Ransom, IL has a population of 347 and is the 21,667th largest city in the United States. The population density is 347 per sq mi which is 56% higher than the Illinois average and 283% higher than the national average. The median age in Ransom is 44 which is approximately 18% higher than the Illinois average of 37. In Ransom, 54% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 91% of Ransom residents were born in Illinois, 8% were born out of state, 0% were born outside of the United States and 1% were foreign born.