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Peoria County GIS: Home

What is GIS?

GIS stands for geographic information systems and is a form of information technology that allows viewers to interactively explore and analyze geographic data in a map.  GIS involves using mapping software, hardware, and databases in order to create, maintain, and view maps.

To learn more about GIS please see:

Our Role

The mission of the Peoria County GIS Division is to provide customers with up-to-date geographic information.  GIS can be used in a variety of ways; improving communication, decision making, problem solving, data analysis, zoning, querying addresses and property tax information, and much more.  The Division strives to provide GIS services that are easily accessible and dynamic.

Interactive Maps for Mobile Devices

The Peoria County GIS Division has an interactive map application known as "Parcel Value GIS."  This mobile map application allows you to view tax assessment and sales information along with GIS parcel boundaries and aerial imagery.

**Currently, the Parcel Value GIS map application is not available in the App Store.  This application will be replaced with a new version of the Assessment Front Desk application on Friday, December 26th.

Peoria County GIS - Silverlight


Peoria County GIS - JavaScript/HTML5 (Coming Soon!)

Peoria County GIS - Silverlight

This is the Assessment Front Desk map application. This robust Geographic Information System (GIS) site will still meet your needs for comparable sales and assessment information as well as much more.  This requires Microsoft Silverlight Browser Add-on, Get it here** This application will be replaced on Friday, December 26th.




Peoria County GIS - JavaScript/HTML5 (New!)

A new version of the Assessment Front Desk application is now available for testing purposes only.  This new application uses JavaScript/HTML5 and can be used on any device or web browser.  Please use this application with caution as some information is not current.  **This application is scheduled to replace the current Silverlight Assessment Front Desk application and Parcel Value GIS iOS application on Friday, December 26th.


Click on any of the image thumbnails below to view maps by a specific category