Morton, IL has a population of 16,343 and is the 2,615th largest city in the United States. The population density is 1,254 per sq mi which is 464% higher than the Illinois average and 1284% higher than the national average. The median age in Morton is 41 which is approximately 9% higher than the Illinois average of 37. In Morton, 69% of the population over 15 years of age are married, 96% speak English and 2% speak Spanish. 77% of Morton residents were born in Illinois, 19% were born out of state, 1% were born outside of the United States and 3% were foreign born.