| Median Sublet: | $1,478 |
| Median Room: | $725 |
| Median Foreclosure: | $550,467 |
| Median For Sale: | $1,299,950 |
| Median Land: | $550,000 |
| Median Rental: | $1,880 |
| Median New Home: | $5,950,000 |
| Population | 22,036 |
| Square Miles | 6.38 |
| Population Density | 3,452.30 |
| Median Age | 44 |
| Median Household Income | $91,904 |
| Per Capita Income | $53,799 |
| Median Rent | $960 |
| Percent Renters | 13% |
| Median Mercer Island, WA Rental Price: | $1,880 |
| Studio Rental Median Price: | $1,355 |
| 1 Bedroom Rental Median Price: | $1,719 |
| 2 Bedroom Rental Median Price: | $2,095 |
| 3 Bedroom Rental Median Price: | $2,600 |
| 4 Bedroom Rental Median Price: | $2,881 |
| Median Mercer Island, WA For Sale Price: | $1,299,950 |
| Studio For Sale Median Price: | $1,800,000 |
| 1 Bedroom For Sale Median Price: | $1,119,555 |
| 2 Bedroom For Sale Median Price: | $337,500 |
| 3 Bedroom For Sale Median Price: | $769,000 |
| 4 Bedroom For Sale Median Price: | $1,415,000 |
| Median Mercer Island, WA Foreclosure Price: | $550,467 |
| 1 Bedroom Foreclosure Median Price: | $109,199 |
| 2 Bedroom Foreclosure Median Price: | $327,608 |
| 3 Bedroom Foreclosure Median Price: | $790,642 |
| 4 Bedroom Foreclosure Median Price: | $667,331 |