Cos Cob CT ZIP Code

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

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

Cos Cob Area Code is 203 and Time Zone is Eastern (GMT -05:00).

Cos Cob Zip Code - Connecticut

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

The Cos Cob Zip Code is 06807.

If you want to send a mail to Cos Cob City, you should use the 06807 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Cos Cob 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 06807 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Cos Cob 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.

Cos Cob, Connecticut - MAP

What is the Cos Cob Zip Code?

The Cos Cob Zip Code in Connecticut is 06807.

ZIP Plus 4 Cos Cob - US Streets Zip Codes

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

Search Cos Cob Zip Code

What is the zip code for Cos Cob CT?


Cos Cob, Connecticut - US Zip Code

Cos Cob ZIP Code Lookup

06807 Zip Code File:
Zip Code: 06807,
City: Cos Cob
Cos Cob Area Code: 203
Cos Cob, CT - Time Zone: Eastern (GMT -05:00)
County: Fairfield
City Alias: Cos Cob
State: Connecticut
State Abb: CT

Connecticut Zip+4 - Nearby Cos Cob Cities

Cities near Cos Cob in Connecticut
(straight line)

View more Connecticut zip codes