City

Black Diamond, WA

1 ZIP code  ·  King County  ·  Washington

👥6,351Population
💰$148,692Median HH Income▲ 95% above avg
🎂38.6Median Age
🏠$793,300Median Home Value▲ 185% above avg
🎓65.9%College Grads▲ 70% above avg
📊1.0%Unemployment▼ 80% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 52.6% Female 47.4% ♀

Race & Ethnicity

White: 74.4%Hispanic: 9%Black: 0.3%Asian: 10.2%Other: 5.5%Race
White74.4%
Hispanic9.0%
Black0.3%
Asian10.2%
Other5.5%

Age Breakdown

Under 5
6%
5–17
18%
18–24
5%
25–44
32%
45–64
27%
65+
5%

Key Indicators

Median Age38.6 yrs
Avg HH Size2.62
Below Poverty1.5% ▼ 85% below avg
College Grads65.9% ▲ 70% above avg
Unemployment1.0% ▼ 80% below avg
No HS Diploma32 (0.7%)
HS Graduate441 (10.1%)
Some College486 (11.1%)
Associates537 (12.2%)
Bachelors478 (10.9%)
Graduate Degree2,414 (55%)

Education

No HS: 0.7%HS Grad: 10.1%Some College: 11.1%Associates: 12.2%Bachelors: 10.9%Graduate: 55%Edu
No HS0.7%
HS Grad10.1%
Some College11.1%
Associates12.2%
Bachelors10.9%
Graduate55.0%
Housing & Income

Housing Tenure

Owner: 87.6%Renter: 12.4%Tenure
Owner87.6%
Renter12.4%

Home Value Distribution

$100k–$150k
0%
$200k–$300k
2%
$300k–$500k
12%
Over $500k
85%

Financials

Median HH Income$148,692 ▲ 95% above avg
Median Home Value$793,300 ▲ 185% above avg
Home/Income Ratio5.3x (nat avg ~3.5x)
Median Rent$2,304/mo
Total Housing Units2,540
Vacant Units115

Income Distribution

Under $25k
2%
$25k–$50k
4%
$50k–$75k
6%
$75k–$100k
9%
$100k–$150k
30%
$150k–$200k
16%
Over $200k
35%
Employment & Commute

How People Get to Work

Drove Alone
74%
Public Transit
0%
Walked
1%
Work From Home
24%

Commute Time

Under 15 min
12%
15–30 min
26%
30–45 min
29%
Over 45 min
33%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
3%
1960s–1970s
6%
1980s–1990s
22%
2000+
68%
About Black Diamond, WA

Black Diamond is a city in Washington, located in King County. The city spans 1 ZIP code and is home to approximately 6,351 residents. It is a middle-aged city, with a median age of 38.6 years.

Economically, Black Diamond is a upper-middle-income community. The median household income of $148,692 is significantly above the national average. Approximately 1.5% of residents live below the poverty line. The unemployment rate is 1.0%, well below the national average.

The real estate market in Black Diamond is a premium housing market. Median home values stand at $793,300, which is more than double the national average. Renters typically pay around $2,304 per month. Homeownership is high at 87.6%, typical of suburban and family-oriented communities.

The population of Black Diamond is highly educated. 65.9% of adults hold a bachelor's degree or higher — significantly above the national average. The community is primarily White (74.35%).

Black Diamond, WA offers residents above-average earning potential within Washington.

ZIP Codes in Black Diamond
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
98010 6,351 $148,692 $793,300 $2,304 1.0% 65.9% 87.6%