California Public Land Survey System

These files contain the spatial data required to plot the townships and 1 mile square sections for each California county or for all of California (Statewide) and were updated in 2025. These files add additional detail to the standardized Bureau of Land Management Public Land System data for federally owned land in California to extend the township and section data across the numerous land grant and unsurveyed areas of the State, including non-federal land. DPR uses these detailed PLSS information files for pesticide use reporting, well locations, and other information and data sharing.

GIS Statewide Feature Service

In alignment with the California Department of Technology (CDT) Open Data Policy, the California Department of Pesticide Regulation (DPR) now publishes a Statewide DPR PLSS GIS feature service that can easily be added to GIS mapping applications such as ESRI's ArcGIS Pro, QGIS open source tools, and Tableau.

• Overview of DPR’s PLSS Open Data
• DPR PLSS GIS Feature Service

GIS Files for Individual Counties

Each link will download a zip file containing the corresponding shapefile (each shapefile consists of a set of seven files). The shapefiles are in the Albers Equal Area (NAD 83) projection – also referred to as the NAD 1983 California (Teale) Albers projection. A Geographic Information System (GIS) program is required to view these files. Each County zip file also has an additional Google Earth format (KML) file that may be easier for non-GIS stakeholders to use.

For Pesticide Use Report data questions, contact: PUR.inquiry@cdpr.ca.gov. For questions about these shapefiles, the CA PLSS, or for .kml/.kmz versions for Google Earth, contact: GWPP@cdpr.ca.gov

Version 2025.01 (2023 PUR Data Update)