Washington County, Oregon Map
Explore Washington County, Oregon with this interactive street and satellite map. Browse all 26 cities and towns in Washington County below.
Interactive Map of Washington County, Oregon
| County | Washington |
| State | Oregon (OR) |
| County Seat | Hillsboro |
| Country | United States of America |
| Latitude | 45.483478 |
| Longitude | -122.890563 |
| Cities & Towns | 26 |
| Area Codes | 503, 971 |
About Washington County, Oregon
Washington County occupies the western reaches of the Tualatin Valley, where the land rises from the flat, alluvial basin toward the jagged, timbered heights of the Coast Range. The Tualatin River moves with a heavy, deliberate sluggishness through this landscape, carving serpentine loops through soil enriched by prehistoric floods and volcanic silt. To the east, the county pushes against the urban sprawl of the state’s largest city, while its western borders bleed into the deep, rain-shadowed verdancy of the mountains. Here, the light at dusk has a peculiar, bruised quality—a violet haze that clings to the fir trees and settles in the hollows, turning the air thick and cool as the coastal fog begins its nightly crawl inland.
Washington County took shape in the middle of the nineteenth century, organized by early settlers who arrived by wagon to claim the fertile bottomlands for wheat and timber. These pioneers established the county seat in a central location that favored the practical needs of regional governance, positioning the administrative center where the valley floor widened and the early transit routes intersected. The town grew not from grand design, but from the slow accumulation of homesteads and the modest needs of a farming population. Even now, one might catch the echo of those first arrivals in the way the older houses sit squarely on their foundations, facing the road with a plain, unadorned resilience that suggests a people who valued utility over show.
Industry here has shifted from the quiet labor of the orchard and the mill to the precision of the clean room and the laboratory, creating a landscape where high-tech campuses stand in stark, glass-walled contrast to the remaining patches of pasture. The economy turns on the hum of innovation, yet the character of the place remains tethered to the weather and the soil. On a damp morning, the scent of damp earth and crushed pine needles rises from the fields, reminding those who work in the glow of monitors that the valley is still a wild, growing thing beneath the asphalt. It is a geography of transitions, where the frantic pace of contemporary life is often tempered by the sheer, quiet insistence of the rain and the way the shadows stretch long across the vineyards as the sun drops behind the western ridge.
Cities and Towns in Washington County
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About This Washington County Map Page
This page provides an interactive map of Washington County, Oregon alongside links to detailed street maps for 26 cities and towns. The county seat is Hillsboro. Each city and town map page includes live weather, local news and precise GPS coordinates.
The Search Maps button below the county map opens USGS topographic maps and aerial imagery as base layers, with a labelled U.S. National Grid (USNG) overlay, a distance and bearing tool, and a single-fix GPS readout giving your USNG grid reference and latitude and longitude.
Location data is sourced from the USGS GNIS database and verified by coordinates, not name matching alone.
| Page generated | September 2026 |
| Location data | USGS GNIS database; coordinates matched to 2020 US Census records |
