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US ZIP Code Profile

ZIP Code 20191
Reston, Virginia

ZIP code 20191 is in Reston, located in Fairfax County, Virginia, within the Washington-Arlington-Alexandria metro area. Its 2020 Census population was 29,948. The estimated median adjusted gross income per tax return is $82,988, and about 18% of filers report $200,000 or more.

2020 Population
29,948
Census ZCTA
County
Fairfax
FIPS 51059
Median income (est.)
$82,988
IRS SOI 2022
Land Area
8.23 mi²
+ 0.173 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityReston, VA
CountyFairfax County (FIPS 51059)
StateVirginia (FIPS 51)
Metro Area (MSA)Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area (47900)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates38.933315, -77.35012
Land / Water Area8.23 mi² land · 0.173 mi² water

02Income & Economics

Distribution of the 16,320 individual tax returns filed in 20191 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.9%
$25K–$50K
15.1%
$50K–$75K
12.7%
$75K–$100K
10.4%
$100K–$200K
24.5%
$200K+
18.4%
The $200,000+ bracket accounts for 56% of 20191's total adjusted gross income, from 18% of returns — a concentration that drives the gap between the median ($82,988) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 20191's IRS income metrics, 2020–2022.

Median income (2021→2022)
$82,988
▲ 3.4%
Filers earning $200K+
18.4%
▲ 0.4 pt
Total filers
16,320
▲ 3.9%
GET /zipc/v2/zipcodes/20191/soi?year=… $74K 2020 $80K 2021 $83K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 20191 ZCTA.

2000
28,881
 
2010
29,128
▲ +0.9%
2020
29,948
▲ +2.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 20191. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 20191

Reston and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 20191 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortB
USPS Finance Number514212
City AliasesHerndon, Reston

07Frequently Asked Questions

What county is ZIP code 20191 in?

ZIP code 20191 is in Fairfax County, Virginia (county FIPS code 51059).

What city is ZIP code 20191?

The primary USPS city for 20191 is Reston, VA.

What metro area (MSA) is 20191 in?

20191 is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area (MSA code 47900).

What is the population of ZIP code 20191?

The 2020 Census population of 20191 was 29,948 residents.

What is the median income in ZIP code 20191?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 20191 is about $82,988, with around 18% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.