What kinds of homes are in Sudden Valley, WA?

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

Sudden Valley, WA has 2,985 (±371) homes (2020–2024 American Community Survey).

That is about 698 homes per square mile of land.

89.5% are detached single-family houses.

5.1% are in buildings of two to four units.

2.7% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 2,985 (±371)
Detached houses: 89.5%
2–4 unit buildings: 5.1%
5+ unit buildings: 2.7%

Homes in Sudden Valley by building size

Housing units by units in structure, 2020–2024
Building type	Sudden Valley	Whatcom County	Washington	United States
Single-family, detached	89.5% (±3.7 points)	62.8%	61.9%	61.3%
Single-family, attached (townhouse, rowhouse)	2.7% (±2.0 points)	3.5%	4.4%	6.2%
2 units	0.0% (±1.3 points)	2.6%	2.3%	3.4%
3 or 4 units	5.1% (±2.4 points)	4.4%	3.5%	4.3%
5 to 9 units	0.0% (±1.3 points)	4.1%	4.3%	4.5%
10 to 19 units	2.2% (±2.5 points)	5.8%	4.9%	4.3%
20 or more units	0.5% (±0.8 points)	10.2%	13.0%	10.3%
Mobile home	0.0% (±1.3 points)	6.3%	5.5%	5.6%
Boat, RV, van, etc.	0.0% (±1.3 points)	0.2%	0.3%	0.1%

In Sudden Valley, the share of homes in buildings of five or more units is lower than in Whatcom County (20.1%).

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 Sudden Valley

Nearest places with a published estimate, compared with Sudden Valley
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Sudden Valley	—	2.7% (±2.9 points)	—
Geneva	3.1 mi	1.1% (±5.7 points)	Not measurably different
Bellingham	6.1 mi	38.7% (±1.9 points)	Higher
Marietta-Alderwood	11 mi	29.9% (±9.9 points)	Higher
Everson	13 mi	5.2% (±8.0 points)	Not measurably different
Nooksack	14 mi	0.0% (±10.6 points)	Not measurably different
Ferndale	14 mi	17.1% (±6.4 points)	Higher
Sedro-Woolley	15 mi	11.1% (±3.3 points)	Higher
Lynden	16 mi	12.9% (±3.6 points)	Higher

Nearby places with a measurably higher figure: Bellingham, WA (38.7%), Marietta-Alderwood, WA (29.9%), Ferndale, WA (17.1%).

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 Whatcom County, place by place

Rank	Place	Homes in buildings of 5 or more units
4	Lynden	12.9% (±3.6 points)
5	Blaine	9.1% (±4.1 points)
6	Birch Bay	7.8% (±4.1 points)
7	Sumas	7.2% (±4.3 points)
8	Peaceful Valley	5.7% (±8.1 points)
9	Everson	5.2% (±8.0 points)
10	Sudden Valley	2.7% (±2.9 points)
11	Point Roberts	1.9% (±2.0 points)
12	Geneva	1.1% (±5.7 points)
13	Nooksack	0.0% (±10.6 points)

Showing 10 of 13 places in Whatcom County, ranked from highest to lowest.

Sudden Valley is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

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 Sudden Valley

How many homes are in Sudden Valley?

Sudden Valley, WA has an estimated 2,985 (±371) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Sudden Valley houses or apartments?

89.5% are detached houses and 2.7% attached houses, while 7.8% are in buildings of two or more units.

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

5.1% of homes in Sudden Valley 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 — Sudden Valley CDP, 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 Sudden Valley CDP, Washington (place:68200, 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.