New London County Connecticut ZIP Codes - Map and Full List

New London County Connecticut is covered by a total of 38 ZIP Codes. There are 3 ZIP Codes in New London County that extend into adjacent counties (Middlesex County, and Windham County). Of the ZIP codes within or partially within New London County there are 29 Standard ZIP Codes and 9 PO Box ZIP Codes.

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New London County Connecticut ZIP Code Map

Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of New London County and can be turned on and off. Each type of postal code can also be turned on and off.

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