Supervisor of Assessments


Monday - Friday
 8:30 a.m. - 5 p.m

Main Phone #: 


Dave Ryan

Supervisor of Assessments

The mission of the Peoria County Supervisor of Assessment’s Office is to provide the public with top quality services by helping the public access information and understand the property assessment process. The Supervisor of Assessment’s Office applies the property tax law with integrity, efficiency and fairness.

The Peoria County Supervisor of Assessment’s Office continually strives to be the lead property assessment agency in Illinois by working creatively through utilizing technology and serving the public in a courteous, professional and transparent manner. Customer service is our top priority, so please feel free to email and let me know how we are doing.

FY 2019 Budget: $647,530 

Peoria County Board of Review Exam:

The Department of Revenue, Springfield, Illinois, has fixed April 25th as the date for an examination for the position of Board of Review member, pursuant to 35 ILCS 200/6-10 of the Property Tax Code.

The examination will be held at the Peoria County Courthouse located at 324 Main St. Peoria, IL Room 402 at 10:00 a.m. The examination and facilities will be accessible to persons with disabilities in compliance with state and federal laws. Persons in need of special accommodations should notify Colleen Whalen at 309 495-4630, by April 18th to make the necessary arrangements.

Application forms and information may be obtained by contacting Dave Ryan or Colleen Whalen at the Peoria County Courthouse, located at 324 Main St. Room 301 Peoria, IL 61602 during the hours of 8:30 to 5:00 Monday thru Friday. Individuals interested in taking the examination should contact Colleen Whalen at 309 495-4630 by 10:00 a.m. of the day before the examination to register.

FOIA Officers:

Colleen Whalen
Kristie Bigliazzi

East Building