Country Information

CountryUnited States
ISO CodeUS / USA
LanguageEnglish
Total Records42,605

United States uses a numeric code of 5 (or 5+4) digits (e.g. 10001). ZIP Code (5 digits) with optional ZIP+4 extension.

This database currently holds 42,605 ZIP Codes ranging from 00501 to 99929, linked to 0 building and address records. Because a single ZIP Code can cover more than one locality or delivery point, the lookup below groups addresses by code and lets you drill into the individual records.

Postal codes matter well beyond mail delivery. Couriers, e-commerce checkout forms and address autocomplete tools rely on the ZIP Code to route a parcel and to verify that the stated address matches the code. Addresses here are organised as State → County → City. The code itself is structured as ZIP Code → ZIP+4 → Delivery Point, which is postal geography and not the same as the administrative hierarchy. When you look up a code here, treat the associated name as a reference point rather than a full postal address — always confirm the street and house number with the sender or recipient before shipping.

Data source: a third-party open dataset. This is an imported reference dataset, not a live government feed; CodeReff does not independently verify each record, so codes may have changed since the snapshot was taken. Use the search box to look up a specific code, or browse the paginated table below.

United States Postcode Data

42,605 postcode found

Postal Code State County City Records
13655 New York Franklin Hogansburg 1
13656 New York Jefferson La Fargeville 1
13657 New York Jefferson Limerick 1
13658 New York Saint Lawrence Lisbon 1
13659 New York Jefferson Lorraine 1
13660 New York Saint Lawrence Madrid 1
13661 New York Jefferson Mannsville 1
13662 New York Saint Lawrence Massena 1
13664 New York Saint Lawrence Morristown 1
13665 New York Jefferson Natural Bridge 1
13666 New York Saint Lawrence Newton Falls 1
13667 New York Saint Lawrence Norfolk 1
13668 New York Saint Lawrence Norwood 1
13669 New York Saint Lawrence Ogdensburg 1
13670 New York Saint Lawrence Oswegatchie 1
13671 New York Jefferson Oxbow 1
13672 New York Saint Lawrence Parishville 1
13673 New York Jefferson Philadelphia 1
13674 New York Jefferson Pierrepont Manor 1
13675 New York Jefferson Plessis 1
13676 New York Saint Lawrence Potsdam 1
13677 New York Saint Lawrence Pyrites 1
13678 New York Saint Lawrence Raymondville 1
13679 New York Jefferson Redwood 1
13680 New York Saint Lawrence Rensselaer Falls 1
13681 New York Saint Lawrence Richville 1
13682 New York Jefferson Rodman 1
13683 New York Saint Lawrence Rooseveltown 1
13684 New York Saint Lawrence Russell 1
13685 New York Jefferson Sackets Harbor 1
13687 New York Saint Lawrence South Colton 1
13690 New York Saint Lawrence Star Lake 1
13691 New York Jefferson Theresa 1
13692 New York Jefferson Thousand Island Park 1
13693 New York Jefferson Three Mile Bay 1
13694 New York Saint Lawrence Waddington 1
13695 New York Saint Lawrence Wanakena 1
13696 New York Saint Lawrence West Stockholm 1
13697 New York Saint Lawrence Winthrop 1
13699 New York Saint Lawrence Potsdam 1
13730 New York Chenango Afton 1
13731 New York Delaware Andes 1
13732 New York Tioga Apalachin 1
13733 New York Chenango Bainbridge 1
13734 New York Tioga Barton 1
13736 New York Tioga Berkshire 1
13737 New York Broome Bible School Park 1
13738 New York Cortland Blodgett Mills 1
13739 New York Delaware Bloomville 1
13740 New York Delaware Bovina Center 1

Postcodes by Region

Postcodes by City

Frequently Asked Questions

United States uses a numeric code of 5 (or 5+4) digits (e.g. 10001). ZIP Code (5 digits) with optional ZIP+4 extension.
Yes. United States postal codes are a plain numeric string, so a leading zero is part of the code itself. A code beginning with 0 must be written and stored with that zero — it is not the same as the same digits without it.
42,605 This database currently lists
The records are imported from a third-party open dataset, an open reference dataset. CodeReff does not independently verify each entry, so use the information as a reference rather than an official confirmation.
Enter a full or partial postal code, or a building or street name, in the search box above. You can also browse the paginated table and open any code to see its building and address records.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.