Los Aldamas is a municipality located in the northeast part of the Mexican state of Nuevo Leon. Its geographic coordinates are . It is bordered to the north by the state of Tamaulipas, to the south with the municipalities of Doctor Coss and China, Nuevo Leon, to the east with the municipality of Dr. Coss, N.L and the state of Tamaulipas and to the west with the municipalities of General Treviño, Melchor Ocampo and Los Herreras, N.L.