| ZIP Code | 98010 |
|---|---|
| City | Black Diamond |
| State | Washington (WA) |
| County | King County |
| Area Code | 360/564 |
| Elevation | 787 ft |
| Latitude | 47.315643 |
|---|---|
| Longitude | -121.998898 |
| Timezone | Los Angeles (DST) |
| FIPS | 53033 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 38.6 yrs ↓ 9% since 2019 |
|---|---|
| Avg Household Size | 2.62 |
| Below Poverty | 1.5% ▼ 85% below avg |
| College Grads | 65.9% ▲ 70% above avg |
| Unemployment | 1.0% ▼ 80% below avg |
| No HS Diploma | 32 (0.7%) |
| HS Graduate | 441 (10.1%) |
| Some College | 486 (11.1%) |
| Associates | 537 (12.2%) |
| Bachelors | 478 (10.9%) |
| Graduate Degree | 2,414 (55%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $148,692 ▲ 95% above avg ↑ 20% since 2019 |
|---|---|
| Median Home Value | $793,300 ▲ 185% above avg ↑ 79% since 2019 |
| Home/Income Ratio | 5.3x (nat avg ~3.5x) |
| Median Rent | $2,304/mo |
| Total Units | 2,540 |
| Vacant Units | 115 |
| Avg HH Size | 2.62 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 2,540 |
|---|---|
| Vacant | 115 |
| Owner Occupied | 87.6% |
| Renter Occupied | 12.4% |
| Avg HH Size | 2.62 |
ZIP code 98010 is located in Black Diamond, Washington, within King County. With a population of 6,351, this is a lightly populated ZIP code with a middle-aged community — the median age is 38.6 years. Economically, 98010 is a upper-middle-income ZIP code: the median household income of $148,692 is significantly above the national average.
Real estate in ZIP code 98010 represents a premium housing market. The median home value of $793,300 is more than double the national average. Renters can expect to pay around $2,304 per month in median rent. Homeownership is strong here — 87.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 79% since 2019.
The population of 98010 is primarily White (74.35%). Residents are highly educated — 65.9% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 1.5%. Household income has grown by 20% since 2019.
The unemployment rate in 98010 stands at 1.0%, which is well below the national average. About 22% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 69%.
Overall, ZIP code 98010 in Black Diamond, WA is characterized as upper-middle-income, highly educated, a middle-aged community, and predominantly owner-occupied. With 6,351 residents, a median household income of $148,692, and a median home value of $793,300, it offers a clear picture of life in this part of Washington.