Long Neck, DE has a population of 2,656 and is the 9,459th largest city in the United States. The population density is 1,033 per sq mi which is 181% higher than the Delaware average and 1040% higher than the national average. The median age in Long Neck is 59 which is approximately 50% higher than the Delaware average of 40. In Long Neck, 64% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 23% of Long Neck residents were born in Delaware, 75% were born out of state, 0% were born outside of the United States and 2% were foreign born.