20170 ZIP Code — Herndon, VA

Fairfax County, Virginia

ZIP code 20170 is located in Herndon, Virginia, within Fairfax County. It covers approximately 8.76 square miles and serves a population of 43,557 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 703/571.

About ZIP code 20170

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $599,100. Owner-occupancy sits near the national average at 70%.

The gap between median ($151,136) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% 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 26 minutes is near the national average.

Educational attainment is high — 58% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Notable community characteristics include Spanish spoken in 21% of households.

43,557

population

8.76

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

20170 ZIP code map

Cities in ZIP code 20170

Below are the cities the US Postal Service accepts for ZIP code 20170. Using any city not on this list may result in mail delivery delays.

City	Status
Herndon	Preferred

Nearby ZIP codes

22095 Herndon (1 mi) 20194 Reston (2.2 mi) 20164 Sterling (2.3 mi) 20190 Reston (2.7 mi) 20192 Herndon (2.7 mi) 22096 Reston (2.8 mi) 20196 Reston (2.8 mi) 20171 Herndon (4 mi) 20191 Reston (4 mi) 20102 Dulles (4.2 mi) 22066 Great Falls (4.3 mi) 20165 Sterling (4.4 mi)

Demographics updated 05/2026

Population
Total population	43,557
Population density	4,972 / sq mi
State FIPS	51
County FIPS	059

Geography
Land area	8.76 sq mi
Water area	0.04 sq mi
Latitude	38.9837
Longitude	-77.3828
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	12.7%	16.6%	32.9%
$50k – $100k	24.3%	22.2%	29.2%
$100k – $200k	38.0%	34.9%	26.3%
Over $200k	25.0%	26.4%	11.6%

Demographics & statistics

43,557

Population

4,972

People per sq mi

35.4

Median age

$151,136

Median household income

$57,685

Per capita income

$599,100

Median home value

$2,162

Median monthly rent

70.2%

Home ownership

7.1%

Poverty rate

2.9%

Unemployment

10,084

Housing units

58.3%

Bachelor's or higher

Age distribution

Male Female

1,842

Under 5

1,601

1,652

5–9

1,435

1,481

10–14

1,286

1,368

15–19

1,189

1,544

20–24

1,342

3,589

25–34

3,118

3,460

35–44

3,006

2,979

45–54

2,589

1,698

55–59

1,475

1,222

60–64

1,061

1,664

65–74

1,445

629

75–84

546

180

85+

156

← Male

Female →

Age summary

Group	Count	%
Under 18	10,918	25.1%
18 and over	32,639	74.9%
65 and over	4,620	10.6%
Median age	35.4 years

Race & ethnicity

White 38.8%

Hispanic or Latino 20.5%

Other race 14.2%

Asian 11.8%

Two or more races 9.4%

Black or African American 5.1%

American Indian / Alaska Native 0.3%

Group	Count	%
White	21,237	38.8%
Hispanic or Latino	11,205	20.5%
Other race	7,754	14.2%
Asian	6,442	11.8%
Two or more races	5,160	9.4%
Black or African American	2,775	5.1%
American Indian / Alaska Native	189	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	12.7%	16.6%	32.9%
$50k – $100k	24.3%	22.2%	29.2%
$100k – $200k	38.0%	34.9%	26.3%
Over $200k	25.0%	26.4%	11.6%

Under $10k 1.3%

$10k–$15k 1.3%

$15k–$25k 1.6%

$25k–$35k 2.8%

$35k–$50k 3.7%

$50k–$75k 8.8%

$75k–$100k 11.7%

$100k–$150k 18.2%

$150k–$200k 14.9%

$200k+ 35.6%

Range	% of households
Under $10k	1.3%
$10k–$15k	1.3%
$15k–$25k	1.6%
$25k–$35k	2.8%
$35k–$50k	3.7%
$50k–$75k	8.8%
$75k–$100k	11.7%
$100k–$150k	18.2%
$150k–$200k	14.9%
$200k+	35.6%
Median income	$151,136

Housing

Home values

Under $50k 0.7%

$50k–$100k 0.3%

$100k–$150k 0.2%

$150k–$200k 0.9%

$200k–$300k 4.2%

$300k–$500k 26.6%

$500k–$1M 60.8%

$1M+ 6.3%

Housing overview

Metric	Value
Median home value	$599,100
Median rent / month	$2,162
Owner occupied	70.2%
Renter occupied	29.8%
Vacant	3.1%
Single-family detached	53.9%
Large apartment buildings	8.0%
Mobile homes	0.1%
Median rooms	6.8
Avg household size (owned)	3.15

Year built

Era	%
2020 or later	0.4%
2010–2019	3.0%
2000–2009	9.8%
1990–1999	15.5%
1980–1989	31.6%
1970–1979	31.4%
1960–1969	4.8%
1950–1959	1.2%
1940–1949	0.7%
1939 or earlier	1.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	6.6%
2 bedrooms	16.6%
3 bedrooms	29.4%
4 bedrooms	29.4%
5+ bedrooms	16.8%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	23.9%
2 vehicles	44.8%
3 or more	28.0%

