There is also another type of postal code, the ZIP + 4 code. According to unitedstateszipcodes.org, the ZIP + 4 was established in 1983 and identifies an even more specific location within a ZIP code.

Lake Charles, LA (KPLC) - The Louisiana District of the United States Postal Service announced Tuesday that mail delivery and retail operations in the 705-708 3-Digit ZIP Code areas have resumed. The ...