Trego is a town in Washburn County, Wisconsin, United States. The population was 885 at the 2000 census.The census-designated place of Trego is located in the town.Trego is located at the junction of U.S. Highway 53 and U.S. Highway 63, at 6 miles north-northeast of Spooner.Trego has a post office with ZIP code 54888.According to the United States Census Bureau, the town has a total area of 36.8 square miles, of which 35.9 square miles of it is land and 0.8 square miles of it is water.As of the census of 2000, there were 885 people, 347 households, and 242 families residing in the town. The population density was 24.6 people per square mile. There were 528 housing units at an average density of 14.7 per square mile. The racial makeup of the town was 96.95% White, 0.11% African American, 1.47% Native American, 0.23% Asian, 0.11% Pacific Islander, and 1.13% from two or more races. Hispanic or Latino of any race were 0.23% of the population.There were 347 households, out of which 32.