Rockville MD ZIP Code
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Rockville city is located in Maryland State, Montgomery County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Rockville MD zip code by its streets and block numbers if we have some of the Rockville streets loaded in our website
Rockville Area Code is 301/240 and Time Zone is Eastern (GMT -05:00).
Rockville Zip Code - Maryland
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rockville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rockville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rockville, Maryland.
The Rockville Zip Code is 20847, 20848, 20849, 20850, 20851, 20852, 20853, 20857.
If you want to send a mail to Rockville City, you should use the 20847, 20848, 20849, 20850, 20851, 20852, 20853, 20857 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rockville 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 20847, 20848, 20849, 20850, 20851, 20852, 20853, 20857 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rockville 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.