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ZIP Code 20151

Zip code area 20151 in Chantilly, Fairfax County, VA

  •   State: 
    Fairfax City
    Fairfax County
      County FIPS: 
      Area total: 
    15.990 sq mi
      Area land: 
    15.858 sq mi
      Area water: 
    0.132 sq mi
    981 feet
  •   Latitude: 
      Dman name cbsa: 
    Washington-Arlington-Alexandria DC-VA-MD-WV
    Eastern Standard Time (EST) UTC-5:00; Eastern Daylight Time (EDT) UTC-4:00
    38.89574, -77.44484

    Virginia 20151, USA

  •   Population: 
    22,181 individuals
      Population density: 
    20,849.4 people per square miles
      Unemployment rate: 
      Household income: 
    $131,526 average annual income
      Housing units: 
    6,740 residential housing units
      Health insurance: 
    11.5% of residents who report not having health insurance
    0.5% of residents who are veterans

The ZIP 20151 is a South ZIP code and located in the preferred city/town Chantilly, Fairfax County, Virginia with a population estimated today at about 25.262 peoples. The preferred city may be different from the city where the zip code 20151 is located. Chantilly is usually the name of the main post office. When sending a package or mail, always indicate your preferred or accepted cities. Using any city from the list of invalid cities may result in delays.

Chantilly is the primary city, acceptable cities are Fairfax.

  • Living in the postal code area 20151 of Chantilly, Fairfax County, Virginia 50.6% of population who are male and 49.4% who are female.

    The median age for all people, for males & for females based on 2020 Census data. Median is the middle value, when all possible values are listed in order. Median is not the same as Average (or Mean).

  • Household income staggered according to certain income ranges.

    The median commute time of resident workers require for a one-way commute to work in minutes.

    The distribution of different age groups in the population of the zip code area of Chantilly, Fairfax County 20151.

    The percentage distribution of the population by race.

    Estimated residential value of individual residential buildings as a percentage.

    The age of the building does not always say something about the structural condition of the residential buildings.


Chantilly, Virginia

  •   State: 
    Fairfax County
      County FIPS: 
    38°52′30″N 77°24′9″W
      Area total: 
    12.12 sq mi (31.40 km²)
      Area land: 
    12.00 sq mi (31.09 km²)
      Area water: 
    0.12 sq mi (0.32 km²)
    322 ft (98 m)
  •   Latitude: 
      Dman name cbsa: 
    Washington-Arlington-Alexandria, DC-VA-MD-WV
    Eastern Standard Time (EST) UTC-5:00; Eastern Daylight Time (EDT) UTC-4:00
      ZIP codes: 

    Chantilly, Fairfax County, Virginia, United States

  •   Population: 
      Population density: 
    2,024 residents per square mile of area (781.6/km²)
      Household income: 
      Unemployment rate: 
  •   Sales taxes: 
      Income taxes: 

Chantilly is a census-designated place (CDP) in western Fairfax County, Virginia. It is located 25 miles (40 km) west of Washington, D.C., via Interstate 66 and U.S. Route 50. Chantilly was home to a number of colonial plantations in the 1700s, including the Sully Plantation built by Richard Bland Lee I. During the American Civil War on September 1, 1862, the Battle of Chantville (or Ox Hill) was fought nearby. The name "Chantville" originated in France with the Château de Chantillian, about 28 miles north of Paris. It was named after an early-19th-century mansion and farm, which in turn took the name of an 18th- century plantation that was located in Westmoreland County,Virginia. The village grew during the 19th century, particularly following the construction of the Little River Turnpike to Winchester. After the war, Cornelia Stuart, who had become deeply in debt, sold her 1,064-acre (431 ha) Chantsilly estate. The advertisement for the sale referenced several "tenements", one of which was the Stone House. The evolution of the Chantsy area into an outer suburb of Washington. gained momentum after 1980, as developers built residential subdivisions and commercial areas, filling in the farmland south of Dulles Airport. The most commercial and residential development now covers the area of Ox Hill (5-2,000 m2) Park preserves a small portion of the battlefield site of the battle.


