Mallory, MinnesotaMallory is an unincorporated community in Polk County, in the U.S. state of Minnesota. Mallory is 830 feet above sea level and lies in the Central Time Zone.HistoryA post office called Mallory was established in 1880, and remained in operation until 1916. The community was named for Charles P. Mallory, a local businessperson in the lumber industry.