New Athens, IL has a population of 2,106 and is the 10,712th largest city in the United States. The population density is 997 per sq mi which is 349% higher than the Illinois average and 1000% higher than the national average. The median age in New Athens is 35 which is approximately 8% lower than the Illinois average of 37. In New Athens, 64% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 87% of New Athens residents were born in Illinois, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.