Old Lyme CT ZIP Code
Old Lyme city is located in Connecticut State, New London County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Old Lyme CT zip code by its streets and block numbers if we have some of the Old Lyme streets loaded in our website
Old Lyme Area Code is 860 and Time Zone is Eastern (GMT -05:00).
Old Lyme Zip Code - Connecticut
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Old Lyme City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Old Lyme ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Old Lyme, Connecticut.
The Old Lyme Zip Code is 06371.
If you want to send a mail to Old Lyme City, you should use the 06371 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Old Lyme 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 06371 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Old Lyme 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 Connecticut.