Jamay is a municipality and town located in the eastern portion of the state of Jalisco, Mexico. It is situated at an elevation of 1,530 meters (5,020 ft) above sea level.
The geographical boundaries of the municipality extend from 20° 25' to 20° 13' N latitude and from 102° 38' to 102° 44' W longitude. Its specific coordinates are 20°17.4′N 102°42.6′W.