773 Area Code is part of 0 counties in the state of Illinois. There are around 2 cities in the 773 area code. The 773 area code is located in the EDT timezone. Illinois has an avarage population of 12,947,252 spread between the coordinates of +40.349457 Latitude and -88.986137 Longitude.
Below you will find more info about 773 Area Code and also zip codes, counties, cities and the post offices that belong to this Area Code.