Chicagoland is a term that carries several common misconceptions. It is believed by many people (usually living in the northern and western suburbs of
Chicago) that Chicagoland, or more formally the "
Chicago Metropolitan Area" is restricted to only the areas within the Illinois state boundaries. However, due to the fact that a metro area is based on cultural and employment patterns and similarities, this is simply not true.
Because
Chicago is such a large city on its own, it boasts a much wider metro area than most others in the country, save for
New York and Los Angeles. Dating back to 1950, when statistical analysis for metro areas emerged, Chicagoland included several counties in Illinois (Cook and the adjacent counties such as Will, Lake, and DuPage) as well as Lake County in Indiana which to many a-Chicagoan's surprise physically borders the city. Over the years, due to
Chicago's expansion, the definition has also widened to include four more Indiana counties (Porter, LaPorte, Newton, and
Jasper) as well as Kenosha County in Wisconsin.
This phenomena is not unique to
Chicago, and examples can be seen all throughout the U.S. New York City - New Jersey,
St. Louis - southwestern Illinois, Kansas City - western Missouri, and many more. So before you let silly biases like state lines get in the way, remember to check your facts!
As I mentioned above, a metro area is not determined by state lines, but by a shared culture. For example, the types of cuisine unique to
Chicago can be found all around Chicagoland. Things like the Chicago Hotdog, the Maxwell
St. Polish, Italian beef sandwiches, deep dish
pizza, and etc. Other examples include the commuter culture, or the people who travel into the city for
work; favorite sports teams; dialects and slang; time zones (Northwest Indiana shares a time zone with the rest of Chicagoland, and not the rest of the state).