What kinds of homes are in Sammamish, WA?

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

Sammamish, WA has 22,610 (±426) homes (2020–2024 American Community Survey).

That is about 1,107 homes per square mile of land.

81.4% are detached single-family houses.

3.4% are in buildings of two to four units.

10.6% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 22,610 (±426)
Detached houses: 81.4%
2–4 unit buildings: 3.4%
5+ unit buildings: 10.6%

Homes in Sammamish by building size

Housing units by units in structure, 2020–2024
Building type	Sammamish	King County	Washington	United States
Single-family, detached	81.4% (±2.0 points)	50.0%	61.9%	61.3%
Single-family, attached (townhouse, rowhouse)	4.1% (±1.4 points)	5.4%	4.4%	6.2%
2 units	0.0% (±0.2 points)	1.6%	2.3%	3.4%
3 or 4 units	3.4% (±1.1 points)	3.8%	3.5%	4.3%
5 to 9 units	2.8% (±0.9 points)	5.7%	4.3%	4.5%
10 to 19 units	4.7% (±1.7 points)	6.7%	4.9%	4.3%
20 or more units	3.1% (±0.9 points)	25.2%	13.0%	10.3%
Mobile home	0.5% (±0.4 points)	1.4%	5.5%	5.6%
Boat, RV, van, etc.	0.0% (±0.2 points)	0.1%	0.3%	0.1%

In Sammamish, the share of homes in buildings of five or more units is lower than in King County (37.6%).

It is also lower than in Washington (22.2%).

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

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

Nearest places with a published estimate, compared with Sammamish
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Sammamish	—	10.6% (±2.1 points)	—
Issaquah	3.5 mi	42.9% (±4.1 points)	Higher
Ames Lake	4.5 mi	0.0% (±14.0 points)	Not measurably different
Bellevue	5.5 mi	42.5% (±2.0 points)	Higher
Fall City	6.0 mi	1.2% (±7.7 points)	Lower
Union Hill-Novelty Hill	6.1 mi	7.3% (±1.6 points)	Lower
Redmond	6.8 mi	46.6% (±2.6 points)	Higher
Carnation	7.3 mi	5.2% (±6.4 points)	Not measurably different
Newcastle	7.4 mi	36.2% (±4.4 points)	Higher

Nearby places with a measurably lower figure: Fall City, WA (1.2%), Union Hill-Novelty Hill, WA (7.3%).

Nearby places with a measurably higher figure: Issaquah, WA (42.9%), Bellevue, WA (42.5%), Redmond, WA (46.6%).

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

Homes in buildings of 5 or more units across King County, place by place

Rank	Place	Homes in buildings of 5 or more units
22	White Center	23.4% (±4.9 points)
23	Fairwood (King County)	23.3% (±4.6 points)
24	Pacific	15.5% (±7.3 points)
25	North Bend	14.9% (±6.7 points)
26	Normandy Park	14.0% (±5.6 points)
27	Lake Forest Park	13.1% (±3.0 points)
28	Sammamish	10.6% (±2.1 points)
29	Covington	9.7% (±2.4 points)
30	Lakeland North	9.2% (±3.7 points)
31	Enumclaw	8.6% (±3.4 points)
32	Maple Valley	8.5% (±2.3 points)
33	Union Hill-Novelty Hill	7.3% (±1.6 points)
34	Snoqualmie	5.3% (±2.1 points)

Showing 13 of 59 places in King County, ranked from highest to lowest.

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 Sammamish

How many homes are in Sammamish?

Sammamish, WA has an estimated 22,610 (±426) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Sammamish houses or apartments?

81.4% are detached houses and 4.1% attached houses, while 14.0% are in buildings of two or more units.

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

3.4% of homes in Sammamish 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 — Sammamish city, Washington

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 Sammamish city, Washington (place:61115, in state:53).

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.