Lake Villa, IL has a population of 8,916 and is the 4,303rd largest city in the United States. The population density is 1,369 per sq mi which is 516% higher than the Illinois average and 1411% higher than the national average. The median age in Lake Villa is 38 which is approximately equal to the Illinois average of 37. In Lake Villa, 64% of the population over 15 years of age are married, 87% speak English and 6% speak Spanish. 67% of Lake Villa residents were born in Illinois, 22% were born out of state, 1% were born outside of the United States and 10% were foreign born.