Indian Head Park, IL has a population of 3,823 and is the 7,649th largest city in the United States. The population density is 4,110 per sq mi which is 1749% higher than the Illinois average and 4436% higher than the national average. The median age in Indian Head Park is 49 which is approximately 32% higher than the Illinois average of 37. In Indian Head Park, 51% of the population over 15 years of age are married, 80% speak English and 4% speak Spanish. 74% of Indian Head Park residents were born in Illinois, 12% were born out of state, 2% were born outside of the United States and 12% were foreign born.