Aberdeen Proving Ground, MD has a population of 2,464 and is the 9,937th largest city in the United States. The population density is 221 per sq mi which is 65% lower than the Maryland average and 144% higher than the national average. The median age in Aberdeen Proving Ground is 24 which is approximately 39% lower than the Maryland average of 38. In Aberdeen Proving Ground, 45% of the population over 15 years of age are married, 82% speak English and 5% speak Spanish. 10% of Aberdeen Proving Ground residents were born in Maryland, 73% were born out of state, 5% were born outside of the United States and 12% were foreign born.