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 County's Purchase of Development Rights Program Page
County Travel PlannerTravel Planner - Road Projects Viewer
The Road Projects Viewer shows Public Works Road related construction and operational status throughout the year regarding traffic impacts where drivers can expect delays or closures on county roads. This application is typically updated on Thursdays and Fridays.  The application does not include all projects, only those expected to have an impact on traffic.  Winter travel considerations are also included in the application viewer tabs. 
County Travel PlannerTravel Planner - Bridge Restrictions Viewer
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 PlannerTravel Planner - Snow Priority Roads Viewer
Whatcom County Public Works (WCPW) is charged with safely, efficiently, and cost-effectively maintaining reliable access to the County’s road system. In order to do this during winter months, WCPW has long-established guidelines for coordinated snow and ice removal on all of the 960 miles of county-maintained roads.
County Travel PlannerTravel Planner - All Weather Roads Viewer
Roads that are constructed to an “All-Weather” standard and are not typically affected by load restrictions. This information is commonly used by truckers transporting goods and equipment. Portions of these roads may need to be weight restricted during extreme weather, especially during freeze-thaw conditions. Emergency restrictions do not affect passenger vehicles.

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.