Channahon, IL has a population of 12,329 and is the 3,344th largest city in the United States. The population density is 823 per sq mi which is 270% higher than the Illinois average and 808% higher than the national average. The median age in Channahon is 37 which is approximately 2% lower than the Illinois average of 37. In Channahon, 66% of the population over 15 years of age are married, 92% speak English and 5% speak Spanish. 84% of Channahon residents were born in Illinois, 12% were born out of state, 0% were born outside of the United States and 4% were foreign born.