Explore Grand Mound, Washington, with this interactive street and satellite map.
| City | Grand Mound |
| State | Washington (WA) |
| County | Thurston County |
| Country | United States of America |
| Timezone | Pacific Time (America/Los_Angeles) |
| Latitude | 46.80028 |
| Longitude | -123.010875 |
| Population | 3,301 |
| Density | 307.1 /km² |
| Incorporated | N/A |
| ZIP Codes | 98531, 98579 |
| Area Code | 425 |
| County Seat | Olympia |
| School District | Rochester School District |
Grand Mound occupies a distinctive geological rise that lifts its residents slightly above the surrounding alluvial plains, grounding the landscape in a quiet, enduring stability. It lies 5.6 miles north-northwest of Centralia, WA (from Centralia, WA: bearing 331°T), and is situated 9.0 miles north-northwest of Chehalis. The horizon often holds the faint, jagged silhouette of the Cascade Range, a distant wall that reminds those present of the vast, varied terrain stretching toward the eastern interior. To the immediate north, the expansive openness of Grand Mound Prairie provides a flat, grassy counterpoint to the more heavily timbered reaches of the region, while the cooling influence of the nearby Capitol State Forest contributes to a persistent, damp vitality in the air. The gentle current of Prairie Creek meanders through the periphery, carving a subtle path through the earth, while the quiet stillness of Dunlap Pond offers a reflective surface for the changing light of the seasons.
History in Grand Mound lingers in the transition from early agricultural roots to a modern intersection of transit and local enterprise. The economy maintains a steady, utilitarian pace, supported by a mix of service-oriented businesses and the lingering influence of the agrarian traditions that first claimed the soil. Residents often find recreation at the Theodore Hoss Sports Complex, a site that anchors the social energy of the vicinity, while those seeking the more dramatic natural features of the region can travel toward the cascading waters of Mima Falls. Life here is defined by a measured, deliberate tempo, where the gray, low-hanging skies of the Pacific Northwest settle over the fields and roadways, lending a sense of permanence to the daily cycles of work and rest in Grand Mound.
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This page provides an embedded street and satellite map of Grand Mound, Washington. Coordinates: 46.80028, -123.010875. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Grand Mound includes the ZIP code (98531, 98579), telephone area code (425), county seat of Thurston County (Olympia), and school district assignment (Rochester School District).
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |