Divernon, IL has a population of 1,201 and is the 14,028th largest city in the United States. The population density is 1,523 per sq mi which is 585% higher than the Illinois average and 1581% higher than the national average. The median age in Divernon is 39 which is approximately 3% higher than the Illinois average of 37. In Divernon, 59% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 87% of Divernon residents were born in Illinois, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.