Black Diamond, WA—98010
Real Estate Data & Market Trends
Key Metrics at a Glance
Home Price Trends — Black Diamond, WA
As of Oct '25, the median home price in Black Diamond, WA is $790,000, with a year-over-year change of 0.2%. This indicates that home prices in Black Diamond, WA are flat. According to Zillow, the 1-year price projection is -0.1%, suggesting a relatively flat housing market in the next year.
Cost per Home Type
| Home Type | Median Home Value | YoY % Change |
|---|---|---|
All Homes | $790,000 | 0.2% |
| Single Family | $792,000 | -0.3% |
| Condos | N/A | N/A |
Cost per Home Size
| Home Size | Median Home Value | YoY % Change |
|---|---|---|
1 Bed | N/A | N/A |
2 Bed | $712,000 | 0.3% |
3 Bed | $684,000 | -0.4% |
4 Bed | $846,000 | -0.8% |
| 5 Bed | $954,000 | -0.6% |
% of Housing Stock
Rental Trends — Black Diamond, WA
As of July '25, Rentcast reports the average rent in Black Diamond, WA is $3,280, with a year-over-year rent change of 2.5%. Per bedroom, the median rent as of July '25 in Black Diamond, WA is 1-bedrooms: $2,130, 2-bedrooms: $1,950, 3-bedrooms: $3,350, 4-bedrooms: $3,490. The most common rental property sizes in Black Diamond, WA are 3-bedroom and 2-bedroom, accounting for 36.2% and 28.9% of the rental stock.
| Type | Median Rent | Average Rent |
|---|---|---|
| Average Rent | $3,400 | $3,280 |
| Studio Rent | N/A | N/A |
| 1 Bed Rent | $2,130 | $2,130 |
| 2 Bed Rent | $1,900 | $1,950 |
| 3 Bed Rent | $3,350 | $3,350 |
| 4 Bed Rent | $3,520 | $3,490 |
% of Rental Stock
Property Listings — Black Diamond, WA
As of Oct '25, Realtor.com reports that the median days on market for a home in Black Diamond, WA is 67. This is a decrease of -23.0% from last year, suggesting that homes are sitting on the market shorter than last year. The percentage of listed homes with a reduced price is 17.0%, representing a small inventory and little supply pressure on home prices.
| Metric | Zip Code Average | Year over Year % Change |
|---|---|---|
Median Listing Price | $778,000 | 2.0% |
Listing Count | 96 | 19.0% |
| Listings as % of Homes | 0.8% | 19.0% |
Days on Market | 67 | -23.0% |
Demographics — Black Diamond, WA
As of the latest ACS Survey released in 2023, Black Diamond, WA has a population of 6,350, which has increased by 15.8% over the past 5 years. Black Diamond, WA is a moderately popular place for families, as children make up 23.9% of the population. The area has a highly educated workforce, with 55.5% of adult residents holding a bachelor’s degree or higher. There are some residents working remotely, with 22.2% reporting working from home.
| Metric | Latest Census | YoY % Change |
|---|---|---|
Population | 6,350 | 15.8% |
% Under 18 | 23.9% | 7.7% |
% Seniors | 11.8% | -6.3% |
% WFH | 22.2% | 164.3% |
% w/ College Degree | 55.5% | 41.2% |
As of the latest ACS Survey released in 2023, Black Diamond, WA is a predominantly white area, with 74.4% of the population identifying as white. The white population has shrunk by 13.0% in the last 5 years. The second most common race or ethnicity in Black Diamond, WA is asian, making up 10.2% of the population. Foreign-born residents account for 14.2% of the population in Black Diamond, WA, and this percentage has increased by 57.8% as of the ACS Survey 5 years prior, suggesting more immigrants are calling the area home.
Race and Ethnicity
| Metric | Latest Census | 5-Year % Change |
|---|---|---|
% White | 74.4% | -13.0% |
% Black | 0.3% | -66.7% |
% Hispanic | 9.0% | 1.1% |
% Asian | 10.2% | 325.0% |
% Foreign Born | 14.2% | 57.8% |
Mortgage and Risk — Black Diamond, WA
According to HUD data as of 2023, there were 345 mortgage originations in Black Diamond, WA, of which 90.0% of loans were conventional mortgages. The average loan-to-value was 51.0%, with 15.0% above 90% LTV (elevated). This implies medium mortgage risk in Black Diamond, WA. Investor activity is low, as 1.0% of loans were by investors. 3.0% of loans were cash-out refinances, suggesting few homeowners are tapping equity.
Mortgages
| Metric | Zip Code Average |
|---|---|
Total Loan Originations | 345 |
% Conventional Loans | 90.0% |
% Government Loans | 10.0% |
% Investor Loans | 1.0% |
% Second Loans | 0.0% |
% Cash Out Refinance | 3.0% |
Loan Activity
Rentals and Section 8 — Black Diamond, WA
As of 2024, the percent of homes in Black Diamond, WA under the Section 8 program is 0.7%. This is considered low, suggesting that the neighborhood is sparsely composed of Section 8 homes. Section 8 opportunity is good when HUD pays more than market rent. In Black Diamond, WA, all tracked home sizes have HUD payment amounts above market rent, suggesting strong Section 8 opportunity across the board.
Section 8 Market Size
Total Units under HUD | 1 |
Total Units Section 8 | 1 |
% Rentals under Section 8 | 0.7% |
% Occupied Section 8 | N/A |
Section 8 Opportunity
| Home Size | HUD Premium | Market Rent | Max HUD Rent |
|---|---|---|---|
| 1 Bedroom | $220 | $2,130 | $2,350 |
| 2 Bedroom | $840 | $1,900 | $2,740 |
| 3 Bedroom | $260 | $3,350 | $3,610 |
| 4 Bedroom | $690 | $3,520 | $4,210 |
Affordability — Black Diamond, WA
Home Price to Income Ratio
| Metric | Zip Code Average |
|---|---|
| Home Price to Income Ratio | 4.9 |
| Median Home Price | $790,000 |
| Median Household Income | $149,000 |