Oregon · FIPS 41067 · County seat: Hillsboro
Washington County, OR GIS & Parcel Viewer
Here is the direct link to the statewide parcel map covering Washington County, OR: ORMAP statewide tax lot viewer (Oregon). Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Washington County statewide map ↗
Opens ormap.net in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | ORMAP statewide tax lot viewer (Oregon) |
|---|---|
| Type | Statewide map (covers all of Oregon) |
| Website | ormap.net |
| Access | Free, no login (checked Oct 2026) |
| County seat | Hillsboro |
| Population | 598,865 (2023 Census Bureau estimate) |
| Land area | 724 sq mi |
| FIPS code | 41067 |
Who runs this map
Washington County doesn't have its own viewer in our directory, so we point you to a statewide map: ORMAP statewide tax lot viewer (Oregon). Zoom in on Washington County to see its parcels. A statewide layer can trail the county's own books by weeks or months, so treat it as a fast first look rather than the final word. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Washington County viewer
- Open the statewide map with the button above.
- Search for an address in Washington County, or zoom to the county on the map.
- Click a parcel to see the attributes the state layer includes.
- Write down the parcel number and use it for records searches with the Washington County assessor or recorder.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
About Washington County
Census Bureau figures put Washington County at about 598,865 people (2023 estimate) on roughly 724 square miles of land, which is about 827 residents per square mile. That makes it number 2 out of 36 Oregon counties by population. The county seat is Hillsboro.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Washington County:
A note on accuracy
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.