Greenwood, DE has a population of 1,280 and is the 13,642nd largest city in the United States. The population density is 1,770 per sq mi which is 380% higher than the Delaware average and 1853% higher than the national average. The median age in Greenwood is 32 which is approximately 20% lower than the Delaware average of 40. In Greenwood, 54% of the population over 15 years of age are married, 89% speak English and 11% speak Spanish. 52% of Greenwood residents were born in Delaware, 39% were born out of state, 1% were born outside of the United States and 7% were foreign born.