Agency file

County Assessor

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

The County Assessor is a government agency that delivers public services and programs within its jurisdiction.

In 2018, this agency had 271 employees with median total compensation of $17,235; the highest distinct record was $37,413.

Year: 2018
Total payroll: $5.1M
Employees: 271
Median total: $17,235
Highest record: $37,413

What the records show

Compensation analytics

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

Salary distribution

$354$33,293+

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

How 2018 total compensation is spread across the 271 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($17,235) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $18,863 (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

$12,136

$13,993

$17,235

$22,893

$29,267

The pay ladder for this department. Someone at the 90th percentile earns $29,267 — more than 90% of the department; the 10th percentile earns $12,136. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Support Staff Iii-Assessor

17 · $13,094

Residential Junior Analyst I

10 · $14,216

Taxpayer Information Junior Specialist

10 · $13,001

Taxpayer Information Senior Special I

8 · $15,286

Ic Valuations Group Leader III

6 · $25,709

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	$5.4M —	309 —	$16,363 —
2017	$5.4M ▲ 0.9%	286 ▼ 7.4%	$17,235 ▲ 5.3%
2018	$5.1M ▼ 5.3%	271 ▼ 5.2%	$17,235 ±0%

Record list

Employees

Page 1

Kathleen Flynn

Research Senior Analyst I/County Assessor

2018 total comp

$23,330

Base pay: $23,330
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $23,330
Hire date: 2003-07-14
Middle name: A

Source-specific fields

Employee Identifier: 80e59daf-0a11-45a3-b488-adfcfd9e46df
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5069
Office: 1040
Position Id: 9500953

Kathleen Flynn is a Research Senior Analyst I at County Assessor. Their tenure dates to 2003, about 15 years. 2018 total compensation came to $23,330.

Mai Nguyen

Programmer II - Assessor/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1994-01-10
Middle name: T

Source-specific fields

Employee Identifier: 80d551c7-c48b-4842-b7f2-0ab0e412cc8f
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5046
Office: 1040
Position Id: 9501001

At County Assessor, Mai Nguyen serves as a Programmer II - Assessor. Their tenure dates to 1994, about 24 years. Their 2018 pay totaled $22,893.

Kenneth Jacobowski

Residential Senior Field Inspector III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1994-12-01
Middle name: C

Source-specific fields

Employee Identifier: 7dfc5c8b-acdc-45dd-a196-8a4c573cc7e0
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5051
Office: 1040
Position Id: 9500896

Kenneth Jacobowski works as a Residential Senior Field Inspector III for County Assessor. They have served since 1994 (about 24 years). Kenneth earned $22,893 in 2018.

James Freeman

Ind Community Field Inspector III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1994-12-29
Middle name: B

Source-specific fields

Employee Identifier: c446197a-abff-48a9-ad2e-07f35c5d75be
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5043
Office: 1040
Position Id: 9501107

At County Assessor, James Freeman serves as a Ind Community Field Inspector III. Their tenure dates to 1994, about 24 years. Their 2018 pay totaled $22,893.

Jennifer O'Sullivan

Residential Senior Field Inspector III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1989-06-01
Middle name: L

Source-specific fields

Employee Identifier: 7755ba99-b6fb-4261-9d26-81c22a298435
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5051
Office: 1040
Position Id: 9500999

Jennifer O'Sullivan is a Residential Senior Field Inspector III at County Assessor. Hired in 1989, they have about 29 years of service. 2018 total compensation came to $22,893.

Margaret Monreal

Tec Rev Res Analyst V-Assessor/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1990-02-01

Source-specific fields

Employee Identifier: 6eda6596-7fdc-4914-a556-ba4a3b25db6f
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5363
Office: 1040
Position Id: 9501108

At County Assessor, Margaret Monreal serves as a Tec Rev Res Analyst V-Assessor. They have served since 1990 (about 28 years). Their 2018 pay totaled $22,893.

Timothy Sweeney

Residential Model Senior Analyst III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1987-11-06
Middle name: H

Source-specific fields

Employee Identifier: 943beb2f-2f54-48d9-898c-62627f6eec8c
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5049
Office: 1040
Position Id: 9500872

Timothy Sweeney holds the role of Residential Model Senior Analyst III at County Assessor. Their tenure dates to 1987, about 31 years. In 2018, their total compensation was $22,893.

Howard Whitt

Technician Rev Ind & Community Analyst III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1993-06-01
Middle name: L

Source-specific fields

Employee Identifier: ca2aea9f-cd68-4c37-9f1d-26b610def0de
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5057
Office: 1040
Position Id: 9930105

Howard Whitt is a Technician Rev Ind & Community Analyst III at County Assessor. Hired in 1993, they have about 25 years of service. 2018 total compensation came to $22,893.

Jeanette Thomas

Specialist Prop Senior Analyst III/County Assessor

2018 total comp

$22,893

Base pay: $22,893
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,893
Hire date: 1991-12-30
Middle name: M

Source-specific fields

Employee Identifier: f81e55db-f244-4507-a6c5-f987da726de2
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5052
Office: 1040
Position Id: 9501076

Jeanette Thomas is a Specialist Prop Senior Analyst III at County Assessor. Hired in 1991, they have about 27 years of service. 2018 total compensation came to $22,893.

Isalia Tull

Manager of Purch & Operations/County Assessor

2018 total comp

$22,853

Base pay: $22,853
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,853
Hire date: 2000-08-28

Source-specific fields

Employee Identifier: 7e6f2b8d-0df6-4881-8926-3975b341ada4
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5171
Office: 1040
Position Id: 9501124

Isalia Tull is a Manager of Purch & Operations at County Assessor. Hired in 2000, they have about 18 years of service. 2018 total compensation came to $22,853.

Charles Watkins

Assistant Manager of Technical Review/County Assessor

2018 total comp

$22,853

Base pay: $22,853
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,853
Hire date: 1998-07-09
Middle name: B

Source-specific fields

Employee Identifier: 330b6fdc-5178-4f3c-ba7d-6f182c2408e3
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5139
Office: 1040
Position Id: 9501096

Charles Watkins holds the role of Assistant Manager of Technical Review at County Assessor. Hired in 1998, they have about 20 years of service. In 2018, their total compensation was $22,853.

Teresa Chandler

Community Outreach Representative II/County Assessor

2018 total comp

$22,403

Base pay: $22,403
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $22,403
Hire date: 1999-02-16

Source-specific fields

Employee Identifier: 1b4cfeb3-fef4-4266-987e-4d44b16cf5f6
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6049
Office: 1040
Position Id: 9501070

At County Assessor, Teresa Chandler serves as a Community Outreach Representative II. They have served since 1999 (about 19 years). Their 2018 pay totaled $22,403.