What kinds of homes are in Fairfax, VA?

Name: Types of homes in Fairfax, VA, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Fairfax, VA has 9,313 (±23) homes (2020–2024 American Community Survey).

That is about 1,492 homes per square mile of land.

54.3% are detached single-family houses.

2.3% are in buildings of two to four units.

26.4% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 9,313 (±23)
Detached houses: 54.3%
2–4 unit buildings: 2.3%
5+ unit buildings: 26.4%

Homes in Fairfax by building size

Housing units by units in structure, 2020–2024
Building type	Fairfax	Fairfax city	Virginia	United States
Single-family, detached	54.3% (±3.1 points)	54.3%	61.3%	61.3%
Single-family, attached (townhouse, rowhouse)	17.0% (±2.2 points)	17.0%	11.3%	6.2%
2 units	0.8% (±0.6 points)	0.8%	1.6%	3.4%
3 or 4 units	1.5% (±1.0 points)	1.5%	2.9%	4.3%
5 to 9 units	2.6% (±1.2 points)	2.6%	4.4%	4.5%
10 to 19 units	14.4% (±2.5 points)	14.4%	5.2%	4.3%
20 or more units	9.4% (±2.1 points)	9.4%	8.9%	10.3%
Mobile home	0.0% (±0.4 points)	0.0%	4.3%	5.6%
Boat, RV, van, etc.	0.0% (±0.4 points)	0.0%	0.0%	0.1%

In Fairfax, the share of homes in buildings of five or more units is not measurably different from Fairfax city (26.4%).

It is also higher than in Virginia (18.5%).

It is higher than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Fairfax

Nearest places with a published estimate, compared with Fairfax
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Fairfax	—	26.4% (±3.5 points)	—
George Mason	1.5 mi	1.1% (±2.4 points)	Lower
Long Branch	2.2 mi	9.1% (±4.3 points)	Lower
Mantua	2.2 mi	19.9% (±6.5 points)	Not measurably different
Oakton	2.5 mi	35.4% (±3.8 points)	Higher
Kings Park West	2.7 mi	0.2% (±1.3 points)	Lower
Fair Oaks	3.2 mi	58.8% (±4.8 points)	Higher
Braddock	3.4 mi	13.9% (±8.4 points)	Lower
Merrifield	3.4 mi	62.4% (±4.9 points)	Higher

Nearby places with a measurably lower figure: George Mason, VA (1.1%), Long Branch, VA (9.1%), Kings Park West, VA (0.2%).

Nearby places with a measurably higher figure: Oakton, VA (35.4%), Fair Oaks, VA (58.8%), Merrifield, VA (62.4%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Fairfax

How many homes are in Fairfax?

Fairfax, VA has an estimated 9,313 (±23) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Fairfax houses or apartments?

54.3% are detached houses and 17.0% attached houses, while 28.7% are in buildings of two or more units.

How many two-family and small multifamily homes are in Fairfax?

2.3% of homes in Fairfax are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Fairfax city, Virginia

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Fairfax city, Virginia (place:26496, in state:51).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.