Millsboro DE ZIP Code
Millsboro city is located in Delaware State, Sussex County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Millsboro DE zip code by its streets and block numbers if we have some of the Millsboro streets loaded in our website
Millsboro Area Code is 302 and Time Zone is Eastern (GMT -05:00).
Millsboro Zip Code - Delaware
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Millsboro City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Millsboro ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Millsboro, Delaware.
The Millsboro Zip Code is 19966.
If you want to send a mail to Millsboro City, you should use the 19966 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Millsboro 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 19966 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Millsboro 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 Delaware.