Crescent City, IL has a population of 692 and is the 17,556th largest city in the United States. The population density is 1,373 per sq mi which is 517% higher than the Illinois average and 1415% higher than the national average. The median age in Crescent City is 40 which is approximately 7% higher than the Illinois average of 37. In Crescent City, 60% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 92% of Crescent City residents were born in Illinois, 8% were born out of state, 0% were born outside of the United States and 0% were foreign born.