Waterman is a village in DeKalb County, Illinois, United States. The population was 1,506 at the 2010 census, up from 1224 at the 2000 census.The village is known for the Waterman and Western train line that operates in Lion's Club Park. This 1/3 scale train line comprises a 1/2 mile train line circling the park and is a hobby of a local resident.Waterman is located at 41°46′15″N 88°46′29″W / 41.77083°N 88.77472°W / 41.77083; -88.77472.According to the 2010 census, Waterman has a total area of 1.482 square miles, of which 1.48 square miles is land and 0.002 square miles is water.As of the census of 2000, there were 1,224 people, 456 households, and 338 families residing in the village. The population density was 1,221.5 people per square mile. There were 471 housing units at an average density of 470.0 per square mile. The racial makeup of the village was 98.53% White, 0.25% African American, 0.08% Native American, 0.08% Asian, 0.57% from other races, and 0.