Workers' compensation information system (WCIS)
Workers’ Compensation Claims by Region and County
First Reports of Injury (FROIs) submitted by Trading Partners to the Workers’ Compensation Information System (WCIS) captures location information about California’s workers’ compensation claims. Three data elements on location are the postal code of the accident/injury site; the employer’s complete address; and, the employee’s address.
The tables, charts and reports below are taken from the postal codes of each of three data elements. The numbers reflect the WCIS database information as of the run date of the report.
Percent of FROIs Reported by County of Accident Location in 2019
|2019 FROI||2019 Employment (EDD)*||Percent FROIs||Percent Employment (EDD)|| Rate of Injury to Employment
per 100 employees
*California Employment and Development Department (EDD) Labor Market Information (LMI) Local Area Unemployment Statistics Annual Average, updated March 13, 2020.
Annual Reports by Location
2019 Reports by Location
|2019||Annual Aggregate Region and County Reports||7||Workers' compensation claims by region|
|2019||Annual Aggregate Region and County Reports||7a||Workers' compensation claims by region and county|