Thawville is a village in Ridgeland Township, Iroquois County, Illinois, United States. The population was 258 at the 2000 census.Thawville is located at 40°40′26″N 88°6′48″W / 40.67389°N 88.11333°W / 40.67389; -88.11333.According to the 2010 census, Thawville has a total area of 0.33 square miles, all land.As of the census of 2000, there were 258 people, 102 households, and 74 families residing in the village. The population density was 797.4 people per square mile. There were 111 housing units at an average density of 343.1 per square mile. The racial makeup of the village was 96.12% White, 0.39% Asian, 3.10% from other races, and 0.39% from two or more races. Hispanic or Latino of any race were 5.04% of the population.There were 102 households out of which 33.3% had children under the age of 18 living with them, 61.8% were married couples living together, 6.9% had a female householder with no husband present, and 26.5% were non-families. 24.