Mercer Island Washington Map

About Mercer Island, Washington

Mercer Island is a locality in King County, Washington, United States. It has a population of 25,307. The population density is 1529.4 people per km². Mercer Island is located at 47.5707°N, 122.2221°W. It observes the Pacific Time (America/Los_Angeles) timezone. ZIP code: 98040.

Mercer Island rises from the deep, cool waters of Lake Washington, a verdant presence between the urban sprawls of Seattle and Bellevue. It lies 2.9 miles south-south-west of Bellevue, WA (from Bellevue, WA: bearing 200°T), and is situated 5.7 miles east-south-east of Seattle. Its undulating terrain, cloaked in Douglas fir and Western red cedar, slopes gently towards the water's edge, creating a mosaic of sun-dappled neighborhoods and secluded coves. The air here often carries the scent of damp earth and pine needles, a refreshing balm that mingles with the fainter, salt-tinged breeze from Puget Sound, even miles inland. The island’s character is one of quiet refinement, a place where manicured lawns meet wilder, forested pockets, and the distant hum of city life is softened by the rustle of leaves and the lapping of waves against its shores. The history of Mercer Island is deeply intertwined with its maritime setting, its shores having long been a gathering place for indigenous peoples before European settlement. Later, its development was spurred by the construction of bridges connecting it to the mainland, transforming it from a somewhat isolated retreat into a sought-after residential haven. The island’s economy, once reliant on logging and some agriculture, has largely shifted to service-based industries and the daily commute of its residents to the larger metropolitan centers. Today, Mercer Island is known for its excellent schools and its commitment to preserving its natural beauty, evident in its numerous parks and protected green spaces, offering a distinctively tranquil counterpoint to the bustling energy of its neighbors.

About This Mercer Island Map Page

This page provides an interactive Google map of Mercer Island, Washington with street, satellite and terrain views and integrated Street View imagery. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Mercer Island and King County.

Detailed location data for Mercer Island includes the ZIP code (98040), telephone area code (206, 253), county seat of King County (Seattle), and school district assignment (Mercer Island School District). These are among the most commonly searched location details for any US city or town.

Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Mercer Island is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.