Clearbrook is a city in Clearwater County, Minnesota, United States. The population was 518 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.1 km²), all of it land.
As of the census of 2000, there were 551 people, 237 households, and 127 families residing in the city. The population density was 1,239.6 people per square mile (483.5/km²). There were 259 housing units at an average density of 582.7 per square mile (227.3/km²). The racial makeup of the city was 96.19% White, 1.45% Native American, 0.36% Asian, 0.18% from other races, and 1.81% from two or more races. Hispanic or Latino of any race were 0.73% of the population.