Ipswich SD ZIP Code
Ipswich city is located in South Dakota State, Edmunds County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Ipswich SD zip code by its streets and block numbers if we have some of the Ipswich streets loaded in our website
Ipswich Area Code is 605 and Time Zone is Central (GMT -06:00).
Ipswich Zip Code - South Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Ipswich City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Ipswich ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Ipswich, South Dakota.
The Ipswich Zip Code is 57451.
If you want to send a mail to Ipswich City, you should use the 57451 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Ipswich 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 57451 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Ipswich 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 South Dakota.