Historical Data: Annual USPS Data by Zip Code for residential addresses for five parishes - St. Bernard, Plaquemines, East Baton Rouge, Ascension, and Livingston -
for eleven years from 2005 through 2015 monthly USPS Data by Residential Zip Code
For five parishes from March 2016 to December 2017.

Ongoing Data: Monthly USPS Data by Zip Code for residential addresses for
five parishes - St. Bernard, Plaquemines, East Baton Rouge, Ascension, and Livingston - for two years beginning January 2018 through December 2019.