North Henderson, IL has a population of 237 and is the 23,690th largest city in the United States. The population density is 1,047 per sq mi which is 371% higher than the Illinois average and 1056% higher than the national average. The median age in North Henderson is 39 which is approximately 4% higher than the Illinois average of 37. In North Henderson, 56% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 86% of North Henderson residents were born in Illinois, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.