Caldwell zip code
Zip code in Caldwell, NJ
The location Caldwell belongs to Essex County, state of New Jersey. Caldwell has 2 zip codes which you can see in the following table.
Caldwell is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: N Caldwell, North Caldwell, W Caldwell, West Caldwell.
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