The State of California Department operates office buildings across the extent of the entire State. These offices include a range of building types, ranging from major offices, field support offices, visitor’s centers, labs, and warehouses. Some offices are dedicated to specific Divisions, and others include numerous DWR organizational units (e.g. “West Sacramento”). The list and locations were compiled from websites and DWR tables of buildings, and the DWR GIS workgroup was asked to provide QA/QC of completeness and accuracy of the locations. Quite a bit of feedback was offered, lending some confidence in this as a complete and accurate product. Offices do of course occasionally move, so these data could go out of date without maintenance, and use of the current version is warranted.