This site only

County's Homepage

Assessor's Homepage

DeKalb County Assessors List .pdf

Assessment & Property Tax Search

Nine Questions to a Fair Assessment

Board of Review & Appeals

Farmland Assessment Review

Farm Assessment Cards

Property Tax & Assessment Cycle

How to Find the Property Tax Index Number(PIN / Parcel Number)




News Releases

PTAB Information

Sales Listing

Senior Assessment Freeze

Annual Report

Chief County Assessment Office
Mapping Division

Administration Building - Sycamore Campus

110 East Sycamore Street, Sycamore, IL 60178

Hours: 8:30 a.m. – 4:30 p.m.

Phone: 815-895-7123 & 815-895-7270

FAX: 815-895-1684

Email Mapping:


What we do for DeKalb County:


  • Provide accurate, complete and timely entry of a significant portion of the DeKalb County's Property Tax System.
  • Interpret and label conveyance documents recorded in the DeKalb County Recorder's Office transmitted via transcript to our department for entry in the property tax system.
  • Use the recorded documents to update the digital cadastral base map. Assigning and retiring Permanent Index Numbers (PINS) on the maps and in the Property Tax System program with the ownership information. Updates are released to the GIS department for upload to the COMPASS GIS Map on the 2nd Tuesday following the recording month.
  • Perform Farm Land Assessment & Farm Land Preferential Assessments.

If you need assistance or have any questions, please contact us.

Link to Parcel Consolidation Form - Instructions on form


Assessment Map Pricing effective 1-1-2017

  Paper Copy   PDF or JPEG Format (via email, USB or CD)
  $10 per line map   $25 set up fee plus .50 per page
  $18 per composite (line and photo)    
  $25 for buffer zone, includes map and parcel list with site address, mailing address and owner names.   For GIS Data please contact GIS Analyst, Bruce Hamilton at 815- 899-0704 or

Cadastral Map - A map showing the boundaries of sub¬divisions of land, usually with the bearing and lengths thereof and the areas of the individual tracts, for the purposes of describing and recording ownership.