How old are the homes in Alderwood Manor, WA?

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

37.2% (±6.4 points) of the homes in Alderwood Manor, WA were built before 1980 (2020–2024 American Community Survey).

2.2% were built before 1940.

15.2% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 37.2% (±6.4 points)
Built before 1940: 2.2%
Built 2010 or later: 15.2%

When the homes in Alderwood Manor were built

Housing units by year structure built, 2020–2024
Year built	Alderwood Manor	Snohomish County	Washington	United States
2020 or later	1.3% (±1.2 points)	2.6%	2.3%	2.0%
2010 to 2019	13.9% (±5.1 points)	12.2%	12.1%	9.4%
2000 to 2009	18.6% (±5.0 points)	17.6%	15.1%	13.6%
1990 to 1999	11.6% (±4.5 points)	18.0%	14.8%	12.4%
1980 to 1989	17.6% (±3.7 points)	15.0%	12.4%	12.9%
1970 to 1979	8.6% (±2.4 points)	13.1%	14.2%	14.2%
1960 to 1969	20.6% (±5.1 points)	9.8%	8.7%	9.9%
1950 to 1959	5.2% (±2.5 points)	5.0%	6.7%	9.5%
1940 to 1949	0.6% (±0.5 points)	1.9%	4.2%	4.4%
1939 or earlier	2.2% (±1.5 points)	4.9%	9.6%	11.7%

In Alderwood Manor, the share of homes built before 1980 is not measurably different from Snohomish County (34.7%).

It is not measurably different from Washington (43.4%).

It is lower than the national figure (49.7%).

In Snohomish County, Alderwood Manor ranks 18 of 55 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 298 of 472.

Rankings use the estimates alone; where margins of error overlap, neighboring ranks may not truly differ.

Why the age of a home matters: lead-based paint

Federal law treats housing built before 1978 as likely to contain lead-based paint.

Before a lease or sale of most pre-1978 housing, the landlord or seller must disclose any known lead-based paint and hazards and give the tenant or buyer the EPA pamphlet (42 U.S.C. § 4852d; 40 CFR part 745, subpart F; 24 CFR part 35, subpart A).

A contractor paid to renovate, repair or paint a pre-1978 home must be a certified firm, use a certified renovator and follow lead-safe work practices under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E) whenever the job disturbs more than 6 square feet of painted surface in a room or more than 20 square feet outside; window replacement and demolition always count (40 CFR 745.83).

Certification comes from EPA, or from the state where EPA has authorized the state to run the program.

The Census Bureau groups construction by decade, so the share built before 1978 lies between the share built before 1970 (28.6%) and the share built before 1980 (37.2%).

Homes built before 1980 in places near Alderwood Manor

Nearest places with a published estimate, compared with Alderwood Manor
Place	Distance	Homes built before 1980	Compared with this place
Alderwood Manor	—	37.2% (±6.4 points)	—
Bothell West	1.4 mi	25.3% (±4.4 points)	Lower
Brier	1.6 mi	29.9% (±6.3 points)	Not measurably different
Lynnwood	1.8 mi	52.6% (±4.4 points)	Higher
Larch Way	2.1 mi	12.4% (±6.3 points)	Lower
Mountlake Terrace	2.2 mi	60.5% (±5.0 points)	Higher
Martha Lake	2.6 mi	25.4% (±4.6 points)	Lower
North Lynnwood	2.7 mi	15.5% (±3.7 points)	Lower
Bothell East	3.9 mi	8.7% (±2.7 points)	Lower

Nearby places with a measurably lower figure: Bothell West, WA (25.3%), Larch Way, WA (12.4%), Martha Lake, WA (25.4%).

Nearby places with a measurably higher figure: Lynnwood, WA (52.6%), Mountlake Terrace, WA (60.5%).

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

Homes built before 1980 across Snohomish County, place by place

Rank	Place	Homes built before 1980
12	Everett	48.1% (±2.7 points)
13	Machias	46.2% (±26.3 points)
14	Meadowdale	44.6% (±10.2 points)
15	Woodway	43.0% (±8.7 points)
16	Bunk Foss	41.5% (±11.2 points)
17	Maltby	38.5% (±6.5 points)
18	Alderwood Manor	37.2% (±6.4 points)
19	Clearview	37.1% (±14.4 points)
20	Monroe North	36.5% (±22.3 points)
21	Warm Beach	35.2% (±9.5 points)
22	Lake Cassidy	34.5% (±11.1 points)
23	Sunday Lake	32.9% (±22.4 points)
24	Bryant	32.4% (±16.4 points)

Showing 13 of 55 places in Snohomish County, ranked from highest to lowest.

Alderwood Manor 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 Alderwood Manor

How old are most homes in Alderwood Manor?

37.2% of homes in Alderwood Manor, WA were built before 1980 (2020–2024 American Community Survey).

Do homes in Alderwood Manor need a lead paint disclosure?

A home built before 1978 does, before it is rented or sold, unless an exemption applies (42 U.S.C. § 4852d); between 28.6% and 37.2% of homes in Alderwood Manor were built before then.

Does a contractor need lead certification to work on older homes in Alderwood Manor?

Yes, when the job disturbs more than 6 square feet of paint in a room or 20 square feet outside, or replaces a window: the firm must be certified and a certified renovator must direct the work under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E).

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Alderwood Manor 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 Alderwood Manor CDP, Washington (place:01185, 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_0017PE, DP04_0017PM, DP04_0018PE, DP04_0018PM, DP04_0019PE, DP04_0019PM, DP04_0020PE, DP04_0020PM, DP04_0021PE, DP04_0021PM, DP04_0022PE, DP04_0022PM, DP04_0023PE, DP04_0023PM, DP04_0024PE, DP04_0024PM, DP04_0025PE, DP04_0025PM, DP04_0026PE, DP04_0026PM

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.