Bay Saint Louis MS ZIP Code

Bay Saint Louis city is located in Mississippi State, Hancock County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Bay Saint Louis MS zip code by its streets and block numbers if we have some of the Bay Saint Louis streets loaded in our website

Bay Saint Louis Area Code is 228 and Time Zone is Central (GMT -06:00).



Bay Saint Louis Zip Code - Mississippi

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Bay Saint Louis City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Bay Saint Louis ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Bay Saint Louis, Mississippi.

The Bay Saint Louis Zip Code is 39520, 39521.



If you want to send a mail to Bay Saint Louis City, you should use the 39520, 39521 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Bay Saint Louis ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 39520, 39521 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Bay Saint Louis city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Mississippi.


Bay Saint Louis, Mississippi - MAP




What is the Bay Saint Louis Zip Code?

The Bay Saint Louis Zip Code in Mississippi is 39520, 39521.


ZIP Plus 4 Bay Saint Louis - US Streets Zip Codes

By pressing keys ctrol + F you can search Bay Saint Louis zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Bay Saint Louis Zip Code

What is the zip code for Bay Saint Louis MS?

39520, 39521

Bay Saint Louis, Mississippi - US Zip Code



Bay Saint Louis ZIP Code Lookup

39520, 39521 Zip Code File:
Zip Code: 39520, 39521,
City: Bay Saint Louis
Bay Saint Louis Area Code: 228
Bay Saint Louis, MS - Time Zone: Central (GMT -06:00)
County: Hancock
City Alias: Bay St Louis, Mississippi Test Facility, Stennis Ctr, Bayside Park, Stennis Space Center, Waveland, Bay Saint Louis, St Louis, Bay St Louis, Bay Saint Louis
State: Mississippi
State Abb: MS



Mississippi Zip+4 - Nearby Bay Saint Louis Cities

Cities near Bay Saint Louis in Mississippi
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