Dahlgren is a city located in King George County Virginia. Dahlgren has a 2020 population of 3,093. Dahlgren is currently declining at a rate of 0.00% annually and its population has increased by 16.58% since the most recent census, which recorded a population of 2,653 in 2010. Dahlgren reached it's highest population of 3,249 in 2016.
The average household income in Dahlgren is $93,629 with a poverty rate of 5.79%. The median rental costs in recent years comes to $1,140 per month, and the median house value is $266,000. The median age in Dahlgren is 29.4 years, 26.6 years for males, and 33.7 years for females.