Cook County, Illinois / County Treasurer

Agency file

County Treasurer

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

The County Treasurer manages public finances — collecting revenue and taxes, budgeting, accounting, and financial oversight.

In 2018, this agency had 78 employees with median total compensation of $20,687; the highest distinct record was $44,021.

Year: 2018
Total payroll: $1.7M
Employees: 78
Median total: $20,687
Highest record: $44,021

What the records show

Compensation analytics

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

Salary distribution

$1,248$44,021+

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 ($20,687) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $22,121 (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

$11,748

$16,888

$20,687

$28,179

$33,654

The pay ladder for this department. Someone at the 90th percentile earns $33,654 — more than 90% of the department; the 10th percentile earns $11,748. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Administrative Analyst I

11 · $16,644

Administrative Assistant IV

6 · $20,997

Administrative Assistant III

6 · $18,226

Systems Analyst V

4 · $33,387

Accountant III

4 · $14,003

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	$1.9M —	107 —	$17,545 —
2017	$1.9M ▲ 0.9%	112 ▲ 4.7%	$17,373 ▼ 1.0%
2018	$1.7M ▼ 9.7%	78 ▼ 30.4%	$20,687 ▲ 19.1%

Record list

Employees

Page 1

Stefania Hatzisavas

Administrative Assistant V/County Treasurer

2018 total comp

$21,960

Base pay: $21,960
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,960
Hire date: 2008-03-17

Source-specific fields

Employee Identifier: 4d8cc647-ce6d-46b4-be0a-9f0c105f90cf
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 51
Office: 1060
Position Id: 9501357

At County Treasurer, Stefania Hatzisavas serves as a Administrative Assistant V. They have served since 2008 (about 10 years). Their 2018 pay totaled $21,960.

Anna Giacone

Administrative Assistant IV/County Treasurer

2018 total comp

$21,851

Base pay: $21,851
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,851
Hire date: 1999-06-02

Source-specific fields

Employee Identifier: c09c7ae1-287f-4a05-b52c-c3c7b341b927
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 50
Office: 1060
Position Id: 1535

Anna Giacone is a Administrative Assistant IV at County Treasurer. Their tenure dates to 1999, about 19 years. 2018 total compensation came to $21,851.

Erin Clifford

Legal Counsel/County Treasurer

2018 total comp

$21,742

Base pay: $21,742
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,742
Hire date: 2018-01-02
Middle name: E

Source-specific fields

Employee Identifier: d28bedf7-1b4d-49b5-972e-631d3ea5099b
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 4165
Office: 1060
Position Id: 1000866

Erin Clifford is a Legal Counsel at County Treasurer. They have served since 2018 (under a year). 2018 total compensation came to $21,742.

Joanna Vassilatos

Administrative Analyst II/County Treasurer

2018 total comp

$21,634

Base pay: $21,634
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,634
Hire date: 2017-11-15

Source-specific fields

Employee Identifier: 94b11308-97ff-41f3-8e78-0d6f56b88505
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 292
Office: 1060
Position Id: 206005

At County Treasurer, Joanna Vassilatos serves as a Administrative Analyst II. Hired in 2017, they have about a year of service. Their 2018 pay totaled $21,634.

Vasily Zimbrakos

System Software Programmer II/County Treasurer

2018 total comp

$21,207

Base pay: $21,207
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,207
Hire date: 2000-01-18

Source-specific fields

Employee Identifier: 28499f44-bf6d-4f5c-a36c-dc9e671ec67a
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1115
Office: 1060
Position Id: 100215

Vasily Zimbrakos is a System Software Programmer II at County Treasurer. Hired in 2000, they have about 18 years of service. 2018 total compensation came to $21,207.

Shirley Grau

Systems Analyst III/County Treasurer

2018 total comp

$21,101

Base pay: $21,101
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $21,101
Hire date: 2004-10-04

Source-specific fields

Employee Identifier: 8295ab5c-b4fc-43b5-a08a-97b3a1c23860
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1112
Office: 1060
Position Id: 9501417

At County Treasurer, Shirley Grau serves as a Systems Analyst III. They have served since 2004 (about 14 years). Their 2018 pay totaled $21,101.

Mahalia Johnson

Administrative Assistant IV/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 2001-05-29

Source-specific fields

Employee Identifier: 6d9c7966-5393-431b-9c3c-64690fd7d618
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 50
Office: 1060
Position Id: 100209

Mahalia Johnson works as a Administrative Assistant IV for County Treasurer. Hired in 2001, they have about 17 years of service. Mahalia earned $20,997 in 2018.

Khadijah Abdullah

Administrative Assistant IV/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 1987-08-04
Middle name: M

Source-specific fields

Employee Identifier: 0e33773a-e20a-4e93-8163-9ec02a1f6dfa
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 50
Office: 1060
Position Id: 9501320

Khadijah Abdullah works as a Administrative Assistant IV for County Treasurer. Their tenure dates to 1987, about 31 years. Khadijah earned $20,997 in 2018.

George Georgelos

Administrative Assistant IV/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 2000-08-14

Source-specific fields

Employee Identifier: 312dd251-5729-46ec-aa25-127b50dbba30
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 50
Office: 1060
Position Id: 9501531

At County Treasurer, George Georgelos serves as a Administrative Assistant IV. Hired in 2000, they have about 18 years of service. Their 2018 pay totaled $20,997.

William Bergfalk

Administrative Assistant IV/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 1990-05-01
Middle name: D

Source-specific fields

Employee Identifier: ea09e248-68ab-4b0e-b19b-5f1c884a93f3
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 50
Office: 1060
Position Id: 206008

William Bergfalk holds the role of Administrative Assistant IV at County Treasurer. They have served since 1990 (about 28 years). In 2018, their total compensation was $20,997.

John George

Systems Analyst II/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 2014-06-23

Source-specific fields

Employee Identifier: 03794503-ad2e-4e03-b022-9808c03ea6ba
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 1111
Office: 1060
Position Id: 9501332

John George is a Systems Analyst II at County Treasurer. Hired in 2014, they have about 4 years of service. 2018 total compensation came to $20,997.

Teresa Olenski

Personnel Manager II/County Treasurer

2018 total comp

$20,997

Base pay: $20,997
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $20,997
Hire date: 2000-01-12

Source-specific fields

Employee Identifier: 22b253b3-7b3b-404b-aaab-4d0c1aec9a79
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 2178
Office: 1060
Position Id: 9501309

Teresa Olenski works as a Personnel Manager II for County Treasurer. Their tenure dates to 2000, about 18 years. Teresa earned $20,997 in 2018.