Alexis, IL has a population of 979 and is the 15,301st largest city in the United States. The population density is 2,062 per sq mi which is 827% higher than the Illinois average and 2176% higher than the national average. The median age in Alexis is 43 which is approximately 16% higher than the Illinois average of 37. In Alexis, 62% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 84% of Alexis residents were born in Illinois, 15% were born out of state, 1% were born outside of the United States and 0% were foreign born.