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
Catamarca Popular Movement alliance with the Union Cívica Radical. He was candidate for vicegovernor of Catamarca in the elections of 1987. It was member of the national Recrear electoral alliance led by Ricardo López Murphy. Catamarca Popular Movement The Catamarca Popular Movement () is a provincial political party from the Argentine Province of Catamarca, founded in 1983 by the Ob/Gyn physician Ignacio Joaquín Avalos (1933-2007). From his extensive knowledge of his province and its inhabitants gathered after many years of medical practice and soccer playing, he developed a need to do something for the people and awareness about the problems of the region,