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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

Donna Ciesielski

Administrative Assistant II/Office Chief Administrative Officer

2018 total comp
$16,342
Base pay
$16,342
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$16,342
Hire date
1992-03-23
Middle name
M

Source-specific fields

Employee Identifier
f963f5fc-0965-4176-9677-80c180ef4319
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
47
Office
1011
Position Id
9500677

Donna Ciesielski works as a Administrative Assistant II for Office Chief Administrative Officer. They have served since 1992 (about 26 years). Donna earned $16,342 in 2018.

Tony Wilson

Multilith Operator IV/Office Chief Administrative Officer

2018 total comp
$16,330
Base pay
$16,330
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$16,330
Hire date
1998-08-17

Source-specific fields

Employee Identifier
89c34b9b-635f-49a8-8c9c-46739f0c670c
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
989
Office
1011
Position Id
9500347

At Office Chief Administrative Officer, Tony Wilson serves as a Multilith Operator IV. They have served since 1998 (about 20 years). Their 2018 pay totaled $16,330.

Ruby Wilson

Animal Control Warden/Office Chief Administrative Officer

2018 total comp
$15,809
Base pay
$15,809
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$15,809
Hire date
2012-07-30
Middle name
A

Source-specific fields

Employee Identifier
6bd5313b-8a3b-4463-864b-d367e31cc294
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
2045
Office
1011
Position Id
9518076

Ruby Wilson works as a Animal Control Warden for Office Chief Administrative Officer. Hired in 2012, they have about 6 years of service. Ruby earned $15,809 in 2018.