GIS and Maps

What is GIS?

A Geographic Information System (GIS) is defined as using different types of geographical data to analyze, visualize, model, digitize, store, and manage information to create maps and reports that can be viewed on a paper map, digital map, or online interactive map.

GIS Applications

County of McLean GIS Opens in new window

The goal of the GIS program is to educate the public about McLean County’s activities and projects using maps. To view County GIS maps and apps, visit the County of McLean GIS website.

McGIS Logo and link Opens in new window




The McLean County GIS Consortium (members: McLean County, City of Bloomington, and the Town of Normal) provides GIS applications, maps, and data downloads. To view these products, visit the McGIS website.

Map Products

County road maps are available to purchase from the County. Map production requires an hourly fee. For inquiries email the GIS staff or call (309) 888-5043.

Disclaimer:  The information displayed on McLean County maps and apps is for informational purposes only.  Although it is believed to be accurate at the time of production, McLean County does not warrant that the information displayed is error-free.  The user acknowledges and agrees that the use of maps and apps is at the sole risk of the user.