Split Rock Township is a township in Carlton County, Minnesota, United States. The population was 124 as of the 2000 census. As of the census of 2000, there were 124 people, 55 households, and 31 families residing in the township. The population density was 3.4 people per square mile (1.3/km²). There were 100 housing units at an average density of 2.7/sq mi (1.1/km²). The racial makeup of the township was 99.19% White, and 0.81% from two or more races. Hispanic or Latino of any race were 0.81% of the population. 31.9% were of Polish, 20.4% Finnish, 15.0% German and 11.5% American ancestry according to Census 2000