Washington · FIPS 53073 · County seat: Bellingham
Whatcom County, WA GIS & Parcel Viewer
Looking for lot lines or a parcel number in Whatcom County, WA? The quickest route is Whatcom County Tax Parcel Viewer, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Whatcom County parcel map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Whatcom County Tax Parcel Viewer |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Bellingham |
| Population | 231,919 (2023 Census Bureau estimate) |
| Land area | 2,108 sq mi |
| FIPS code | 53073 |
Who runs this map
This map is published by or for Whatcom County itself, so it reflects the local parcel layer rather than a third-party copy. As of our October 2026 test, anyone could open it without signing in or paying.
Finding a property on this map
- Press the button above; an ArcGIS Experience Builder app opens in a new tab. Accept any splash or disclaimer screen.
- Search by address or parcel ID, or pan to the area.
- Select a parcel to view the information the publisher makes available.
- Explore the app's panels for layers, legends or printing.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
Whatcom County by the numbers
Census Bureau figures put Whatcom County at about 231,919 people (2023 estimate) on roughly 2,108 square miles of land, which is about 110 residents per square mile. By population it ranks 9th of 39 counties in Washington. Another 397 square miles of water fall within its lines, according to Census mapping. The county seat is Bellingham.
Counties next to Whatcom County
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Whatcom County:
Before you rely on the lines
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.