One-third of Illinois residents still have a landline phone.
The big picture: A new study from the research firm Chamber of Commerce shows which states have been slowest to ditch their landlines to go all mobile.
By the numbers: More than 3 million people in Illinois still have landlines, which is the same number of people nationwide who have no phone at all.
- 70% of American adults rely solely on their cellphone.
- 40% of adults were landline-only in 2002; that number is now down to 1%.
