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

CALIFORNIA
COUNTY
2019 FROI 2019 Employment (EDD)* Percent FROIs Percent Employment (EDD) Rate of Injury to Employment
per 100 employees
Totals 699,120 18,627,499 100.0% 100.0% 3.8
LOS ANGELES 169,409 4,894,300 24.2% 26.3% 3.5
ORANGE 55,477 1,578,300 7.9% 8.5% 3.5
SAN DIEGO 54,327 1,539,900 7.8% 8.3% 3.5
SAN BERNARDINO 39,989 930,700 5.7% 5.0% 4.3
RIVERSIDE 35,888 1,057,900 5.1% 5.7% 3.4
ALAMEDA 31,354 819,700 4.5% 4.4% 3.8
SANTA CLARA 30,202 1,478,200 4.3% 7.9% 2.0
SACRAMENTO 24,714 686,300 3.5% 3.7% 3.6
FRESNO 18,131 418,100 2.6% 2.2% 4.3
SAN FRANCISCO 17,773 570,400 2.5% 3.1% 3.1

*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

Report
Year
Report
Group
Table
Number
Table
Name
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

August 2020