Cost of living in Mercer Island, WA

Mercer Island is a Census city in King County, WA. ACS 2024 5-year population is 25,307. Median gross rent is $2,502 (ACS 2024 5-year, this place). Median home value is $2,000,001. Median household income is $219,069. Insurance is the NAIC state average; food is a USDA plan — no town indexes.