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Cook County, Illinois / Sixth District

Agency file

Sixth District

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

The Sixth District is a government agency that delivers public services and programs within its jurisdiction.

In 2018, this agency had 5 employees with median total compensation of $19,385; the highest distinct record was $22,885.

Year
2018
Total payroll
$91.6K
Employees
5
Median total
$19,385
Highest record
$22,885

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 5 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($19,385) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

  • Base — $18,315 (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
$10,769
$18,846
$19,385
$19,692
$22,885

The pay ladder for this department. Someone at the 90th percentile earns $22,885 — more than 90% of the department; the 10th percentile earns $10,769. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Aide to the Commissioner II
2 · $19,538
Commissioners Staff
2 · $14,808
County Commissioner
1 · $22,885

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
$96.4K
—
6
—
$16,796
—
2017
$114.3K
▲ 18.6%
9
▲ 50.0%
$14,544
▼ 13.4%
2018
$91.6K
▼ 19.9%
5
▼ 44.4%
$19,385
▲ 33.3%

Record list

Employees

Page 1

John O'Sullivan

Aide to the Commissioner II/Sixth District

2018 total comp
$19,692
Base pay
$19,692
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$19,692
Hire date
1987-01-26
Middle name
M

Source-specific fields

Employee Identifier
a0d41d9a-a2e5-4081-b6d6-30e7245a43e3
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
6792
Office
1086
Position Id
9500388

John O'Sullivan holds the role of Aide to the Commissioner II at Sixth District. They have served since 1987 (about 31 years). In 2018, their total compensation was $19,692.

Collin Gruca

Aide to the Commissioner II/Sixth District

2018 total comp
$19,385
Base pay
$19,385
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$19,385
Hire date
2017-04-24
Middle name
S

Source-specific fields

Employee Identifier
7b45ca52-de17-4ea7-918e-92a193e5f2db
Fiscal Period
2018Q2
Fiscal Quarter
2
Job Code
6792
Office
1086
Position Id
9500387

At Sixth District, Collin Gruca serves as a Aide to the Commissioner II. Hired in 2017, they have about a year of service. Their 2018 pay totaled $19,385.