How many bedrooms do homes in Black Diamond, WA have?

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

In Black Diamond, WA, 2.8% of homes are studios or one-bedrooms and 81.0% have three or more bedrooms (2020–2024 American Community Survey).

The most common size is 3 bedrooms, 42.1% of homes.

Figures last updated on November 12, 2026.

Studio or 1 bedroom: 2.8%
3 or more bedrooms: 81.0% (±10.7 points)
Most common: 3 bedrooms

Homes in Black Diamond by bedroom count

Housing units by bedrooms, 2020–2024
Bedrooms	Black Diamond	King County	Washington	United States
No bedroom (studio)	0.0% (±1.6 points)	8.2%	4.5%	2.9%
1 bedroom	2.8% (±3.3 points)	17.6%	11.8%	10.9%
2 bedrooms	16.1% (±6.3 points)	24.0%	24.3%	25.0%
3 bedrooms	42.1% (±7.8 points)	26.1%	36.2%	38.7%
4 bedrooms	27.6% (±5.3 points)	18.1%	18.0%	17.5%
5 or more bedrooms	11.3% (±5.0 points)	6.0%	5.2%	4.9%

In Black Diamond, the share of homes with three or more bedrooms is higher than in King County (50.2%).

It is also higher than in Washington (59.4%).

It is higher than the national figure (61.1%).

Homes with 3 or more bedrooms in places near Black Diamond

Nearest places with a published estimate, compared with Black Diamond
Place	Distance	Homes with 3 or more bedrooms	Compared with this place
Black Diamond	—	81.0% (±10.7 points)	—
Maple Valley	3.7 mi	84.3% (±5.6 points)	Not measurably different
Lake Morton-Berrydale	4.2 mi	85.6% (±7.7 points)	Not measurably different
Lake Holm	5.3 mi	94.8% (±14.5 points)	Not measurably different
Covington	5.3 mi	87.2% (±7.2 points)	Not measurably different
Hobart	6.7 mi	85.5% (±9.8 points)	Not measurably different
Shadow Lake	6.9 mi	82.6% (±16.2 points)	Not measurably different
Enumclaw	7.9 mi	65.4% (±7.0 points)	Lower
Auburn	9.0 mi	56.9% (±2.5 points)	Lower

Nearby places with a measurably lower figure: Enumclaw, WA (65.4%), Auburn, WA (56.9%).

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

Homes with 3 or more bedrooms across King County, place by place

Rank	Place	Homes with 3 or more bedrooms
20	Maple Valley	84.3% (±5.6 points)
21 (tie)	Hunts Point	82.6% (±18.1 points)
21 (tie)	Shadow Lake	82.6% (±16.2 points)
23	Normandy Park	82.0% (±11.1 points)
24 (tie)	Carnation	81.9% (±11.2 points)
24 (tie)	Fall City	81.9% (±12.7 points)
26	Black Diamond	81.0% (±10.7 points)
27	Lakeland North	80.0% (±9.0 points)
28	Lakeland South	79.7% (±7.5 points)
29	Algona	76.9% (±14.8 points)
30	Lake Forest Park	74.5% (±5.8 points)
31	North Bend	74.1% (±9.4 points)
32	Fairwood (King County)	72.7% (±6.2 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 Black Diamond

What is the most common home size in Black Diamond?

The most common size is 3 bedrooms, 42.1% of homes in Black Diamond, WA.

How many studios and one-bedroom homes are in Black Diamond?

2.8% of homes in Black Diamond have one bedroom or none.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Black Diamond 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 Black Diamond city, Washington (place:06330, 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_0039PE, DP04_0039PM, DP04_0040PE, DP04_0040PM, DP04_0041PE, DP04_0041PM, DP04_0042PE, DP04_0042PM, DP04_0043PE, DP04_0043PM, DP04_0044PE, DP04_0044PM

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.