Dahlgren is a city located in Virginia. Dahlgren has a 2020 population of 3,202. Dahlgren is currently declining at a rate of 0.00% annually and its population has increased by 20.69% 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 $95,448 with a poverty rate of 7.31%. The median rental costs in recent years comes to $1,046 per month, and the median house value is $272,700. The median age in Dahlgren is 30.7 years, 28.5 years for males, and 37.3 years for females. For every 100 females there are 103.0 males.