01 | 354 | |
| Mayhew | city | California | United States | 38.57 | -121.35 | 52 | |
| Maywood | city | California | United States | 33.99 | -118.19 | 98 |