Stoughton, WI has a population of 13,041 and is the 3,197th largest city in the United States. The population density is 2,280 per sq mi which is 2508% higher than the Wisconsin average and 2417% higher than the national average. The median age in Stoughton is 39 which is approximately 1% higher than the Wisconsin average of 39. In Stoughton, 60% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 73% of Stoughton residents were born in Wisconsin, 24% were born out of state, 1% were born outside of the United States and 2% were foreign born.