Cook County, Illinois / Office Chief Administrative Officer

Agency file

Office Chief Administrative Officer

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

The Office Chief Administrative Officer is a government agency that delivers public services and programs within its jurisdiction.

In 2018, this agency had 78 employees with median total compensation of $16,070; the highest distinct record was $44,423.

Year: 2018
Total payroll: $1.4M
Employees: 78
Median total: $16,070
Highest record: $44,423

What the records show

Compensation analytics

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

Salary distribution

$1,577$31,629+

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

How 2018 total compensation is spread across the 78 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($16,070) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $17,533 (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

$11,862

$12,829

$16,070

$21,527

$27,761

The pay ladder for this department. Someone at the 90th percentile earns $27,761 — more than 90% of the department; the 10th percentile earns $11,862. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Clerk V

11 · $12,716

Animal Control Warden

6 · $16,349

Clerk V (Seiu73)

5 · $14,162

Clerk IV (Seiu73)

4 · $12,971

Administrative Assistant III

3 · $18,101

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	$1.4M —	89 —	$15,158 —
2017	$1.5M ▲ 4.4%	83 ▼ 6.7%	$16,608 ▲ 9.6%
2018	$1.4M ▼ 6.5%	78 ▼ 6.0%	$16,070 ▼ 3.2%

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.

County Clerk Cook County, Illinois67% match
Court Records Allegheny County, Pennsylvania64% match

Record list

Employees

Page 1

Betty Torres

Special Assistant/Office Chief Administrative Officer

2018 total comp

$22,627

Base pay: $22,627
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,627
Hire date: 1991-08-01

Source-specific fields

Employee Identifier: 4861b521-b61b-459d-9607-b16cfd2cc686
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5210
Office: 1011
Position Id: 9900108

Betty Torres is a Special Assistant at Office Chief Administrative Officer. Hired in 1991, they have about 27 years of service. 2018 total compensation came to $22,627.

Mary Arnold

Records Mangmt Administrator/Office Chief Administrative Officer

2018 total comp

$22,281

Base pay: $22,281
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,281
Hire date: 2013-11-04

Source-specific fields

Employee Identifier: ee267022-28b6-4b78-b27b-855a7667b170
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5242
Office: 1011
Position Id: 903304

At Office Chief Administrative Officer, Mary Arnold serves as a Records Mangmt Administrator. They have served since 2013 (about 5 years). Their 2018 pay totaled $22,281.

Peter Gardenier

Mg of Printing & Graphic Services/Office Chief Administrative Officer

2018 total comp

$22,150

Base pay: $22,150
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,150
Hire date: 2013-04-29
Middle name: W

Source-specific fields

Employee Identifier: 58efc6d0-5abc-404c-9d8b-c678fa6fef27
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5558
Office: 1011
Position Id: 9500340

Peter Gardenier works as a Mg of Printing & Graphic Services for Office Chief Administrative Officer. They have served since 2013 (about 5 years). Peter earned $22,150 in 2018.

Mark Dickman

Law Librarian II/Office Chief Administrative Officer

2018 total comp

$21,645

Base pay: $21,645
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,645
Hire date: 1988-04-04
Middle name: E

Source-specific fields

Employee Identifier: 84d7d993-a1d3-4e88-8795-e8f8c78180a1
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 836
Office: 1011
Position Id: 9518328

Mark Dickman holds the role of Law Librarian II at Office Chief Administrative Officer. Hired in 1988, they have about 30 years of service. In 2018, their total compensation was $21,645.