Arden is a village in New Castle County, Delaware, United States, founded in 1900 as a radical Georgist single-tax community by sculptor Frank Stephens and architect William Lightfoot Price. The village occupies approximately 160 acres, with half kept as open land. According to the 2010 census, the population of the village is 439. In 1973, the entire village was listed on the National Register of Historic Places.