Mercer Island Public RecordsWashington

Mercer Island, located in King County, WA, had a 2020 population of about 25,748. The median age is approximately 46 years. Females make up around 52%, and males 48% of residents. The racial/ethnic breakdown is roughly 65% White, 27% Asian, 1% Black or African American, and 5% Hispanic or Latino. Other races and those identifying with two or more races comprise about 7% of the population.

Mercer Island, King County, WA, boasts a high homeownership rate of around 70%, with the median home value at approximately $2.1 million as of 2024. Rental units account for about 30% of housing, with median rents near $3,200/month. Housing types include luxury single-family homes, waterfront properties, condos, and some apartments. Popular neighborhoods are North End, East Mercer, and Downtown. The real estate market has seen a 4% year-over-year increase in prices. Mercer Island’s property tax rate is roughly 0.87%, leading to average annual property taxes nearing $18,000 per home.

Mercer Island city in King County, WA, boasts excellent education, with 6 public schools including Mercer Island High School, which has a graduation rate of 95% and an average SAT score of 1320. About 77% of adult residents hold a bachelor’s degree or higher. School safety ratings are high, and the district offers advanced placement, STEM, and arts programs. Mercer Island ranks among the top 5% of Washington school districts for academic achievement and provides adult education classes through local community partnerships.

Transportation in Mercer Island, King County, WA, is characterized by high car dependency, with over 70% of residents commuting by car and around 13% using public transit, primarily via I-90 and the Mercer Island Park-and-Ride connecting to Seattle and Bellevue. The average commute time is about 25 minutes. Public transportation options include King County Metro buses and Sound Transit, with light rail service expected soon. Vehicle ownership is high, with roughly 96% of households owning at least one vehicle. Major employment hubs for residents are Seattle and Bellevue, both easily accessible due to the city’s central location.

Mercer Island, located in King County, WA, is primarily served by local clinics such as Mercer Island Primary Care (Virginia Mason) and Swedish Physicians, with the nearest hospitals—Overlake and Swedish Medical Center—located 4–6 miles away in Bellevue. Approximately 96% of residents have health insurance, above the state average. The city’s population skews older, with a median age of 46, influencing common health concerns like hypertension, diabetes, and cardiovascular diseases. Healthcare access is rated high, with about 2.7 physicians per 1,000 residents. The community is predominantly White and Asian, reflecting regional healthcare needs and trends.