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Illinois Map Collection
Illinois County Map:
This map shows Illinois's 102 counties. Also available is a detailed Illinois County Map with county seat cities.
Map of Illinois Cities:
This map shows many of Illinois's important cities and most important roads. Important north - south routes include: Interstate 39, Interstate 55, and Interstate 57. Important east - west routes include: Interstate 64, Interstate 70, Interstate 72, Interstate 74, Interstate 80, Interstate 88 and Interstate 90. We also have a more detailed Map of Illinois Cities.
Illinois Physical Map:
This Illinois shaded relief map shows the major physical features of the state. For other nice views of the state, see our Illinois Satellite image or the Illinois map by Google.
Illinois Rivers Map:
This map shows the major streams and rivers of Illinois and some of the larger lakes. Most of Illinois is in the Mississippi River Watershed and drainage leaves the state through the Green, Edwards, Illinois, Kaskaskia, Wabash, Ohio and Mississippi Rivers. A small portion of the state is in the St. Lawrence Watershed, where drainage enters Lake Michigan. Most of these lakes and streams can be clearly seen on the Illinois Satellite Image. We also have a page about Illinois water resources.
Illinois Elevation Map:
This is a generalized topographic map of Illinois. It shows elevation trends across the state. Detailed topographic maps and aerial photos of Illinois are available in the Geology.com store. See our state high points map to learn about Charles Mound at 1,235 feet - the highest point in Illinois. The lowest point is the Mississippi River at 279 feet.
Copyright information: The maps on this page were composed by Brad Cole of Geology.com. If you want to share these maps with others please link to this page. These maps are property of Geology.com and may not be used beyond our websites. They were created using data licensed from and copyright by Map Resources.