Investigator salary in Cook County, IL

The average salary for a investigator in Cook County, IL is $70,500 per year. Investigator salaries in Cook County, IL can vary between $33,000 to $135,500 and depend on various factors, including skills, experience, employer, bonuses, tips, and more.

This data is exclusive to Mint Salary and is based on 108 tax returns from TurboTax customers who reported their occupation as investigator.

The following companies offer the highest salaries for investigators in Cook County, IL: National Finance Center ($101,000 a year), State of Illinois ($69,500 a year), and City of Chicago ($62,000 a year).