Welcome to the landing page for all things geospatial for the Napa County Planning, Building, and Environmental Services Department. This page is meant to serve as a technical resource for individuals versed in displaying and using GIS data in GIS and/or CAD platforms.
We manage an ever-growing gallery of open data layers and public-facing maps and applications. Please see below for more information and to access our services.
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If you don't see the layer you're looking for below, please check out the Napa County GIS Data Catalog for layers managed by the county's enterprise GIS team here: http://gis.napa.ca.gov/giscatalog/catalog_xml.asp