Homes for Sale in Mercer Island, WA

85 homes for sale ยท Updated August 12, 2026

Market snapshot for Mercer Island, WA

Median price
$2,698,000
Average price
$4,643,511
Highest price
$28,000,000
Avg price / sqft
$1,090/sqft
Avg home size
3,708 sqft
Avg days on market
70
Avg year built
1984
Avg beds / baths
4.1 bd / 3.9 ba

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