Gull Lake is a town in Washburn County, Wisconsin, United States. The population was 158 at the 2000 census. As of the census of 2000, there were 158 people, 65 households, and 46 families residing in the town. The population density was 4.5 people per square mile (1.7/km²). There were 145 housing units at an average density of 4.1/sq mi (1.6/km²). The racial makeup of the town was 95.57% White, and 4.43% from two or more races. Hispanic or Latino of any race were 0.63% of the population.