Simpsonville MD ZIP Code
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Simpsonville city is located in Maryland State, Howard County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Simpsonville MD zip code by its streets and block numbers if we have some of the Simpsonville streets loaded in our website
Simpsonville Area Code is 443/410/240/301/667 and Time Zone is Eastern (GMT -05:00).
Simpsonville Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Simpsonville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Simpsonville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Simpsonville, Maryland.
The Simpsonville Zip Code is 21150.
If you want to send a mail to Simpsonville City, you should use the 21150 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Simpsonville 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 21150 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Simpsonville 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 Maryland.