Hazel Crest, IL has a population of 13,924 and is the 3,004th largest city in the United States. The population density is 4,107 per sq mi which is 1701% higher than the Illinois average and 4433% higher than the national average. The median age in Hazel Crest is 40 which is approximately 6% higher than the Illinois average of 37. In Hazel Crest, 46% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 76% of Hazel Crest residents were born in Illinois, 21% were born out of state, 0% were born outside of the United States and 2% were foreign born.