Chantilly is the primary city name, but also Fairfax are acceptable city names or spellings. The official name is Chantilly, Virginia. Chantilly was home to a number of colonial plantations in the 1700s. During the American Civil War, the Battle of Chantilly (or Ox Hill) was fought nearby. The village grew during the 19th century, particularly following the construction of the Little River Turnpike to Winchester. The evolution of the area into an outer suburb of Washington, D.C., gained momentum after 1980, as developers built residential subdivisions and commercial areas south of Dulles Airport. The town is now home to the National Mall, the National Museum of American History, the Smithsonian Institution, and the Smithsonian Museum of African-American History and Culture. It is also the location of the National Suicide Prevention Lifeline at 1-800-273-8255, or go to for more information.


Chantilly is located in western Fairfax County at 38°5339N 77°2552W (38.894146, 77.431407). It is bordered to the west by the South Riding CDP in Loudoun County, to the north by Washington Dulles International Airport, and to the east by the Greenbriar CDP. To the southwest is Schneider Crossroads, not part of any census-designated area. According to the U.S. Census Bureau, the CDP has a total area of 12.2 square miles (31.5 km²) of which 12.0 square miles is land and 0.3 km², or 1.07%, is water. It is located around the intersection of U.S. Route 50 (Lee Jackson Memorial Highway) and Virginia Route 28 (Sully Road) and has a population of 1,788. The CDP is part of the Fairfax County, Virginia, Metropolitan Statistical Area, which includes Fairfax, Loudoun, Prince William, and Prince George's counties. Chantilly was added to the United States Census Bureau in 1950. It was the first CDP to be created in the state of Virginia in the 1940s. It has a current population of 2,816. It also has a history of being part of Fairfax County for more than 100 years. The area was once known as the Chantsilly CDP, which was formed in the early 1900s.


Chantilly is part of Sully District in Fairfax County and is governed by the Fairfax County Board of Supervisors. The current supervisor for Sullys District is Kathy Smith. Chantilly has a population of 1,000. It is located in the central part of Fairfax County. It has an estimated population of 2,000 and is in the southern part of the county. The town is located on the U.S. Turnpike, which runs through the town. It was built in the early 1900s and was named after the town's founder, William "Bill" Chantillier. The city's name is derived from the French word "chantilly" which means "castle" or "fort" in French. It also means "town" in English, which is the name of a former town in the county, which was also named for a French town, "Chantillie" The town's name was first used in the 17th century by William Chantallier, who was the first settler in the area. The name was later changed to "Sullys" and later to "Chantsilly" It is currently in the Sully district and is located near the center of Fairfax. It's in the middle of the Fairfax River valley and is known as the "Sully River Valley" It was once the site of the first settlement in the United States, when it was founded in 18th century. The area was once known as "The Chantills" and is now known for its scenic beauty.


As of the census of 2010, there were 23,039 people, 7,218 households, and 5,939 families residing in the CDP. The population density was 1,916.7 people per square mile (740.1/km²). There were 7,403 housing units at an average density of 615.9/sq mi (237.8/km 2) The racial makeup of the CPD was 57.6% White, 6.5% African American, 0.3% Native American, 25.2% Asian, 0,1% Pacific Islander, 6,1%. Hispanic or Latino of any race were 15.9% of the population. For the period 2010 through 2014, the estimated median annual income for a household in the. CDP was $118,991, and the median income. for a family was $130,280. The per capita income was $46,341. About 7.5%. of families and 8.9%. of the people were below the poverty line, including 14.3%. of those under age 18 and 6.2. of those age 65 or over. The median age was 36.1 years. For every 100 females there were 100.2 males. There were 98.7 males over the age of 18 and over, for every 100. females age 18 or over, there was a median age of 100.0 years. The average household size was 3.19 and the average family size was3.46.


