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Old Mastic, New York ZIP Code - United States

The location Old Mastic, NY has an unique ZIP Codes assigned (11951). Although this location name (Old Mastic, NY) is set as NOT ACCEPTABLE (meaning it is an inadequate city name). So looking for the ZIP Code 11951 we have found out the following locations (for your mailing or form filling you should use an ACCEPTABLE or PRIMARY location name).

City Name ZIP Code ZIP Type Estimated Population
Mastic Beach, NY PRIMARY Status defition 11951 STANDARD 10.520

Postal Zone of Old Mastic, NY - USA

Old Mastic, New York ZIP Code - United States
ZIP Code Tabulation Areas (ZCTAs) for Old Mastic, NY ZIP Code. A ZCTA is a generalized area representation of the american ZIP Code service area.

Old Mastic, NY belongs to which county?

Old Mastic, NY belongs to Suffolk county. Check the list of Suffolk county ZIP Code.

ZIP Code New York

Check the list of New York ZIP Code.

ZIP Code United States

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Status Definitions
  • PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
  • ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
  • IMPROPER/NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
  • UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.