A new study found the life expectancy for every state in the country, with Pennsylvania ending up in the middle of the pack. The MoneyGeek study found that the average life expectancy in the Keystone State was 76-point-four, just above the national average of 76 years old. The states where residents live the longest are Hawaii and Massachusetts with an average life expectancy of 79. States at the bottom of the list include Mississippi with a life expectancy of 70, West Virginia with 71, Alabama, Louisiana and Kentucky with 72.