New Mexico - Area of significance: Architecture
| L. C. Ranch Headquarters |
| Lea County Courthouse |
| Lea Theater |
| Lebanon Lodge No. 22 |
| Ledoux Rural Historic District |
| LeFeber, Charles, House |
| Lembke House |
| Leverett, William J., House |
| Lewellen House |
| Lewis, Charles W. Building |
| Library Park Historic District |
| Light Hall |
| Lincoln Park Historic District |
| Longfellow School |
| Lopez, Hilario, House |
| Lordsburg-Hidalgo County Library |
| Lordsburg High School |
| Los Brazos Historic District |
| Los Candelarias Chapel-San Antonio Chapel |
| Los Duranes Chapel |
| Los Griegos Historic District |
| Los Luceros Hacienda |
| Los Ojos (Parkview) Fish Hatchery |
| Los Ojos (Parkview) Historic District |
| Los Poblanos Historic District |
| Lovington Fire Department Building |
| Lucero y Montoya, Francisco, House |
| Luhan, Mabel Dodge, House |
| Lujan-Ortiz House |
| Lukins, F. L., House |
| Luna County Courthouse and Park |
| Luna Lodge |
| Luna Theater |
| Luna, Tranquilino, House |
| MacDonald Merchandise Building |
| MacFie, Franklin, House |
| MacTavish House |
| Madrid Historic District |
| Magdaline House |
| Mahoney Building |
| Main Library |
| Main Street Commercial Building |
| Maisel's Indian Trading Post |
| Mallette, Orin, Cabin |
| Mallette, Sylvester M., Cabin |
| Mangas Mountain Lookout Complex |
| Mann, Henry, House |
| Manzanares, Tony, House |
| Manzano Court Addition Historic District |
| Martinez, Gilbert, Barn |
| Martinez, Severino, House |
| Martinez, Teodoro, House |
| Mauldin-Hall House |
| Maxwell-Abreu and North (Martinez) Houses |
| Mayhill Administrative Site |
| McCanna-Hubbell Building |
| McCoy, Harvey, House |
| McCoy-Maddox House |
| McGee House |
| McKinley County Courthouse |
| Medical Arts Historic District |
| Meem, John Gaw and Faith Bemis, House |
| Melson-Oldham Cabin |
| Menard-Galaz House |
| Mesa Ranger Station Barn, Lincoln County, New Mexico |
| Mesilla Park Elementary School |
| Mesilla Park Historic District |
| Mesquite Street Original Townsite Historic District |
| Metropolitan Park Bathhouse and Pool Historic District |
| Meyers House |
| Midway Service Station |
| Miller, George Tambling and Ninette Stocker, House |
| Millhiser-Baker Farm |
| Mills House |
| Mimbres School |
| Modern Auto Court |
| Mogollon Baldy Lookout Cabin |
| Mogollon Historic District |
| Moise, Julius J., House |
| Monjeau Lookout |
| Monte Vista and College View Historic District |
| Monte Vista Fire Station |
| Monte Vista School |
| Montezuma Hotel Complex |
| Moore-Ward Cobblestone House |
| Mora Historic District |
| Morris' No. 41 Archeological District |
| Mountainair Municipal Auditorium |
| NAN Ranch |
| Nara Visa School |
| National Park Service Southwest Regional Office |
| Newlander Apartments |
| New Mexico-Arizona Wool Warehouse |
| New Mexico Military Institute Historic District |
| New Mexico Military Institute Summer Camp, Main Building |
| New Mexico Supreme Court Building |
| New Mexico Territorial and State Capitol |
| Nogales Cliff House (AR-03-10-02-124) |
| Nolan House |
| Nordfeldt, B. J. O. and Margaret Doolittle, House |
Data from United States Park Service and Wikidata
