Cook County, Illinois / Department of Corrections

Agency file

Department of Corrections

Source file: Cook County, Illinois — Employee Payroll / ingested Jun 19, 2026

The Department of Corrections runs the corrections system — operating prisons and jails, supervising people in custody, and managing parole or probation.

In 2018, this agency had 590 employees with median total compensation of $14,457; the highest distinct record was $44,106.

Year: 2018
Total payroll: $8.2M
Employees: 590
Median total: $14,457
Highest record: $44,106

What the records show

Compensation analytics

These summaries compare pay within the agency before listing individual records.

Salary distribution

$510$22,234+

Hover a bar for its range; click to filter the list below.

How 2018 total compensation is spread across the 590 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($14,457) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $13,912 (100%)
Overtime — $0 (0%)
Other — $0 (0%)
Benefits — $0 (0%)

What an average paycheck here is made of — base salary versus overtime, other pay (bonuses, allowances), and benefits. A large overtime or other-pay share means take-home often exceeds base salary.

Pay percentiles

10th

25th

Median

75th

90th

$9,539

$12,720

$14,457

$15,908

$17,150

The pay ladder for this department. Someone at the 90th percentile earns $17,150 — more than 90% of the department; the 10th percentile earns $9,539. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Correctional Officer

376 · $14,281

Investigator II Inten Supervisor

47 · $16,050

Correctional Lieutenant

34 · $18,351

Deputy Sheriff D2B

25 · $15,767

Clerk V (Seiu73)

12 · $9,646

The most common job titles in this department by headcount, with the median total compensation for each. Click a title to see everyone who holds it.

Compare

Similar departments

Departments elsewhere with the most similar mix of roles — a proxy for the same kind of agency, matched by workforce composition rather than name. Pay is not cost-of-living adjusted.

Department of Corrections Cook County, Illinois98% match
Pps Prisons City of Philadelphia98% match
She Cdc-M Offend Management Key Metro Nashville97% match
Jail Allegheny County, Pennsylvania96% match
Maine Correctional Center Maine96% match
Doc District of Columbia96% match

Record list

Employees

Page 1

Antonio Ortiz

Clerk V (Seiu73)/Department of Corrections

2018 total comp

$9,539

Sub-department: Specialty Inst Operations
Base pay: $9,539
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,539
Hire date: 2017-09-22
Employment type: Salaried
Middle name: R

Source-specific fields

Class Code: 8005
Position Number: 030902

Antonio Ortiz is a Clerk V (Seiu73) at Department of Corrections within Specialty Inst Operations. Their tenure dates to 2017, about a year, working salaried. 2018 total compensation came to $9,539.

Betty Georgakopoulos

Clerk V (Seiu73)/Department of Corrections

2018 total comp

$9,538

Base pay: $9,538
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,538
Hire date: 2004-07-26

Source-specific fields

Employee Identifier: 5dfd613a-4449-4a0a-a06b-76fbe6c388fd
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6799
Office: 1239
Position Id: 1805100

Betty Georgakopoulos holds the role of Clerk V (Seiu73) at Department of Corrections. They have served since 2004 (about 14 years). In 2018, their total compensation was $9,538.

Brenda Smith-Clincy

Clerk V (Seiu73)/Department of Corrections

2018 total comp

$9,538

Base pay: $9,538
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,538
Hire date: 2005-11-28
Middle name: F

Source-specific fields

Employee Identifier: 64c8f739-341f-415c-b7d7-f448da583fcd
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6799
Office: 1239
Position Id: 1805099

Brenda Smith-Clincy is a Clerk V (Seiu73) at Department of Corrections. Their tenure dates to 2005, about 13 years. 2018 total compensation came to $9,538.

Keith Gresham

Correctional Officer/Department of Corrections

2018 total comp

$9,221

Base pay: $9,221
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,221
Hire date: 2008-07-21
Middle name: J

Source-specific fields

Employee Identifier: 5661f1f1-eb3a-4649-b141-bb37b80284d7
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1360
Office: 1239
Position Id: 1804372

At Department of Corrections, Keith Gresham serves as a Correctional Officer. Hired in 2008, they have about 10 years of service. Their 2018 pay totaled $9,221.

Peter Tam

Investigator II Inten Supervisor/Department of Corrections

2018 total comp

$9,129

Base pay: $9,129
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,129
Hire date: 2003-08-25

Source-specific fields

Employee Identifier: 3b432f89-ee50-46c9-bf89-7e53367d225c
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 671
Office: 1239
Position Id: 1804173

Peter Tam is a Investigator II Inten Supervisor at Department of Corrections. Their tenure dates to 2003, about 15 years. 2018 total compensation came to $9,129.

Isam Hindia

Administrative Assistant II/Department of Corrections

2018 total comp

$9,116

Base pay: $9,116
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,116
Hire date: 2014-09-22

Source-specific fields

Employee Identifier: 527c0465-c17a-42bb-b23f-715e9f1b6b30
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 47
Office: 1239
Position Id: 1805146

Isam Hindia works as a Administrative Assistant II for Department of Corrections. Hired in 2014, they have about 4 years of service. Isam earned $9,116 in 2018.

Christopher Singletary

Clerk V (Seiu73)/Department of Corrections

2018 total comp

$9,116

Base pay: $9,116
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,116
Hire date: 2010-03-29

Source-specific fields

Employee Identifier: 0c17fabe-edae-4c55-82a8-061da5838b5f
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6799
Office: 1239
Position Id: 1804933

Christopher Singletary works as a Clerk V (Seiu73) for Department of Corrections. Their tenure dates to 2010, about 8 years. Christopher earned $9,116 in 2018.

Gail Jackson

Clerk V (Seiu73)/Department of Corrections

2018 total comp

$9,105

Base pay: $9,105
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $9,105
Hire date: 2010-03-29
Middle name: V

Source-specific fields

Employee Identifier: ec66eceb-04a9-47e2-839f-2cdd88204209
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6799
Office: 1239
Position Id: 1804925

Gail Jackson holds the role of Clerk V (Seiu73) at Department of Corrections. Their tenure dates to 2010, about 8 years. In 2018, their total compensation was $9,105.

Maciej Walkosz

Correctional Officer/Department of Corrections

2018 total comp

$8,919

Base pay: $8,919
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $8,919
Hire date: 2017-02-14
Middle name: T

Source-specific fields

Employee Identifier: a3e2467a-e5b1-4e19-b4b2-e47c52361d8f
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1360
Office: 1239
Position Id: 1804390

Maciej Walkosz holds the role of Correctional Officer at Department of Corrections. They have served since 2017 (about a year). In 2018, their total compensation was $8,919.