Only one parish, Cameron, had more than the national average for the number of years a person is expected to live. See how ...

In some states and counties, data shows an even larger portion of the population may be prone ... Below is an interactive map with the parish-by-parish self-reported excessive drinking data.

However, the data also show that nearly two-thirds of Louisiana parishes saw a population decline. Allison Plyer, chief demographer for New Orleans-based nonprofit The Data Center, cautioned that ...