Long Creek, IL has a population of 1,508 and is the 12,651st largest city in the United States. The population density is 533 per sq mi which is 140% higher than the Illinois average and 488% higher than the national average. The median age in Long Creek is 45 which is approximately 20% higher than the Illinois average of 37. In Long Creek, 62% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 82% of Long Creek residents were born in Illinois, 17% were born out of state, 0% were born outside of the United States and 1% were foreign born.