Ardentown, DE has a population of 311 and is the 22,316th largest city in the United States. The population density is 1,319 per sq mi which is 258% higher than the Delaware average and 1356% higher than the national average. The median age in Ardentown is 51 which is approximately 28% higher than the Delaware average of 40. In Ardentown, 53% of the population over 15 years of age are married, 89% speak English and 4% speak Spanish. 51% of Ardentown residents were born in Delaware, 44% were born out of state, 0% were born outside of the United States and 5% were foreign born.