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Cook County, Illinois / Treasurer

Agency file

Treasurer

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

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

In 2018, this agency had 9 employees with median total compensation of $640; the highest distinct record was $3,536.

Year
2018
Total payroll
$11.4K
Employees
9
Median total
$640
Highest record
$3,536

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 9 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($640) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

  • Base$1,271 (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
$384
$438
$640
$1,568
$3,466

The pay ladder for this department. Someone at the 90th percentile earns $3,466 — more than 90% of the department; the 10th percentile earns $384. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

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.

Record list

Employees

Page 1

Nicholas Cozzolino

Student Administrative Aide/Treasurer

2018 total comp
$665
Base pay
$665
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$665
Hire date
2016-02-09

Source-specific fields

Employee Identifier
169dec1e-d68d-4552-9ead-ce8e06c6ca5e
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
79
Position Id
1800290

Nicholas Cozzolino works as a Student Administrative Aide for Treasurer. Hired in 2016, they have about 2 years of service. Nicholas earned $665 in 2018.

Bianca Arellano

Student Administrative Aide/Treasurer

2018 total comp
$640
Base pay
$640
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$640
Hire date
2016-02-16
Middle name
G

Source-specific fields

Employee Identifier
8fa5cc58-68f8-4520-967a-acb1a65954b2
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
79
Position Id
1800317

Bianca Arellano is a Student Administrative Aide at Treasurer. They have served since 2016 (about 2 years). 2018 total compensation came to $640.

Mateusz Krajewski

Student Administrative Aide/Treasurer

2018 total comp
$544
Base pay
$544
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$544
Hire date
2017-11-01

Source-specific fields

Employee Identifier
fb9aa10e-f989-41cb-b881-2bee48217b9d
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
79
Position Id
1800301

Mateusz Krajewski works as a Student Administrative Aide for Treasurer. They have served since 2017 (about a year). Mateusz earned $544 in 2018.