In June 2020, there were four homes sold, with a median sale price of $335,000 - a 34.8% decrease over the $513,750 median sale price for the same period of the previous year. There were six homes sold in Black Diamond in June 2019.
The median sales tax in Black Diamond for the most recent year with available data, 2016, was $3,492, approximately 1% of the median home sale price for June 2020.
The following table compares Black Diamond to other King County cities with similar median sale prices in June 2020:
| City | June 2020 Home Sales | June 2019 Home Sales | % change (Total Home Sales) | June 2020 Median Sales Price | June 2019 Median Sales Price | % change (Median Sales Price) |
|---|---|---|---|---|---|---|
| Kent | 27 | 35 | -22.9% | $445,000 | $399,950 | 11.3% |
| Auburn | 37 | 51 | -27.5% | $444,000 | $391,900 | 13.3% |
| Auburn (unincorporated) | 20 | 16 | 25% | $426,750 | $507,500 | -15.9% |
| South Federal Way (unincorporated) | 3 | 8 | -62.5% | $420,000 | $391,500 | 7.3% |
| Enumclaw | 13 | 19 | -31.6% | $415,000 | $360,000 | 15.3% |
| Seatac | 7 | 7 | 0% | $380,000 | $433,000 | -12.2% |
| Algona | 1 | 2 | -50% | $370,000 | $356,500 | 3.8% |
| Pacific | 4 | 4 | 0% | $362,500 | $418,750 | -13.4% |
| Black Diamond | 4 | 6 | -33.3% | $335,000 | $513,750 | -34.8% |
| Skykomish (unincorporated) | 1 | 0 | - | $321,500 | $0 | - |
| Milton | 1 | 1 | 0% | $163,000 | $450,000 | -63.8% |
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