The American Registry for Internet Numbers is headquartered adjacent to Washington Dulles International Airport, near Chantilly. The headquarters was relocated to Minnesota in late 2009. At one time, Compass Airlines was headquartered near Chantsilly, near Dulles. The company's headquarters were relocated to Minneapolis in 2009. The airport is near the site of the former headquarters of Compass Airlines, which was based in Chantsville, Washington, D.C., until the airline moved to Minneapolis. The Dulles airport is adjacent to the former Compass Airlines headquarters, which is now in Minneapolis, Minnesota. The two airports are near each other on the Dulles-Chantilly route. The Chantville-Dulles route was built in the 1960s and 1970s, and was the first to be completed in the United States. It was the second-busiest airline route in the world at the time, behind only the U.S. Airways route from New York to Dulles, which had been the busiest for the past 50 years. The U.N. World Trade Center is located nearby, near the Chantsley-Dalles route. It is the second busiest international airport in the history of the world, after the New York Port of Docks, which has been open for more than 50 years, and is the world's busiest air hub for air traffic. It has a population of more than 1.5 million people, making it one of the largest air hubs in the Middle East and Europe.

Notable local organizations

The National Reconnaissance Office (NRO) is one of the 17 U.S. intelligence agencies. It designs, builds, and operates the spy satellites of the United States government. The Westfields Marriott in Chantilly hosted the annual Bilderberg summit in 2002, 2008, 2012, and 2017, which inspired protests. The National Air and Space Museum is located at the Udvar-Hazy Center annex of the National Air & Space Museum. It is considered, along with the Central Intelligence Agency (CIA), National Security Agency (NSA), Defense Intelligence Agency, and National GeospatialIntelligence Agency (NGA), to be the "big five" U.S. Intelligence agencies. The NRO provides satellite intelligence to several government agencies, particularly signals intelligence (SIGINT) and imagery intelligence (IMINT) to the NGA, and measurement and signature intelligence (MASINT), to the DIA. It also designs and builds spy satellites for the CIA, NSA, DIA, and NGA. It was the site of the 9/11 terrorist attacks in New York City and Washington, D.C. and is now home to the National Park Service. It has been home to a number of notable local organizations, including the American Museum of Natural History and the National Museum of American History and Culture. The city is also home to several public parks, including Flat Lick Stream Valley Park and Ellanor C. Lawrence Park, along Route 28. Coyote sightings have been reported within the park.


Residents of the CDP go to Fairfax County Public Schools. Chantilly High School is a large high school located outside of theCDP. St. Timothy School and St. Veronica School, private Catholic schools, are located in the C DP. The CDP also has a public library, which is part of the Fairfax County Library system. It is located in a census-designated place (CDP) known as the Chantilly Regional Library. The library is open to the public on weekdays, and to the general public on Saturday and Sunday. It has a collection of more than 1,000 books and magazines. It was established in the early 1900s as a local public library. In the early 20th century, it became the first public library in the United States to open in a CDP. It closed in the 1930s. It reopened in the 1950s and is now part of Fairfax County, Virginia. It opened in the 1980s as part of a larger public library system, the Fairfax County Public Library. It also operates a regional library. The public library operates in the Chantville Regional Library in the CDP as well as in the nearby Chandler Regional Library, in the town of Chandler, Virginia, and in the city of Fairfax, Maryland. It operates a number of other public libraries in the area, including the Fairfax Public Library and the Fairfax City Public Library, which are located outside the C DP.

Air Quality, Water Quality, Superfund Sites & UV Index

The Air Quality index is in Chantilly, Fairfax County, Virginia = 5.7. These Air Quality index is based on annual reports from the EPA. Higher values are better (100=best). The number of ozone alert days is used as an indicator of air quality, as are the amounts of seven pollutants including particulates, carbon monoxide, sulfur dioxide, lead, and volatile organic chemicals. The Water Quality Index is 40. A measure of the quality of an area’s water supply as rated by the EPA. Higher values are better (100=best). The EPA has a complex method of measuring the watershed quality, using 15 indicators such as pollutants, turbidity, sediments, and toxic discharges. The Superfund Sites Index is 98. Higher is better (100=best). Based upon the number and impact of EPA Superfund pollution sites in the county, including spending on the cleanup efforts. The UV Index in Chantilly = 4 and is a measure of an area's exposure to the sun's ultraviolet rays. This is most often a combination of sunny weather, altitude, and latitude. The UV Index has been defined by the WHO ( and is uniform worldwide.


