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1. City of Chicago Department Of Police Department Police Department

Salary expenditure: $1 billion
Number of positions: 14k

Data year: 2017
2. Illinois Department Of Human Services Department

Salary expenditure: $843 million
Number of positions: 15k

Data year: 2017
3. Illinois Department Of Corrections Department

Salary expenditure: $842 million
Number of positions: 13k

Data year: 2017
4. City of Chicago Department Of Fire Department

Salary expenditure: $597 million
Number of positions: 5k

Data year: 2017
5. Illinois Department Of Transportation Department

Salary expenditure: $413 million
Number of positions: 7k

Data year: 2017
6. Cook County Stroger Hospital Department

Salary expenditure: $358 million
Number of positions: 4k

Data year: 2017
7. Cook County Department Of Corrections Department

Salary expenditure: $279 million
Number of positions: 4k

Data year: 2017
8. Chicago Transit Authority Bus Operations Department

Salary expenditure: $259 million
Number of positions: 4k

Data year: 2017
9. Illinois Department Of State Police Department Police Department

Salary expenditure: $249 million
Number of positions: 3k

Data year: 2017
10. Illinois Children And Family Services Department

Salary expenditure: $210 million
Number of positions: 3k

Data year: 2017
11. Illinois Secretary Of State Department

Salary expenditure: $191 million
Number of positions: 4k

Data year: 2017
12. City of Chicago Water Management Department

Salary expenditure: $186 million
Number of positions: 2k

Data year: 2017
13. Illinois Circuit Court Judges Department

Salary expenditure: $173 million
Number of positions: 954

Data year: 2017
14. City of Chicago Streets And Sanitation Department

Salary expenditure: $161 million
Number of positions: 2k

Data year: 2017
15. Illinois Department Of Healthcare And Family Services Department

Salary expenditure: $131 million
Number of positions: 2k

Data year: 2017
16. City of Chicago Department Of Aviation Department

Salary expenditure: $127 million
Number of positions: 2k

Data year: 2017
17. Chicago Transit Authority Rail Operations Department

Salary expenditure: $114 million
Number of positions: 2k

Data year: 2017
18. Illinois State Toll Highway Authority Department

Salary expenditure: $110 million
Number of positions: 2k

Data year: 2017
19. Illinois Department Of Revenue Department

Salary expenditure: $109 million
Number of positions: 2k

Data year: 2017
20. City of Chicago Department Of Transportation Department

Salary expenditure: $109 million
Number of positions: 1k

Data year: 2017
21. City of Chicago Office Of Emerg Communications Department

Salary expenditure: $96 million
Number of positions: 2k

Data year: 2017
22. Metropolitan Water Reclamation District Maintenance & Operations Department

Salary expenditure: $93 million
Number of positions: 978

Data year: 2017
23. Chicago Public Schools Diverse Lrn Related Svc Prv Cw Department

Salary expenditure: $91 million
Number of positions: 1k

Data year: 2017
24. Illinois Department Of Public Health Department

Salary expenditure: $91 million
Number of positions: 1k

Data year: 2017
25. Illinois Natural Resources Department

Salary expenditure: $88 million
Number of positions: 2k

Data year: 2017

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Need help or see any problems or errors?

This database is a living document. We update it regularly and are always on the lookout to make it more robust and precise. If you think we are missing a government unit we should include, please let us know.

While we make every reasonable effort to vet the accuracy of compensation included in the database, it is impossible to double-check all numbers in an undertaking of this magnitude. The basic building blocks of this database are reports provided by public agencies and it is possible errors in those initial reports or others made along the way will be reflected in the numbers we publish. That is why we need help from the public to point out problems.

If you spot something that isn’t right, or if information is missing for a government unit you care about, please contact our data coordinator.