Cumpas is a municipality in the state of Sonora in north-western Mexico. The municipal seat is at Cumpas. The area of the municipality is 2,01…Cumpas is a municipality in the state of Sonora in north-western Mexico. The municipal seat is at Cumpas. The area of the municipality is 2,013.50 km²., which represents 1.09% of the state total and 0.10% of the national total. The most important settlements, besides the municipal seat, are Los Hoyos, Jecori, Ojo de Agua, Kilometro 5 and Teonadepa.