McLean County Public Internet Mapping GIS Site Launch Page

This web site allows you to look at spatially referenced data. When using it, you can click on layers such as streets, buildings, and subdivision boundaries, to name a few. Some map features display automatically and will turn on and off depending on how far you are zoomed in or out on the map. To become familiar with all the tools and functionality, please review the help menus.

Step 1: Learn to Use the Maps

We recommend looking at the following prior to launching a map:


		Quick tutorial or help system (This and more help is also available within the application.) Developer copyright policy and disclaimer
		Step 2: Read the Disclaimer and Launch the Map Disclaimer: Option A: General Purpose Map Viewer - Click to Accept Disclaimer and Launch Now featuring 2006 Topographic data including 10ft Major Contours, 2ft Minor Contours, and Spot Elevations. Show Me Help Option B: Plat Map Viewer - Click to Accept Disclaimer and Launch Featuring parcel and lot dimensions and custom annotations. Show Me Help Option C: New Election Map Viewer - Click to Accept Disclaimer and Launch Now featuring election related map features including Precincts, Wards, Polling Places, County Board Districts, Representative, Congressional, and Legislative Districts. *Note:* If you use anti-popup software, we recommend that you temporarily disable it prior to using this site. This application works best with your screen resolution set at 1024 x 768 or larger.