Round Hill is a city located in Loudoun County Virginia. With a 2020 population of 644, it is the 154th largest city in Virginia and the 12226th largest city in the United States . Round Hill is currently declining at a rate of -0.92% annually but its population has increased by 19.48% since the most recent census, which recorded a population of 539 in 2010. Round Hill reached it's highest population of in . Spanning over 0 miles, Round Hill has a population density of 1,757 people per square mile.
The average household income in Round Hill is $125,919 with a poverty rate of 3.12%. The median rental costs in recent years comes to $1,611 per month, and the median house value is $416,200. The median age in Round Hill is 38.5 years, 38.9 years for males, and 38.2 years for females.