When it comes to the states with the most households that aren't using landlines anymore, numbers one and two are Arkansas and Mississippi.

According to the National Center for Health Statistics, 35.2% of people ages 18 and older in Arkansas live in households that don't have a landline.  For Mississippi, it's 35.1%.

The rest of the states where more than 30% of people are in non-landline households are:  Texas, North Dakota, Idaho, Kentucky, Oregon, Colorado, Nebraska, and Oklahoma.

As for people who are still using their home phones, New Jersey and Rhode Island are the leaders.  Only 12.8% of people in each of those states lives in a household without a landline.

The rest of the states where less than 20% of people live without landlines are:  Connecticut, South Dakota, New Hampshire, Delaware, Pennsylvania, Massachusetts, New York, California, Maryland, Montana, and Alaska. 

Via (USA Today)