Heating fuel

Fuel type	%
Utility gas	39.7%
Electricity	58.1%
Propane / LP gas	0.8%
Fuel oil	0.4%
Solar	0.4%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	8,553	62.3%
Cohabiting couple	800	5.8%
Male householder, no spouse	2,313	16.8%
Female householder, no spouse	2,063	15.0%
Households with children under 18	5,407	39.4%
Households with seniors (65+)	3,269	23.8%
Average household size	3.17

Marital status

Status	Male	Female
Never married	39.1%	29.3%
Married	53.0%	58.0%
Separated	0.7%	1.4%
Widowed	1.7%	3.9%
Divorced	5.4%	7.4%

Education

Less than 9th grade 7.4%

Some HS, no diploma 4.8%

HS graduate 12.4%

Some college, no degree 12.0%

Associate's degree 5.1%

Bachelor's degree 34.1%

Graduate / professional 24.2%

Metric	%
HS diploma or higher	87.8%
Bachelor's or higher	58.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	602	5.4%
Kindergarten	595	5.4%
Elementary school	4,555	41.0%
High school	2,361	21.2%
College / grad school	3,006	27.0%

Employment

Industry of employment

Professional & management 28.9%

Education & healthcare 13.7%

Retail trade 9.1%

Arts, food & hospitality 9.1%

Finance & real estate 7.4%

Public administration 6.6%

Construction 6.2%

Other services 5.8%

Transportation & utilities 4.5%

Information 3.4%

Manufacturing 3.2%

Wholesale trade 1.8%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	53.7%
Service	16.1%
Sales & office	16.3%
Natural resources & construction	6.3%
Production & transportation	7.6%

Employment type

Type	%
Private sector	78.3%
Government	14.5%
Self-employed	6.9%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	60.7%
Carpool	10.8%
Public transit	4.5%
Walk	1.9%
Work from home	19.4%
Other means	2.7%
Avg commute (minutes)	26.4

Poverty

All people 7.1%

Under 18 years 11.6%

18 and over 5.7%

Married-couple families 1.6%

Female-led households 24.6%

Income support

Source	% of households
Social Security	18.9%
Retirement income	18.9%
Supplemental Security	1.4%
Cash public assistance	1.8%
Food stamps / SNAP	5.0%

Health indicators

Condition	%
Obesity	23.8%
High blood pressure	24.4%
High cholesterol	28.1%
Diabetes	7.5%
Heart disease	3.4%
Stroke	1.7%
Asthma	8.1%
Arthritis	16.3%
Kidney disease	1.8%
Pulmonary disease	3.6%
Cancer	4.2%

Behavior / access	%
Smoking	11.4%
Binge drinking	17.1%
No physical activity	17.5%
Less than 7 hrs sleep	33.0%
Depression	16.3%
Fair or poor health	10.5%
Poor mental health	12.0%
Poor physical health	6.8%
No health insurance	15.0%
Visited doctor (checkup)	70.1%
Visited dentist	70.4%
Cholesterol screening	89.8%
Teeth loss	7.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,761	5.4%

Disability	%
Any disability	8.3%
Under 18	6.4%
18–64 years	5.3%
65 and over	30.9%

Health insurance coverage

Type	%
Private insurance	76.1%
Public insurance	18.9%
No insurance	13.0%
Uninsured under 19	8.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	40,114	92.1%
Spanish	8,492	21.2%
Other Indo-European	5,967	14.9%
Asian & Pacific Islander	1,049	2.6%
Other languages	1,140	2.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	27,832	63.9%
Born in same state	26,806	61.5%
Born in different state	13,709	31.5%
Foreign born	1,026	2.4%
Naturalized citizen	15,725	36.1%
Not a US citizen	7,168	45.6%

Ancestry

Ancestry	Count	%
French	3,974	9.1%
Italian	3,442	7.9%
Arab	1,216	2.8%
English	366	0.8%
German	161	0.4%

Ancestry	Count	%
Irish	136	0.3%
Dutch	132	0.3%
Polish	122	0.3%
Norwegian	109	0.3%

Technology access

Metric	% of households
Computer access	31.5%
Internet access	98.6%

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

Frequently asked questions about ZIP code 20170

What city is ZIP code 20170 in?

ZIP code 20170 is primarily assigned to Herndon, Virginia.

What county is ZIP code 20170 in?

ZIP code 20170 falls within Fairfax County, Virginia.

How educated is the population of ZIP code 20170?

58% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is Spanish widely spoken in ZIP code 20170?

Approximately 21% of households in ZIP code 20170 speak Spanish as a primary language.

What is the median household income in ZIP code 20170?

The median household income in ZIP code 20170 is $151,136, above the national median of ~$75,000.

What is the typical home value in ZIP code 20170?

The median home value in ZIP code 20170 is $599,100.

What timezone is ZIP code 20170 in?

ZIP code 20170 observes the EST timezone.