United States Postcode Database

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
13505	New York	Oneida	Utica	1
13599	New York	Oneida	Utica	1
13601	New York	Jefferson	Watertown	1
13602	New York	Jefferson	Fort Drum	1
13603	New York	Jefferson	Watertown	1
13605	New York	Jefferson	Adams	1
13606	New York	Jefferson	Adams Center	1
13607	New York	Jefferson	Alexandria Bay	1
13608	New York	Jefferson	Antwerp	1
13611	New York	Jefferson	Belleville	1
13612	New York	Jefferson	Black River	1
13613	New York	Saint Lawrence	Brasher Falls	1
13614	New York	Saint Lawrence	Brier Hill	1
13615	New York	Jefferson	Brownville	1
13616	New York	Jefferson	Calcium	1
13617	New York	Saint Lawrence	Canton	1
13618	New York	Jefferson	Cape Vincent	1
13619	New York	Jefferson	Carthage	1
13620	New York	Lewis	Castorland	1
13621	New York	Saint Lawrence	Chase Mills	1
13622	New York	Jefferson	Chaumont	1
13623	New York	Saint Lawrence	Chippewa Bay	1
13624	New York	Jefferson	Clayton	1
13625	New York	Saint Lawrence	Colton	1
13626	New York	Lewis	Copenhagen	1
13627	New York	Lewis	Deer River	1
13628	New York	Jefferson	Deferiet	1
13630	New York	Saint Lawrence	De Kalb Junction	1
13631	New York	Lewis	Denmark	1
13632	New York	Jefferson	Depauville	1
13633	New York	Saint Lawrence	De Peyster	1
13634	New York	Jefferson	Dexter	1
13635	New York	Saint Lawrence	Edwards	1
13636	New York	Jefferson	Ellisburg	1
13637	New York	Jefferson	Evans Mills	1
13638	New York	Jefferson	Felts Mills	1
13639	New York	Saint Lawrence	Fine	1
13640	New York	Jefferson	Wellesley Island	1
13641	New York	Jefferson	Fishers Landing	1
13642	New York	Saint Lawrence	Gouverneur	1
13643	New York	Jefferson	Great Bend	1
13645	New York	Saint Lawrence	Hailesboro	1
13646	New York	Saint Lawrence	Hammond	1
13647	New York	Saint Lawrence	Hannawa Falls	1
13648	New York	Lewis	Harrisville	1
13649	New York	Saint Lawrence	Helena	1
13650	New York	Jefferson	Henderson	1
13651	New York	Jefferson	Henderson Harbor	1
13652	New York	Saint Lawrence	Hermon	1
13654	New York	Saint Lawrence	Heuvelton	1

Page 105 of 853 · 42,605 postcode

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.