ureau, 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. The Ketoctin Baptist Church, also known as the Short Hill Church, whose cemetery dates to 1777, is located approximately two miles north of Route 7, at the junction of Allder School Rd. and Ketoctin Church Rd.
- U.S. Census Bureau (2010). "2010 Census". Retrieved 3 January 2013.
- Town of Round Hill Website
- "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- 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.