According to Census population data, the Illinois population is the fifth-largest in the United States. The largest cities in Illinois (including Chicago, Joliet and Naperville) offer a mix of ...

A number of Illinois communities shrank in population throughout a recent ... could lose its longstanding spot as America's third-largest city if the trend continues. However, some Chicago-area ...

As Peoria experiences considerable development and economic growth, here’s a look back at the city’s roots and early days. See the historical photos.

According to Census population data, the Illinois population is the fifth-largest in the United States. The largest cities in Illinois (including Chicago, Joliet and Naperville) offer a mix of ...