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

Timothy Monahan

Deputy of Exemptions Invest Unit/County Assessor

2018 total comp

$31,917

Base pay: $31,917
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $31,917
Hire date: 2005-08-08
Middle name: W

Source-specific fields

Employee Identifier: 1a916cf8-2de0-44a2-a3da-b18b5a1d2727
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 6076
Office: 1040
Position Id: 1400177

Timothy Monahan holds the role of Deputy of Exemptions Invest Unit at County Assessor. Their tenure dates to 2005, about 13 years. In 2018, their total compensation was $31,917.

Raul Moreno

Manager of Records Management/County Assessor

2018 total comp

$31,905

Base pay: $31,905
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $31,905
Hire date: 1989-06-26

Source-specific fields

Employee Identifier: 9dbc0166-fe42-44f3-9fc9-ebdf7a8672da
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5162
Office: 1040
Position Id: 9500700

At County Assessor, Raul Moreno serves as a Manager of Records Management. Their tenure dates to 1989, about 29 years. Their 2018 pay totaled $31,905.

Margaret Papineau

Manager of Payroll-Assessor/County Assessor

2018 total comp

$31,763

Base pay: $31,763
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $31,763
Hire date: 1997-12-22
Middle name: A

Source-specific fields

Employee Identifier: 450366c6-a994-46bf-a0e9-e4aec75a6295
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5161
Office: 1040
Position Id: 9500708

Margaret Papineau is a Manager of Payroll-Assessor at County Assessor. Hired in 1997, they have about 21 years of service. 2018 total compensation came to $31,763.

Maura Kownacki

Communications Spec/Spokespers/County Assessor

2018 total comp

$31,669

Base pay: $31,669
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $31,669
Hire date: 1983-06-01
Middle name: J

Source-specific fields

Employee Identifier: b15df157-11df-4513-acac-961cf05fff4d
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5113
Office: 1040
Position Id: 9500710

Maura Kownacki works as a Communications Spec/Spokespers for County Assessor. Their tenure dates to 1983, about 35 years. Maura earned $31,669 in 2018.

Alfonso Sarro

Director of Residential Valuations/County Assessor

2018 total comp

$31,412

Base pay: $31,412
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $31,412
Hire date: 1990-07-05

Source-specific fields

Employee Identifier: eb3c47f7-6aa8-4d75-81ed-ada6fa3be8d6
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5191
Office: 1040
Position Id: 9500959

At County Assessor, Alfonso Sarro serves as a Director of Residential Valuations. Their tenure dates to 1990, about 28 years. Their 2018 pay totaled $31,412.

Khang Trinh

Director of Legal - Assessor/County Assessor

2018 total comp

$30,963

Base pay: $30,963
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $30,963
Hire date: 2001-03-01
Middle name: P

Source-specific fields

Employee Identifier: 8957e74c-3e59-458b-8cb3-2df922256075
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5189
Office: 1040
Position Id: 9500961

At County Assessor, Khang Trinh serves as a Director of Legal - Assessor. Hired in 2001, they have about 17 years of service. Their 2018 pay totaled $30,963.

Christopher Crowley

Chief Deputy Assessor-Assessor/County Assessor

2018 total comp

$30,924

Base pay: $30,924
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $30,924
Hire date: 2014-12-29
Middle name: M

Source-specific fields

Employee Identifier: bfb205e8-c470-4723-bbcd-d76da738efff
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5179
Office: 1040
Position Id: 9500705

Christopher Crowley holds the role of Chief Deputy Assessor-Assessor at County Assessor. They have served since 2014 (about 4 years). In 2018, their total compensation was $30,924.

Derrick Smith

Manager of App Develop/Assessor/County Assessor

2018 total comp

$30,739

Base pay: $30,739
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $30,739
Hire date: 2005-09-19

Source-specific fields

Employee Identifier: 18db14d6-00b5-4b58-82f7-ddf57b19b5a8
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5167
Office: 1040
Position Id: 9500950

Derrick Smith works as a Manager of App Develop/Assessor for County Assessor. They have served since 2005 (about 13 years). Derrick earned $30,739 in 2018.

Mark Dwyer

Director of Field Operations/County Assessor

2018 total comp

$30,661

Base pay: $30,661
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $30,661
Hire date: 1989-11-20
Middle name: J

Source-specific fields

Employee Identifier: d27d6a74-45e5-440c-8887-104f028072fa
Fiscal Period: 2018Q2
Fiscal Quarter: 2
Job Code: 5187
Office: 1040
Position Id: 9501055

Mark Dwyer holds the role of Director of Field Operations at County Assessor. Their tenure dates to 1989, about 29 years. In 2018, their total compensation was $30,661.