Round Hill, Loudoun County, Virginia
|• Mayor||Scott T. Ramsey|
|• Land||.2 sq mi (0.5 km2)|
|• Water||0 sq mi (0 km2)|
|Elevation||548 ft (167 m)|
|• Density||2,695/sq mi (1,041/km2)|
|Time zone||EST (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
Round Hill is a town in Loudoun County, Virginia, United States. Its population was estimated at 539 in 2010 by the U.S. Census Bureau. The town is located at the crossroads of Virginia routes 7 and 719 (Woodgrove Road), approximately 50 miles northwest of Washington, D.C. It was named "Round Hill" for being located two miles northeast of a 910-foot hill used during the American Civil War as a signal post by both Confederate and Union troops.
Round Hill was incorporated on February 5, 1900. From 1874 to 1900, the settlement had been the terminus of a Washington and Ohio rail line that ultimately became the Washington and Old Dominion Railroad. The railway allowed agricultural products to be brought into Washington, D.C., and allowed the residents of the District to escape to the surrounding countryside for holidays. Many of the town's older residences were originally boarding houses, inns, and taverns where people would go upon arrival. The town was considered a convenient destination as it lies close to the Shenandoah River (7 miles distant), the Shenandoah National Park (30 miles), the Appalachian Trail (4 miles), Harpers Ferry (15 miles), the Chesapeake & Ohio Canal Tow Path (used currently as a bike trail) (12 miles), and the paved Washington & Old Dominion Railroad Trail (3 miles).
The town has recently been ringed by fast-growing suburbs of Washington, D.C., that have brought thousands of residents to just outside the town. The town's water and sewer infrastructure is used to serve many of these new developments.
Round Hill is located at .(39.133625, -77.770217)
According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.52 km2), all of it land.
As of the census of 2010, 539 people in 202 households and 155 families resided in the town. The population density was 2,695 people per square mile (1040.5/km²). There were 218 housing units at an average density of 1090 per square mile (420.9/km²). Of that population, 93.32% was White; 2.78%, African American; 1.11%, Asian; and 0.93% of the population was mixed-race. Hispanics or Latinos of any race constituted 3.53% of the population.
There were 202 households out of which 40.6% had children under the age of 18 living with them, 59.9% were married couples living together, 12.9% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 23.3% were non-families. 19.8% of all households were made up of individuals and 5.5% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.06.
In the town the population was spread out with 30.7% under the age of 20, 5.5% from 20 to 29, 20.2% from 30 to 44, 34.0% from 45 to 64 (up from 23% in 2005), and 9.7% who were 65 years of age or older. The median age was 40.5 years (up from 36 years in 2005). For every 100 females there were 94.6 males. For every 100 females age 18 and over, there were 89.1 males.
The median estimated income for a household in the town in 2010 was $92,292, and the median estimated income for a family in 2010 was $93,750. Males had a median income of $79,000 versus $55,208 for females. The per capita income for the town was $39,380. In 2005, about 4.2% of families and 5.4% of the population were below the poverty line, including 3.5% of those under age 18 and 15.7% of those age 65 or over. Poverty level data was not provided for 2010.
Education and public service 
No public schools lie within the town limits, though Round Hill Elementary School lies just outside, within the "Villages of Round Hill" subdivision. As of January, 2013, the school listed 544 enrolled students. Secondary students are served by the Loudoun County Public School system, including Woodgrove High School in Purcellville.
Police protection is provided by the Loudoun County Sheriff's department. Fire protection and emergency medical services are provided by the Round Hill Volunteer Fire Department 4; the fire company and the rescue squad are volunteer organizations supplemented with staffing from the Loudoun County Fire and Rescue Department on a twenty-four-hour, seven-day-a-week basis.
The town maintains its own water and sewer system, which developers' proffers have supplemented in recent years.
The Washington Post, Washington Times, and Winchester Star all offer paid daily circulation in Round Hill. Weekly paid circulation is provided from Leesburg by the Loudoun Times-Mirror. Residents also receive the free weekly shopper publications Leesburg Today, Blue Ridge Leader and Purcellville Gazette, which contain mainly advertising.
Four churches are located in the town: Round Hill Baptist Church, Round Hill United Methodist Church, Mount Zion Baptist Church, and Western Loudoun Community Church.
Notable residents 
- U.S. Census Bureau (2010). "2010 Census". Retrieved 3 January 2013.
- Town of Round Hill Website
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- U.S. Census Bureau (2010). "2006-2010 American Community Survey 5-Year Estimates". Retrieved 3 January 2013.
- "Round Hill Elementary School Website". Retrieved 3 January 2013.