Nácori Chico is a municipality in the state of Sonora in northwestern Mexico, being the easternmost municipality in Sonora.

The municipal area is 2,748.67 km2 (1,061.27 mi2) with a population of 2,236 registered in 2000.

The seat is Nácori Chico.

Neighboring municipalities

Neighboring municipalities are: Huachinera to the north, Sahuaripa to the south, Bacadéhuachi to the west, and the state of Chihuahua to the east. Nácori Chico is connected by a dirt road to Bacadéhuachi

Towns and villages

The largest localities (cities, towns, and villages) are:

Name2020 Census Population
Nácori Chico816
La Mesa Tres Ríos463
El Sauz114
Buena Vista76
Tecoriname46
Tres Ríos5
El Pilar4
Total Municipality1,531

29°40′34″N 108°49′28″W/29.6760°N 108.8245°W/ 29.6760; -108.8245