Cook County, Illinois / Office Inspector General

Agency file

Office Inspector General

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

The Office Inspector General is a government agency that delivers public services and programs within its jurisdiction.

In 2018, this agency had 17 employees with median total compensation of $26,673; the highest distinct record was $43,692.

Year: 2018
Total payroll: $435.1K
Employees: 17
Median total: $26,673
Highest record: $43,692

What the records show

Compensation analytics

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

Salary distribution

$7,892$43,692+

Hover a bar for its range; click to filter the list below.

How 2018 total compensation is spread across the 17 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($26,673) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $25,597 (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

$19,002

$22,403

$26,673

$28,585

$31,426

The pay ladder for this department. Someone at the 90th percentile earns $31,426 — more than 90% of the department; the 10th percentile earns $19,002. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Investigator III

4 · $22,628

Investigator V

3 · $27,077

Deputy Inspector General

2 · $31,426

Investigator Iv-Oiig

2 · $26,943

Investigator IV Financial

2 · $26,153

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	$523.2K —	21 —	$25,633 —
2017	$468.9K ▼ 10.4%	19 ▼ 9.5%	$26,093 ▲ 1.8%
2018	$435.1K ▼ 7.2%	17 ▼ 10.5%	$26,673 ▲ 2.2%

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.

Dcpc District of Columbia63% match
State Board of Veterinary Medical Examin Texas63% match
Oig Office of Inspector General City of Philadelphia62% match
Civilian Complaint Review Bd New York City58% match
Labor License & Regulation South Carolina48% match
Banking and Insurance New Jersey44% match

Record list

Employees

Page 1

Nicole Nelson

Investigator IV Financial/Office Inspector General

2016 total comp

$8,625

Base pay: $8,625
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $8,625
Hire date: 2014-02-24
Middle name: K

Source-specific fields

Employee Identifier: 215d6b3b-9a9c-4d9f-966e-4bb35414ecb4
Fiscal Period: 2016Q1
Fiscal Quarter: 1
Job Code: 149
Office: 1080
Position Id: 1100439

Nicole Nelson holds the role of Investigator IV Financial at Office Inspector General. Their tenure dates to 2014, about 2 years. In 2016, their total compensation was $8,625.

Andrew Jester

Investigator V/Office Inspector General

2018 total comp

$7,892

Base pay: $7,892
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $7,892
Hire date: 1993-07-14
Middle name: T

Source-specific fields

Employee Identifier: 8f364f19-c796-4ad2-86c8-d20e1a221ab4
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 642
Office: 1080
Position Id: 800041

Andrew Jester works as a Investigator V for Office Inspector General. Their tenure dates to 1993, about 25 years. Andrew earned $7,892 in 2018.