GIS Data

This page provides links to all the GIS data resources that are available from the County of Napa GIS.

All of the data layers in our system are listed in the GIS Data Catalog. Here you will find descriptions of the layers, metadata, access and Data Steward information.

The Data Request Form is used to request GIS data on DVD or via electronic download. The form can also be accessed by clicking the "Register" link in the Data Catalog.

Data Catalog

Data Request Form
Instructions for Data Requests on DVD
Data Distribution Policy

Road Name List
Road Naming Standards

Landuse Codes for Parcel Data