Viesca is one of the 38 municipalities of Coahuila, in north-eastern Mexico. The municipal seat lies at Viesca. The municipality covers an area of 4203.5 km².
As of 2005, the municipality had a total population of 19,328.
Viesca (Spanish ) is a town and seat of the surrounding municipality of the same name, located in the northern Mexican state of Coahuila. At the last census, Viesca had a population of 19,328. Of this number 9,695 were men and 9,633 were women.
Viesca's primary economic activity was formerly a salt factory which provided most of the jobs in town. The factory was shut down in 1992. Today, the main workplaces are the sweatshop and auto parts assembly factories that still operate giving jobs for most of the economic activity.
Coordinates: 25°21′N 102°48′W / 25.350°N 102.800°W / 25.350; -102.800