Zip Code 20191
Reston, Virginia — Fairfax County
📍 ZIP code 20191 is in Reston, Fairfax County, Virginia.
ZIP code 20191 is located in Reston, Fairfax County, Virginia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 30,077. The area code for ZIP code 20191 is 202.
Quick Answer
Zip code 20191 is in Reston, Virginia (Fairfax County). It has a population of 30,077, median household income of $141,019, and median home value of $616,700.
Population
30,077
Income
$141,019
Home Value
$616,700
Climate
84°F / 23°F
About Zip Code 20191
Zip code 20191 is located in Reston, Virginia, within Fairfax County. Home to approximately 30,077 residents, this area sits at an elevation of 368 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 202.
The median household income is $141,019 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $616,700, and the cost of living index is 199 (99% above the national average of 100).
Summers average a high of 84°F while winters drop to 23°F. The area receives about 44 in of rain and 19 in of snow annually. The zip code covers 8.2 square miles of land area and 0.2 square miles of water.
Key Statistics
30,077
$141,019
$616,700
Eastern (EST/EDT)
202
368 ft
8.2 sq mi
39.5
12,744
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Compare With Nearby Zip Codes
| Metric | 20191 | 20190 | 20171 | 22124 | 20194 | 22181 |
|---|---|---|---|---|---|---|
| City | Reston, VA | Reston, VA | Herndon, VA | Oakton, VA | Reston, VA | Oakton, VA |
| Population | 30,077 | 22,092 | 50,796 | 18,915 | 12,334 | 15,529 |
| Median Income | $141,019 | $126,928 | $166,154 | $216,712 | $166,423 | $212,156 |
| Home Value | $616,700 | $568,500 | $770,200 | $979,900 | $792,200 | $928,400 |
| Cost of Living | 199 | 185 | 240 | 250 | 245 | 250 |
| Median Age | 39.5 | 40.4 | 35.8 | 43.3 | 43.8 | 42.6 |
Cost of Living
100 = National Average. Reston's cost of living is 99% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.4x
Demographics
Zip code 20191 has a population of 30,077 people with a median age of 39.5. There are 12,744 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Reston (20191) population trend from 2010 to 2024
↑ 7.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
23°F
44 in
19 in
Reston experiences warm summers with average highs around 84°F. Winters are cool with lows averaging 23°F. The area receives about 19 in of snow per year.
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Housing & Economy
Median Home Value
$616,700
Median Household Income
$141,019
With 12,744 housing units across 8.2 square miles, 20191 has a housing density of 1,554 units per square mile. The home price-to-income ratio is 4.4x.
Location & Geography
Latitude
38.9333°
Longitude
-77.3501°
Land Area
8.2 sq mi
Water Area
0.2 sq mi
Nearby Zip Codes
Zip codes closest to 20191 (Reston, VA) with distances:
All Zip Codes in Reston, VA
Other zip codes serving Reston:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 20191's $141,019. A way to compare Reston to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 20191 (Reston, VA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Reston, Virginia?
Reston, Virginia uses zip code 20191 along with 2 other zip codes.
What county is zip code 20191 in?
Zip code 20191 is located in Fairfax County, Virginia.
What is the population of zip code 20191?
The population of zip code 20191 is 30,077 with a median age of 39.5.
Is 20191 in Reston, Virginia?
Yes, zip code 20191 is in Reston, Fairfax County, Virginia. The area code is 202.
Frequently Asked Questions
What city is zip code 20191 in?
Zip code 20191 is in Reston, Virginia. It is part of Fairfax County and uses the Eastern (EST/EDT) timezone.
What is zip code 20191?
Zip code 20191 is a U.S. postal code in Reston, Virginia (Fairfax County). It has a population of 30,077 and covers 8.2 square miles.
What is the population of zip code 20191?
The population of zip code 20191 (Reston, VA) is 30,077 with a median age of 39.5. There are approximately 12,744 housing units in this area.
What is the median income in zip code 20191?
The median household income in zip code 20191 (Reston, VA) is $141,019 per year. The cost of living index is 199 (100 = national average).
What is the average home price in zip code 20191?
The median home value in zip code 20191 (Reston, VA) is $616,700. The cost of living index is 199 compared to the national average of 100.
What county is zip code 20191 in?
Zip code 20191 is located in Fairfax County, Virginia. The primary city is Reston.
What is the area code for zip code 20191?
Zip code 20191 in Reston, VA uses area code 202. It is located in the Eastern (EST/EDT) timezone.
Is zip code 20191 a good place to live?
Zip code 20191 (Reston, VA) has a cost of living index of 199 (100 = national average), a median household income of $141,019, and median home values of $616,700. The median age is 39.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 20191?
The cost of living index for zip code 20191 (Reston, VA) is 199, where 100 represents the national average. This area is above the national average. Median home value: $616,700.
What schools serve zip code 20191?
Zip code 20191 in Reston, Virginia is served by the local school district of Fairfax County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.