20191 ZIP Code — Reston, VA

Fairfax County, Virginia

ZIP code 20191 is located in Reston, Virginia, within Fairfax County. It covers approximately 7.76 square miles and serves a population of 29,758 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 703/571.

About ZIP code 20191

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $582,400. Owner-occupancy sits near the national average at 71%.

The gap between median ($139,932) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 29 minutes is near the national average. Remote work is prevalent — 23% of workers work from home.

Educational attainment is high — 65% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 20191 reflects a community defined by a highly educated population and a high rate of remote workers.

29,758

population

7.76

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

20191 ZIP code map

Cities in ZIP code 20191

Below are the cities the US Postal Service accepts for ZIP code 20191. Using any city not on this list may result in mail delivery delays.

City	Status
Reston	Acceptable
Reston	Preferred

Nearby ZIP codes

20192 Herndon (1.3 mi) 20190 Reston (2.1 mi) 20171 Herndon (2.2 mi) 22096 Reston (2.3 mi) 20196 Reston (2.3 mi) 22124 Oakton (2.9 mi) 22095 Herndon (3.3 mi) 22181 Vienna (3.5 mi) 20194 Reston (3.6 mi) 22033 Fairfax (3.8 mi) 20170 Herndon (4 mi) 22182 Vienna (4.5 mi)

Demographics updated 05/2026

Population
Total population	29,758
Population density	3,835 / sq mi
State FIPS	51
County FIPS	059

Geography
Land area	7.76 sq mi
Water area	0.17 sq mi
Latitude	38.9311
Longitude	-77.3514
Timezone	Eastern (ET)
Area code	703/571

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	17.4%	16.6%	32.9%
$50k – $100k	23.8%	22.2%	29.2%
$100k – $200k	37.1%	34.9%	26.3%
Over $200k	21.7%	26.4%	11.6%

Demographics & statistics

29,758

Population

3,835

People per sq mi

39.3

Median age

$139,932

Median household income

$67,213

Per capita income

$582,400

Median home value

$1,937

Median monthly rent

70.5%

Home ownership

5.5%

Poverty rate

4.9%

Unemployment

8,968

Housing units

65.3%

Bachelor's or higher

Age distribution

Male Female

926

Under 5

961

872

5–9

904

724

10–14

751

791

15–19

820

828

20–24

858

2,322

25–34

2,409

1,998

35–44

2,073

1,799

45–54

1,867

899

55–59

932

959

60–64

995

1,373

65–74

1,425

901

75–84

934

214

85+

223

← Male

Female →

Age summary

Group	Count	%
Under 18	6,113	20.5%
18 and over	23,645	79.5%
65 and over	5,070	17.0%
Median age	39.3 years

Race & ethnicity

White 55%

Asian 11.3%

Two or more races 10.4%

Hispanic or Latino 9.5%

Black or African American 9.3%

Other race 4.2%

American Indian / Alaska Native 0.3%

Group	Count	%
White	18,074	55%
Asian	3,726	11.3%
Two or more races	3,408	10.4%
Hispanic or Latino	3,130	9.5%
Black or African American	3,051	9.3%
Other race	1,396	4.2%
American Indian / Alaska Native	103	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	17.4%	16.6%	32.9%
$50k – $100k	23.8%	22.2%	29.2%
$100k – $200k	37.1%	34.9%	26.3%
Over $200k	21.7%	26.4%	11.6%

Under $10k 2.5%

$10k–$15k 2.0%

$15k–$25k 2.8%

$25k–$35k 3.9%

$35k–$50k 5.1%

$50k–$75k 9.4%

$75k–$100k 8.6%

$100k–$150k 19.2%

$150k–$200k 18.0%

$200k+ 28.5%

Range	% of households
Under $10k	2.5%
$10k–$15k	2.0%
$15k–$25k	2.8%
$25k–$35k	3.9%
$35k–$50k	5.1%
$50k–$75k	9.4%
$75k–$100k	8.6%
$100k–$150k	19.2%
$150k–$200k	18.0%
$200k+	28.5%
Median income	$139,932

Housing

Home values

Under $50k 0.8%

$50k–$100k 0.9%

$100k–$150k 0.9%

$150k–$200k 0.8%

$200k–$300k 9.4%

$300k–$500k 26.6%

$500k–$1M 55.5%

$1M+ 5.1%

Housing overview

Metric	Value
Median home value	$582,400
Median rent / month	$1,937
Owner occupied	70.5%
Renter occupied	29.5%
Vacant	4.9%
Single-family detached	28.8%
Large apartment buildings	10.7%
Mobile homes	0.2%
Median rooms	6.2
Avg household size (owned)	2.47

Year built

Era	%
2020 or later	1.7%
2010–2019	3.6%
2000–2009	1.2%
1990–1999	4.4%
1980–1989	27.7%
1970–1979	51.3%
1960–1969	8.7%
1950–1959	0.5%
1940–1949	0.4%
1939 or earlier	0.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	8.0%
2 bedrooms	22.9%
3 bedrooms	35.8%
4 bedrooms	24.5%
5+ bedrooms	6.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.6%
1 vehicle	35.5%
2 vehicles	45.3%
3 or more	15.5%

