Highland Acres, DE has a population of 3,792 and is the 7,686th largest city in the United States. The population density is 2,541 per sq mi which is 404% higher than the Delaware average and 2705% higher than the national average. The median age in Highland Acres is 41 which is approximately 5% higher than the Delaware average of 40. In Highland Acres, 65% of the population over 15 years of age are married, 92% speak English and 1% speak Spanish. 47% of Highland Acres residents were born in Delaware, 43% were born out of state, 3% were born outside of the United States and 7% were foreign born.