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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

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.

YearTotal payrollEmployeesMedian 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.

Record list

Employees

Page 1

Denis Mc Namara

Graphics Technician V/Office Chief Administrative Officer

2018 total comp
$26,279
Base pay
$26,279
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$26,279
Hire date
1990-11-26
Middle name
M

Source-specific fields

Employee Identifier
71e5f1b2-754e-4db4-bb02-b1f2693c57c9
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
1033
Office
1011
Position Id
9500234

Denis Mc Namara works as a Graphics Technician V for Office Chief Administrative Officer. Their tenure dates to 1990, about 28 years. Denis earned $26,279 in 2018.

Carolyn Hayes

Law Librarian IV/Office Chief Administrative Officer

2018 total comp
$26,148
Base pay
$26,148
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$26,148
Hire date
2005-10-31
Middle name
L

Source-specific fields

Employee Identifier
78523192-4596-4e49-a1e8-a8f85dbb63a0
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
838
Office
1011
Position Id
9518321

Carolyn Hayes works as a Law Librarian IV for Office Chief Administrative Officer. Their tenure dates to 2005, about 13 years. Carolyn earned $26,148 in 2018.

Marina Claudio

Deputy Chief Administrative Officer/Office Chief Administrative Officer

2018 total comp
$25,860
Base pay
$25,860
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$25,860
Hire date
2003-02-10

Source-specific fields

Employee Identifier
e62ea693-9715-4791-8636-3e2dee0b35c7
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
5299
Office
1011
Position Id
9500107

At Office Chief Administrative Officer, Marina Claudio serves as a Deputy Chief Administrative Officer. Hired in 2003, they have about 15 years of service. Their 2018 pay totaled $25,860.