A map of Illinois showing all cities is available online on MapQuest.com. Enter "Illinois" into the website's search engine, then click the search button to pull up the map. Although the map shows all cities, users need to utilize a zoom tool to zoom in and view smaller cities.
By zooming in even more, viewers can see streets and features within cities and towns. The Illinois map also shows bodies of water, points of interest and landscapes. By clicking the satellite view icon, users can see aerial photographs of cities and towns. MapQuest allows users to print its maps for free.