Haddam CT ZIP Code

Haddam city is located in Connecticut State, Middlesex County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Haddam CT zip code by its streets and block numbers if we have some of the Haddam streets loaded in our website


Haddam Area Code is 860 and Time Zone is Eastern (GMT -05:00).



Haddam Zip Code - Connecticut

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Haddam City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Haddam ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Haddam, Connecticut.


The Haddam Zip Code is 06438.



If you want to send a mail to Haddam City, you should use the 06438 Zip Code.


In 1983, the U.S. Postal Service introduced an expanded Haddam 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 06438 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Haddam 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.


Haddam, Connecticut - MAP



What is the Haddam Zip Code?

The Haddam Zip Code in Connecticut is 06438.


ZIP Plus 4 Haddam - US Streets Zip Codes

By pressing keys ctrol + F you can search Haddam zip codes by its streets, highways, and know the ZIP+4 US ZIP Code




Search Haddam Zip Code

What is the zip code for Haddam CT?

06438

Haddam, Connecticut - US Zip Code



Haddam ZIP Code Lookup

06438 Zip Code File:
Zip Code: 06438,
City: Haddam
Haddam Area Code: 860
Haddam, CT - Time Zone: Eastern (GMT -05:00)
County: Middlesex
City Alias: Haddam
State: Connecticut
State Abb: CT



Connecticut Zip+4 - Nearby Haddam Cities

Cities near Haddam in Connecticut
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