Gages Lake, IL has a population of 10,041 and is the 3,932nd largest city in the United States. The population density is 3,372 per sq mi which is 1417% higher than the Illinois average and 3622% higher than the national average. The median age in Gages Lake is 41 which is approximately 11% higher than the Illinois average of 37. In Gages Lake, 59% of the population over 15 years of age are married, 85% speak English and 8% speak Spanish. 65% of Gages Lake residents were born in Illinois, 23% were born out of state, 1% were born outside of the United States and 10% were foreign born.