Kingston, IL has a population of 1,170 and is the 14,183rd largest city in the United States. The population density is 1,189 per sq mi which is 435% higher than the Illinois average and 1213% higher than the national average. The median age in Kingston is 34 which is approximately 9% lower than the Illinois average of 37. In Kingston, 58% of the population over 15 years of age are married, 91% speak English and 8% speak Spanish. 82% of Kingston residents were born in Illinois, 11% were born out of state, 1% were born outside of the United States and 5% were foreign born.