Black Diamond, WA ZIP Codes
One ZIP code serves Black Diamond, Washington: 98010. Together they are home to 6,857 residents in 2,649 households.
Black Diamond city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 5,961 |
| Households | 2,316 |
| Median household income | $141,383 |
| Median home value | $779,100 |
| Median age | 38.1 |
| Median rent | $1,453 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 6,857 |
| Households (sum of ZIP codes) | 2,649 |
| Median household income, range across ZIP codes | $142,048 (98010) to $142,048 (98010) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $142,048 |
| Homeowners | 85.7% |
| Households with kids under 18 | 36.6% |
| Moved in the past year | 12.8% |
| Carrier routes in EDDM2GO's route library | 5 routes, 3,560 homes (1 of 1 ZIP codes) |
Every ZIP code in Black Diamond
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98010 | Black Diamond | 6,857 | 2,649 | $142,048 | $775,400 | 85.7% | 36.6% | 12.8% | 5 | 3,647 | 43% of its land; mailing city |
A ZIP code is listed for Black Diamond when at least 10% of its land lies inside Black Diamond city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Black Diamond. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Black Diamond.
Counties
- King County — 88 ZIP codes
Price a mailing to Black Diamond ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Black Diamond, WA?
- 98010. A ZIP code is listed for Black Diamond when at least 10% of its land lies inside Black Diamond city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Black Diamond.
- What is the population of Black Diamond, WA?
- The Census Bureau counts 5,961 residents inside Black Diamond city limits (ACS 2020–2024). The 1 ZIP code that serve Black Diamond hold 6,857 residents in all.
- What is the median household income in Black Diamond, WA?
- $141,383 inside Black Diamond city limits, per the Census Bureau. Across its ZIP codes the medians run from $142,048 to $142,048.
- How many carrier routes and mailboxes are in Black Diamond, WA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 5 carrier routes reaching 3,560 residential and 89 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.