Heating fuel

Fuel type	%
Utility gas	39.5%
Electricity	57.2%
Propane / LP gas	0.5%
Fuel oil	2.0%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	6,002	50.6%
Cohabiting couple	747	6.3%
Male householder, no spouse	1,800	15.2%
Female householder, no spouse	3,314	27.9%
Households with children under 18	3,495	29.5%
Households with seniors (65+)	3,546	29.9%
Average household size	2.51

Marital status

Status	Male	Female
Never married	35.5%	30.5%
Married	54.9%	48.6%
Separated	0.5%	2.2%
Widowed	1.8%	6.2%
Divorced	7.3%	12.5%

Education

Less than 9th grade 2.9%

Some HS, no diploma 3.1%

HS graduate 11.0%

Some college, no degree 12.1%

Associate's degree 5.6%

Bachelor's degree 34.7%

Graduate / professional 30.6%

Metric	%
HS diploma or higher	94.0%
Bachelor's or higher	65.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	417	6.0%
Kindergarten	480	6.9%
Elementary school	2,372	34.1%
High school	1,498	21.5%
College / grad school	2,197	31.5%

Employment

Industry of employment

Professional & management 28.8%

Education & healthcare 19.2%

Public administration 10.0%

Arts, food & hospitality 8.6%

Finance & real estate 6.1%

Retail trade 5.4%

Other services 5.3%

Transportation & utilities 5.0%

Construction 4.1%

Manufacturing 3.6%

Information 2.0%

Wholesale trade 1.4%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	63.2%
Service	14.0%
Sales & office	16.0%
Natural resources & construction	3.2%
Production & transportation	3.6%

Employment type

Type	%
Private sector	77.4%
Government	18.6%
Self-employed	3.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	55.9%
Carpool	9.2%
Public transit	7.7%
Walk	0.9%
Work from home	23.3%
Other means	2.9%
Avg commute (minutes)	28.7

Poverty

All people 5.5%

Under 18 years 4.6%

18 and over 5.7%

Married-couple families 1.6%

Female-led households 18.5%

Income support

Source	% of households
Social Security	24.1%
Retirement income	25.2%
Supplemental Security	3.7%
Cash public assistance	2.2%
Food stamps / SNAP	5.4%

Health indicators

Condition	%
Obesity	24.1%
High blood pressure	27.8%
High cholesterol	30.9%
Diabetes	8.2%
Heart disease	4.2%
Stroke	2.0%
Asthma	8.4%
Arthritis	20.0%
Kidney disease	2.2%
Pulmonary disease	4.1%
Cancer	5.8%

Behavior / access	%
Smoking	10.4%
Binge drinking	16.2%
No physical activity	15.9%
Less than 7 hrs sleep	31.7%
Depression	16.9%
Fair or poor health	10.1%
Poor mental health	11.5%
Poor physical health	7.1%
No health insurance	11.7%
Visited doctor (checkup)	73.0%
Visited dentist	73.7%
Cholesterol screening	91.8%
Teeth loss	5.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,679	7.1%

Disability	%
Any disability	7.8%
Under 18	3.3%
18–64 years	5.2%
65 and over	23.1%

Health insurance coverage

Type	%
Private insurance	81.9%
Public insurance	25.6%
No insurance	6.3%
Uninsured under 19	4.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	27,871	93.7%
Spanish	3,488	12.5%
Other Indo-European	1,736	6.2%
Asian & Pacific Islander	666	2.4%
Other languages	729	2.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	21,522	72.3%
Born in same state	20,540	69.0%
Born in different state	8,967	30.1%
Foreign born	982	3.3%
Naturalized citizen	8,236	27.7%
Not a US citizen	5,076	61.6%

Ancestry

Ancestry	Count	%
French	3,564	12%
Italian	3,124	10.5%
Arab	930	3.1%
Polish	611	2.1%
English	347	1.2%

Ancestry	Count	%
Dutch	129	0.4%
German	86	0.3%
Irish	72	0.2%
Norwegian	29	0.1%

Technology access

Metric	% of households
Computer access	39.9%
Internet access	98.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 20191

What city is ZIP code 20191 in?

ZIP code 20191 is primarily assigned to Reston, Virginia.

What county is ZIP code 20191 in?

ZIP code 20191 falls within Fairfax County, Virginia.

How educated is the population of ZIP code 20191?

65% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 20191?

The median household income in ZIP code 20191 is $139,932, above the national median of ~$75,000.

What is the typical home value in ZIP code 20191?

The median home value in ZIP code 20191 is $582,400.

What is the population of ZIP code 20191?

ZIP code 20191 has an estimated population of 29,758 residents, with a density of 3,837 people per square mile.

What timezone is ZIP code 20191 in?

ZIP code 20191 observes the EST timezone.