Cook County, Illinois / Sheriff's Administrative and HR

Agency file

Sheriff's Administrative and HR

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

The Sheriff's Administrative and HR provides law enforcement and public safety — patrol, criminal investigation, and emergency response.

In 2018, this agency had 226 employees with median total compensation of $15,707; the highest distinct record was $31,218.

Year: 2018
Total payroll: $3.2M
Employees: 226
Median total: $15,707
Highest record: $31,218

What the records show

Compensation analytics

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

Salary distribution

$40$30,228+

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

How 2018 total compensation is spread across the 226 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($15,707) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $14,150 (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

$4,397

$5,707

$15,707

$21,003

$24,263

The pay ladder for this department. Someone at the 90th percentile earns $24,263 — more than 90% of the department; the 10th percentile earns $4,397. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Administrative Assistant III

35 · $16,125

26 · $20,244

15 · $16,554

13 · $27,875

6 · $16,888

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.

Trend

Year over year

How this department's total payroll, headcount, and median pay changed across the 3 published years.

Year	Total payroll	Employees	Median pay
2016	$6.3M —	349 —	$18,002 —
2017	$6.5M ▲ 3.1%	350 ▲ 0.3%	$18,780 ▲ 4.3%
2018	$3.2M ▼ 50.5%	226 ▼ 35.4%	$15,707 ▼ 16.4%

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.

Sheriff Administrative & HR Cook County, Illinois53% match
Pps Prisons City of Philadelphia45% match
Texas Department of Criminal Justice Texas45% match
She Cdc-M Offend Management Key Metro Nashville45% match
Maine Correctional Center Maine44% match
Jail Allegheny County, Pennsylvania44% match

Record list

Employees

Page 1

Daniel Helms

Correctional Sergeant/Sheriff's Administrative and HR

2018 total comp

$23,395

Base pay: $23,395
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,395
Hire date: 1998-02-17

Source-specific fields

Employee Identifier: a4ca7443-567f-480e-b638-b02099073013
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1361
Office: 1214
Position Id: 9506682

Daniel Helms holds the role of Correctional Sergeant at Sheriff's Administrative and HR. They have served since 1998 (about 20 years). In 2018, their total compensation was $23,395.

Alexis Herrera

Chief Financial Officer/Sheriff's Administrative and HR

2017 total comp

$23,395

Base pay: $23,395
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,395
Hire date: 1984-06-07
Middle name: A

Source-specific fields

Employee Identifier: c2966dcb-9717-45a3-b800-f481d106f1bf
Fiscal Period: 2017Q1
Fiscal Quarter: 1
Job Code: 120
Office: 1214
Position Id: 9502647

Alexis Herrera works as a Chief Financial Officer for Sheriff's Administrative and HR. Their tenure dates to 1984, about 33 years. Alexis earned $23,395 in 2017.

Denise Kilmartin

Deputy Sheriff Sergeant/Sheriff's Administrative and HR

2018 total comp

$23,236

Base pay: $23,236
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,236
Hire date: 1996-08-05
Middle name: M

Source-specific fields

Employee Identifier: abe5dc4c-d721-4eb6-9c94-fb6df3bd8f15
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1341
Office: 1214
Position Id: 9504470

Denise Kilmartin holds the role of Deputy Sheriff Sergeant at Sheriff's Administrative and HR. Hired in 1996, they have about 22 years of service. In 2018, their total compensation was $23,236.

Pedro Vargas

Laborer/Sheriff's Administrative and HR

2018 total comp

$23,072

Base pay: $23,072
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,072
Hire date: 2015-01-25
Middle name: E

Source-specific fields

Employee Identifier: 90342060-3816-4d3e-93c6-20fb7a57790c
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 2392
Office: 1214
Position Id: 9506475

At Sheriff's Administrative and HR, Pedro Vargas serves as a Laborer. Their tenure dates to 2015, about 3 years. Their 2018 pay totaled $23,072.

Rodney Clopton

Laborer I/Sheriff's Administrative and HR

2018 total comp

$23,050

Base pay: $23,050
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,050
Hire date: 2015-04-20
Middle name: N

Source-specific fields

Employee Identifier: 4917df08-859d-410c-b3c3-ec1d7e026d5f
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 2393
Office: 1214
Position Id: 9503148

Rodney Clopton is a Laborer I at Sheriff's Administrative and HR. Their tenure dates to 2015, about 3 years. 2018 total compensation came to $23,050.

Charles Martinez

Database Administrator/Sheriff's Administrative and HR

2017 total comp

$22,968

Base pay: $22,968
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,968
Hire date: 2017-06-12
Middle name: A

Source-specific fields

Employee Identifier: f2500a14-cc5e-4eae-acbb-7573963aacee
Fiscal Period: 2017Q4
Fiscal Quarter: 4
Job Code: 6469
Office: 1214
Position Id: 9506164

Charles Martinez works as a Database Administrator for Sheriff's Administrative and HR. Their tenure dates to 2017, under a year. Charles earned $22,968 in 2017.

Baolan Zhu

Data Analyst/Sheriff's Administrative and HR

2017 total comp

$22,968

Base pay: $22,968
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,968
Hire date: 2017-05-30

Source-specific fields

Employee Identifier: b135c1f9-c446-47b8-a083-e3075911967b
Fiscal Period: 2017Q4
Fiscal Quarter: 4
Job Code: 6379
Office: 1214
Position Id: 9504712

At Sheriff's Administrative and HR, Baolan Zhu serves as a Data Analyst. Their tenure dates to 2017, under a year. Their 2017 pay totaled $22,968.

Rochelle Janiak-Wilk

Deputy Sheriff II/Sheriff's Administrative and HR

2018 total comp

$22,935

Base pay: $22,935
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,935
Hire date: 1990-06-18

Source-specific fields

Employee Identifier: 8eb0b374-84ab-4264-b6db-82f7dc79d984
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1333
Office: 1214
Position Id: 9504556

Rochelle Janiak-Wilk is a Deputy Sheriff II at Sheriff's Administrative and HR. Hired in 1990, they have about 28 years of service. 2018 total compensation came to $22,935.

Laurence Skiver

Vehicle Service Technician II/Sheriff's Administrative and HR

2018 total comp

$22,929

Base pay: $22,929
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,929
Hire date: 1993-12-13
Middle name: A

Source-specific fields

Employee Identifier: 705c2c63-5df3-48a7-bc0f-1bc50acc64fe
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5705
Office: 1214
Position Id: 9502721

Laurence Skiver holds the role of Vehicle Service Technician II at Sheriff's Administrative and HR. They have served since 1993 (about 25 years). In 2018, their total compensation was $22,929.

Wylola Shinnawi

Fmla Manager-Sheriff/Sheriff's Administrative and HR

2018 total comp

$22,853

Base pay: $22,853
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,853
Hire date: 2006-09-05
Middle name: T

Source-specific fields

Employee Identifier: d1b34192-ec8c-4f28-be66-e5e312e64864
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 4742
Office: 1214
Position Id: 9502652

Wylola Shinnawi holds the role of Fmla Manager-Sheriff at Sheriff's Administrative and HR. Hired in 2006, they have about 12 years of service. In 2018, their total compensation was $22,853.