Maine · FIPS 23029 · County seat: Machias
Washington County, ME GIS & Parcel Viewer
Looking for lot lines or a parcel number in Washington County, ME? The quickest route is Maine GeoLibrary Parcel Viewer, the statewide parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Washington County statewide map ↗
Opens maine.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Washington County at a glance
| Official map | Maine GeoLibrary Parcel Viewer |
|---|---|
| Type | Statewide map (covers all of Maine) |
| Website | maine.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Machias |
| Population | 31,555 (2023 Census Bureau estimate) |
| Land area | 2,563 sq mi |
| FIPS code | 23029 |
Who runs this map
The link goes to a statewide map (Maine GeoLibrary Parcel Viewer). It shows parcels for Washington County along with the rest of Maine. 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.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
The county in brief
Washington County had an estimated 31,555 residents in 2023, according to the Census Bureau. With about 2,563 square miles of land, that works out to roughly 12 people per square mile. By population it ranks 14th of 16 counties in Maine. Census maps also count about 695 square miles of water inside its boundary. Machias serves as the county seat.
Counties next to Washington County
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Washington County:
Maps vs. surveys
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.