Benld, IL has a population of 1,572 and is the 12,426th largest city in the United States. The population density is 1,483 per sq mi which is 567% higher than the Illinois average and 1537% higher than the national average. The median age in Benld is 38 which is approximately 1% higher than the Illinois average of 37. In Benld, 54% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 81% of Benld residents were born in Illinois, 18% were born out of state, 1% were born outside of the United States and 1% were foreign born.