Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Nassau County Address Data
Businesses Addresses: 50,241
PO Box Addresses: 15,680
Residential Addresses: 453,343
Multi-Family Addresses: 49,432
Single Family Addresses: 401,486
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Map of Nassau County, NY ZIP Codes With Actual (Default) City Names