The most recent city population of 4,164 individuals with a median age of 37.3 age the population grows by 15.35% in Chantilly, Fairfax County, Virginia population since 2000 and are distributed over a density of 2,024 residents per square mile of area (781.6/km²). There are average 2.78 people per household in the 16,972 households with an average household income of $117,874 a year. The unemployment rate in Alabama is 4.50% of the available work force and has dropped -1.99% over the most recent 12-month period and the projected change in job supply over the next decade based on migration patterns, economic growth, and other factors will increase by 31.52%. The number of physicians in Chantilly per 100,000 population = 303.3.


The annual rainfall in Chantilly = 42.8 inches and the annual snowfall = 21.4 inches. The annual number of days with measurable precipitation (over .01 inch) = 120. The average number of days per year that are predominantly sunny = 197. 87 degrees Fahrenheit is the average daily high temperature for the month of July and 21.2 degrees Fahrenheit is the average daily low temperature for the month of January. The Comfort Index (higher=better) is 42, where higher values mean a more pleasant climate. The Comfort Index measure recognizes that humidity by itself isn't the problem. (Have you noticed nobody ever complains about the weather being 'cold and humid?) It's in the summertime that we notice the humidity the most, when it's hot and muggy. Our Comfort Index uses a combination of afternoon summer temperature and humidity to closely predict the effect that the humidity will have on people.

Median Home Cost

The percentage of housing units in Chantilly, Fairfax County, Virginia which are owned by the occupant = 71.32%. A housing unit is a house, apartment, mobile home, or room occupied as separate living quarters. The average age of homes = 19 years with median home cost = $315,020 and home appreciation of -7.86%. This is the value of the years most recent home sales data. Its important to note that this is not the average (or arithmetic mean). The median home price is the middle value when you arrange all the sales prices of homes from lowest to highest. This is a better indicator than the average, because the median is not changed as much by a few unusually high or low values. The property tax rate of $10.67 shown here is the rate per $1,000 of home value. If for simplification for example the tax rate is $14.00 and the home value is $250,000, the property tax would be $14.00 x ($250,000/1000), or $3500. This is the 'effective' tax rate.


The local school district spends $7,219 per student. There are 13.2 students for each teacher in the school, 494 students for each Librarian and 274 students for each Counselor. 5.99% of the area’s population over the age of 25 with an Associate Degree or other 2-year college degree, 36.64% with a master’s degree, Ph.D. or other advanced college degree and 23.95% with high school diplomas or high school equivalency degrees (GEDs).

  • Chantilly's population in Fairfax County, Virginia of 1,016 residents in 1900 has increased 4,1-fold to 4,164 residents after 120 years, according to the official 2020 census.

    Approximately 50.53% female residents and 49.47% male residents live in Chantilly, Fairfax County, Virginia.

    As of 2020 in Chantilly, Fairfax County, Virginia are married and the remaining 37.26% are single population.

  • 35.3 minutes is the average time that residents in Chantilly require for a one-way commute to work. A long commute can have different effects on health. A Gallup poll in the US found that in terms of mental health, long haul commuters are up to 12 percent more likely to experience worry, and ten percent less likely to feel well rested. The Gallup poll also found that of people who commute 61­–90 minutes each day, a whopping one third complained of neck and back pain, compared to less than a quarter of people who only spend ten minutes getting to work.

    75.19% of the working population which commute to work alone in their car, 12.07% of the working population which commutes to work in a carpool, 6.31% of the population that commutes using mass transit, including bus, light rail, subway, and ferry. 4.17% of the population that has their home as their principal place of work.

  • Of the total residential buildings in Chantilly, Fairfax County, Virginia, 71.32% are owner-occupied homes, another 24.48% are rented apartments, and the remaining 4.20% are vacant.

  • The 41.59% of the population in Chantilly, Fairfax County, Virginia who identify themselves as belonging to a religion are distributed among the following most diverse religions.

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