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Geographic Information Systems – GIS Data Download

The Mason County GIS Department provides free download of their standard GIS data sets in shapefile format.  Use the links below to access the download pages for the layers you need.  If you need a data set that is not listed here, contact the GIS Department to see if it is available.  Please note that the GIS Department only distributes data that it maintains.  Many other GIS datasets that cover Mason County are available from various state agencies.  We have provided links to the most common agency GIS data webpages on our “Links” page under the “Washington State GIS Data” section.


GIS DATA Links (the list of layers)