Saint Clair MO ZIP Code
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Saint Clair city is located in Missouri State, Franklin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Saint Clair MO zip code by its streets and block numbers if we have some of the Saint Clair streets loaded in our website
Saint Clair Area Code is 636 and Time Zone is Central (GMT -06:00).
Saint Clair Zip Code - Missouri
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Saint Clair City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Saint Clair ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Saint Clair, Missouri.
The Saint Clair Zip Code is 63077.
If you want to send a mail to Saint Clair City, you should use the 63077 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Saint Clair 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 63077 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Saint Clair 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 Missouri.