Reddick, IL has a population of 328 and is the 22,001st largest city in the United States. The population density is 1,330 per sq mi which is 498% higher than the Illinois average and 1368% higher than the national average. The median age in Reddick is 27 which is approximately 27% lower than the Illinois average of 37. In Reddick, 60% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 93% of Reddick residents were born in Illinois, 4% were born out of state, 0% were born outside of the United States and 2% were foreign born.