This is from their website:
Schlage was acquired by Ingersoll Rand, a Fortune 150 manufacturer of industrial, mining, and construction equipment, in 1974. As a result of the acquisition, Schlage Lock became part of the Ingersoll Rand Door Hardware Group.
Expansion continued under Ingersoll Rand, and, in 1975, Schlage acquired lock manufacturing facilities in New Zealand.
The Security, Colorado, plant located just south of Colorado Springs was opened in 1976 and now produces Schlage's cylindrical and mortise locksets as well as Schlage's Patented Key Systems.
Schlage also operates plants in Tecate and Ensenada Mexico, where locks are assembled and some parts are manufactured, plated, and polished.
No mention of the far east. They say cylindrical locksets are built in Colorado, it's not clear just what locks are built in the Mexico plants.