Welcome to the Mapping Department!

The Lake County Mapping Department was reestablished in 2020 to make County data accessible through geovisualization, as well as maintain and archive existing GIS data and physical historic maps.

We also perform special mapping tasks for various departments and County projects.

See a map navigation and use guide (PDF).

See the Community Wildfire Protection Plan - May 2022 (PDF).

Open Data Portal 

Lake County Mapping has now come out with an open data portal available to the public! You can access the data portal through this link here

Notice / Disclaimer

Although every reasonable effort has been made to check the accuracy for the public information data and graphic representations, Lake County Mapping Department data is not to be used in lieu of surveys or for purposes of settling boundary disputes. Lake County GIS data is assumed to have omissions and errors, and Lake County assumes no liability associated with the use or misuse of this data. The data which is provided here has been developed solely for reference, and contains no warranties, either expressed or implied, of merchant ability or fitness of the data for a particular purpose or use.

Contact Us

To report an error, omission, or correction to County GIS data, please contact the Lake County Mapping Department.