Akodon spegazzinii is found in northwestern Argentina, in the provinces of Salta, Catamarca, Tucumán, La Rioja, and Mendoza, at altitudes of . Although its main distribution is in the northern provinces of Salta, Tucumán, and Catamarca, there are also scattered records from the more southern provinces of La Rioja and Mendoza, where it is likely restricted to patches of wet habitat. "Akodon alterus" has been reported from Jujuy, but this record was likely based on misidentified specimens of "A. boliviensis", and records of "Akodon spegazzinii" from Jujuy were based on misidentified "A. sylvanus". "Akodon spegazzinii" is known from a paleontological site in
2015 Argentine general election parties. Mendoza provided an early victory for the opposition, by the radical Alfredo Cornejo. Alberto Rodríguez Saá was elected governor of San Luis once again. The Front for Victory retained the provinces of San Juan and La Rioja, with Sergio Uñac and Sergio Casas. Lucía Corpacci was reelected in Catamarca and Gildo Insfrán was reelected in Formosa. In Chaco, Domingo Peppo was elected governor. Juan Manuel Urtubey got an important victory in Salta against Romero, and kept the province for the FPV. The radical Gerardo Morales was elected governor of Jujuy, the first non-Peronist one since the return of democracy