Lake Holiday, IL has a population of 4,718 and is the 6,720th largest city in the United States. The population density is 1,473 per sq mi which is 563% higher than the Illinois average and 1526% higher than the national average. The median age in Lake Holiday is 41 which is approximately 10% higher than the Illinois average of 37. In Lake Holiday, 66% of the population over 15 years of age are married, 96% speak English and 2% speak Spanish. 78% of Lake Holiday residents were born in Illinois, 18% were born out of state, 1% were born outside of the United States and 3% were foreign born.