Washington

Across Washington, GIS Map currently maps 53 cities and towns that together hold around 3,892,403 residents. The Evergreen State features Seattle's tech hub, Pacific coastline, and Cascade mountain ranges. The most populous community is Seattle, with about 754,195 residents in King County, and it has an interactive street, satellite and topographic map. Spokane (230,293) and Tacoma (222,758) follow. The state capital, Olympia, sits in Thurston County.

County-level coverage in Washington includes 39 official Census boundaries, each paired with local demographics. King County is the most populous, with about 2,287,171 residents. By land area, Okanogan County is the largest at roughly 5,266 square miles. The youngest population, with a median age of 26.4, is found in Whitman County. Among mapped cities with at least 10,000 residents, Sammamish reports the highest median household income at $239,690. All figures come from the U.S. Census Bureau's American Community Survey 2020-2024 five-year estimates.

The terrain in Washington changes noticeably from place to place. Pullman is the highest at about 2,352 feet above sea level, while Coupeville is the lowest at about 1 feet. Every mapped city observes Pacific Time. According to the USDA U.S. General Soil Map, Inceptisols are the dominant soil order beneath 27 of the mapped city centers. Federal records list 16 government-owned and 179 leased properties in these cities, the most in Seattle. City maps let you switch on FEMA flood zones, USGS contours and land cover layers.

We also map 182 ZIP code areas in Washington, each with its boundary and demographics. The most populated one has about 87,044 residents. The runner-up counts roughly 80,717 people. The densest packs about 47,671 people per square mile. Every page includes drawing and measuring tools plus a click-anywhere inspector that reports the county, ZIP, census tract, school district, flood zone and elevation of any point.