ZIP Code 20171

ZIP Code Tabulation Area in Fairfax County, Virginia.

Population: 50,796
Median household income: $166,154
Median home value: $770,200

Covering part of Fairfax County, Virginia, ZIP Code 20171 has about 50,796 residents. Its median household income of $166,154 runs above the Fairfax County figure of $150,113.

From 2019 to 2023, ZIP Code 20171's population held roughly steady from 51,093 to 50,796, while its median gross rent rose 17.3% from $1,940 to $2,276.

Owners occupy 56.2% of the area's occupied homes. The median resident is 35.8 years old.

Demographics

ACS 2019–2023

Population: 50,796
Median age: 35.8 yrs
Median household income: $166,154
Median home value: $770,200
Median gross rent: $2,276
Housing units: 19,221
Homeownership rate: 56.2%
Bachelor's degree or higher: 73.8%
Unemployment rate: 2.8%

Trends

ACS 5-year · 2019–2023

Population

51,09350,796

Median household income

$144,425$166,154

Median home value

$627,800$770,200

Median gross rent

$1,940$2,276

Year	Population	Median household income	Median home value	Median gross rent
2019	51,093	$144,425	$627,800	$1,940
2020	50,511	$149,393	$636,300	$1,919
2021	50,005	$150,066	$650,900	$2,025
2022	51,081	$155,357	$731,500	$2,205
2023	50,796	$166,154	$770,200	$2,276

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.5%

5 to 1718.3%

18 to 248.1%

25 to 3416.3%

35 to 4417.0%

45 to 5413.7%

55 to 6411.2%

65 to 746.3%

75 and over3.6%

	Count	Share
Under 5	2,804	5.5%
5 to 17	9,279	18.3%
18 to 24	4,119	8.1%
25 to 34	8,301	16.3%
35 to 44	8,636	17.0%
45 to 54	6,944	13.7%
55 to 64	5,685	11.2%
65 to 74	3,182	6.3%
75 and over	1,846	3.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	22,288	43.9%
Black or African American	4,575	9.0%
American Indian & Alaska Native	12	0.0%
Asian	16,943	33.4%
Native Hawaiian & Pacific Islander	143	0.3%
Some other race	238	0.5%
Two or more races	2,360	4.6%
Hispanic or Latino (any race)	4,237	8.3%

Educational attainment (age 25+)

No high school diploma3.0%

High school graduate8.6%

Some college or associate's14.6%

Bachelor's degree36.1%

Graduate or professional degree37.7%

	Count	Share
No high school diploma	1,051	3.0%
High school graduate	2,972	8.6%
Some college or associate's	5,048	14.6%
Bachelor's degree	12,491	36.1%
Graduate or professional degree	13,032	37.7%

Commute to work

Mean travel time to work: 27 min

Drove alone53.8%

Carpooled6.1%

Public transit5.4%

Walked0.8%

Bicycle0.2%

Worked from home31.6%

Other means2.0%

How workers get to work

	Count	Share
Drove alone	15,673	53.8%
Carpooled	1,782	6.1%
Public transit	1,571	5.4%
Walked	238	0.8%
Bicycle	71	0.2%
Worked from home	9,221	31.6%
Other means	581	2.0%

Travel time

	Count	Share
Under 15 min	4,881	24.5%
15 to 29 min	7,637	38.3%
30 to 44 min	3,813	19.1%
45 to 59 min	1,642	8.2%
60+ min	1,943	9.8%

Households

Average household size: 2.72
Poverty rate: 3.7% (1,850 of 50,675)

	Count	Share
Family households	13,205	70.9%
Nonfamily households	5,429	29.1%

Housing

Median year structure built: 1996

Occupancy

	Count	Share
Occupied	18,634	96.9%
Vacant	587	3.1%

Tenure (of occupied units)

	Count	Share
Owner-occupied	10,465	56.2%
Renter-occupied	8,169	43.8%

1-unit, detached42.1%

1-unit, attached18.7%

2 to 4 units3.7%

5 to 19 units12.5%

20 or more units23.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	8,096	42.1%
1-unit, attached	3,590	18.7%
2 to 4 units	702	3.7%
5 to 19 units	2,399	12.5%
20 or more units	4,425	23.0%
Mobile home & other	9	0.0%

ZIP Code 20171

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes