The typical owner-occupied home in Black Diamond is worth about $779,100, 38% above the Washington median of $564,600 and 2.3 times the national median of $332,700. Owners pay a median $5,753 a year in property taxes, about 0.74% of their home's value, lower than the Washington rate of 0.81%. The median household earns $141,383 a year, so the median home costs 5.5 times the median income (5.8 times for Washington). 86% of occupied homes here are lived in by their owners, and 82% of those owners still have a mortgage.
Black Diamond at a glance
| Black Diamond | Washington | U.S. | |
|---|---|---|---|
| Median home value | $779,100 | $564,600 | $332,700 |
| Median property tax paid per year | $5,753 | $4,556 | $3,119 |
| Property tax as a share of value | 0.74% | 0.81% | 0.94% |
| Median household income | $141,383 | $98,141 | $80,734 |
| Homes lived in by their owners | 86% | 64% | 65% |
| Owner homes with a mortgage | 82% | 66% | 61% |
| Median monthly costs, owners with a mortgage | $3,068 | $2,445 | $1,963 |
| Those costs as a share of the owners' income | 23.9% | 22.2% | 21.0% |
| Median rent | $1,453 | $1,760 | $1,413 |
| Rent as a share of renters' income | 21.0% | 30.0% | 30.6% |
| Median year homes were built | 2000 | 1985 | 1980 |
| Vacant homes | 5.2% | 7.3% | 10.1% |
| Population | 5,961 | 7,816,116 | 334,922,499 |
What a typical home costs per month in Black Diamond
At this week's average 30-year rate of 7.11%, buying the median Black Diamond home of $779,100 with 20% down costs about $4,998 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $6,421, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $214,196 for the 20%-down payment. That payment is 42% of the median Black Diamond household income of $141,383; at that income and 20% down, the 28% guideline points to a home of about $514,000.
The median rent here is $1,453 a month, so owning the median home costs about $3,545 a month more than renting, before you count the equity you build and any tax benefits.
| Down payment | $155,820 |
|---|---|
| Loan amount | $623,280 |
| Principal and interest | $4,193 |
| Property taxes (0.74% a year) | $480 |
| Homeowners insurance (our estimate, 0.5% a year) | $325 |
| PMI | $0 |
| Total per month | $4,998 |
Change the numbers in the calculator
| Down payment | $27,268 |
|---|---|
| Loan amount | $764,989 |
| Principal and interest | $5,146 |
| Property taxes (0.74% a year) | $480 |
| Homeowners insurance (our estimate, 0.5% a year) | $325 |
| FHA mortgage insurance | $470 |
| Total per month | $6,421 |
Change the numbers in the calculator
Questions about home buying in Black Diamond
What is the median home value in Black Diamond?
About $779,100 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Black Diamond?
Homeowners pay a median $5,753 a year, which is about 0.74% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in Black Diamond?
For the median home with 20% down at 7.11%, the payment is about $4,998 a month. Keeping that under 28% of gross income takes about $214,196 a year.
More about Black Diamond
- Mortgage Refinance in Black Diamond
- Debt Relief in Black Diamond
- Home Equity Loans in Black Diamond
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data