Channel Lake, IL has a population of 1,416 and is the 13,035th largest city in the United States. The population density is 785 per sq mi which is 253% higher than the Illinois average and 766% higher than the national average. The median age in Channel Lake is 48 which is approximately 27% higher than the Illinois average of 37. In Channel Lake, 49% of the population over 15 years of age are married, 91% speak English and 5% speak Spanish. 75% of Channel Lake residents were born in Illinois, 21% were born out of state, 0% were born outside of the United States and 4% were foreign born.