Gainesville is a city located in Prince William County Virginia. Gainesville has a 2020 population of 17,287. Gainesville is currently declining at a rate of 0.00% annually and its population has increased by 50.57% since the most recent census, which recorded a population of 11,481 in 2010. Gainesville reached it's highest population of 17,287 in 2019.
The average household income in Gainesville is $152,930 with a poverty rate of 3.57%. The median rental costs in recent years comes to $2,059 per month, and the median house value is $491,500. The median age in Gainesville is 34.7 years, 33.3 years for males, and 36.6 years for females.