California’s workers’ compensation system is established on a statewide basis. However, claim patterns and costs often vary across the state. The annual WCIRB Geo Study underscores regional differences in claim characteristics across California.

WCIRB Geo Study 2023

• 2023 WCIRB Geo Study (Rel. November 1, 2023) 
  (Use Adobe Acrobat to best view the report.)
• The 2023 web-based interactive map allows you to quickly view key measures across regions.
•  2023 Data Table
•  2023 Zip Code Mapping

Research Forum Webinar

2023 WCIRB Geo Study
Wednesday, November 15, 2023, 10:00 AM – 11:00 AM PT
WCIRB actuaries will explore the geographical differences in California’s workers’ compensation system. While the system is established on a statewide basis, claim patterns and costs often vary across the state. With the release of the interactive 2023 WCIRB Geo Study, join us for a free webinar where we discuss new findings on regional similarities and differences across California related to indemnity claim frequency and severity; medical and pharmaceutical costs; loss adjustment expenses; loss development; large losses; and more.
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Click here to view previous WCIRB Geo Study reports.