Map Portal

Welcome to Whatcom County’s Geographic Information Systems (GIS) map portal.  Whatcom County provides online maps and maintains several key GIS datasets.  Please refer to the data disclaimer at the bottom of the page prior to using our information.

Interactive Maps

Tax Parcel Viewer thumbnail Opens in new windowWhatcom County Tax Parcel Viewer 
This Tax Parcel Viewer application is intended for public use to access tax parcels and related assessment information. Information obtained from this web map application cannot be used for legal purposes or official documents. Consult Property deeds for full legal descriptions of property boundaries.
Thumbnail Covid19 Testing Sites WebApp Opens in new windowCOVID-19 Testing Sites
This map shows the locations of healthcare providers in Whatcom County offering COVID-19 testing. This map will be updated regularly, however please be aware that testing sites may change and new ones may opn. More information about COVID-19 testing in Whatcom County can be found at
Thumbnail for Purchase of Development RightsWhatcom County Purchase of Development Rights Program
This StoryMap provides information on the Whatcom County Purchase of Development Rights (PDR) Program. It explains the six conservation goals that are the focus of the PDR Program: Agriculture, Forests, Ecosystems, Water, Climate, and Open Space. You can also find more information on the Couny's Purchase of Development Rights Program Page
Posted Bridges thumbnail Opens in new windowBridge Restrictions
Weight Restricted Bridge Restrictions Map showing all posted bridges for Unincorporated Whatcom County. This site has been developed as a reference tool for operators of Commercial Vehicles to identify and locate structures in Whatcom County where access and use is limited based on the vehicle’s weight. You can also find more information on the County’s Bridge Program page.
County Travel PlannerCounty Travel Planner
The County Travel Planner shows Public Works Department construction that will impact traffic and where drivers can expect delays or road closures on county roads. This app is updated on Thursdays and Fridays. It does not include all projects, only those expected to have an impact on traffic.

Downloadable Maps

Assessor Maps 2Assessor Maps
Whatcom County Real Property Search Page contains tax area maps throughout the County.  Once on the search page, go to the upper right corner of page under "Plat Maps".  Type in the Township, Range and section of the area you wish to see.  Whole section maps may reference additional maps, but here is a link to the map numbering layout.  You can also find more information on the Assessor’s Home Page.
Auditor Maps 2Auditor Election District Maps
County Auditor district maps for varying districts available in PDF format.
Parks Maps 2Parks
Links to PDF geo-enabled maps for County maintained parks. To learn more about the Avenza PDF Maps and how to download the app to your mobile device, please visit our Mobile Maps page.  Additional information on County Parks is available at the Parks and Recreation page.
PDS Maps 2Planning and Development Services (PDS)
There are a number of maps available from Whatcom County Planning and Development Services (PDS) in both PDF and hard copy format.

Data Disclaimer
Use of Whatcom County's GIS data implies the user's agreement with the following statement.

Whatcom County disclaims any warranty of merchantability or warranty of fitness of this data for any particular purpose, either express or implied. No representation or warranty is made concerning the accuracy, currency, completeness, or quality of data depicted. Any user of this data assumes all responsibility for use thereof, and further agrees to hold Whatcom County harmless from and against any damage, loss, or liability arising from any use of this data.