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
08518	New Jersey	Burlington	Florence	1
08520	New Jersey	Mercer	Hightstown	1
08525	New Jersey	Mercer	Hopewell	1
08526	New Jersey	Monmouth	Imlaystown	1
08527	New Jersey	Ocean	Jackson	1
08528	New Jersey	Somerset	Kingston	1
08530	New Jersey	Hunterdon	Lambertville	1
08533	New Jersey	Ocean	New Egypt	1
08534	New Jersey	Mercer	Pennington	1
08535	New Jersey	Monmouth	Perrineville	1
08536	New Jersey	Middlesex	Plainsboro	1
08540	New Jersey	Mercer	Princeton	1
08541	New Jersey	Mercer	Princeton	1
08542	New Jersey	Mercer	Princeton	1
08543	New Jersey	Mercer	Princeton	1
08544	New Jersey	Mercer	Princeton	1
08550	New Jersey	Mercer	Princeton Junction	1
08551	New Jersey	Hunterdon	Ringoes	1
08553	New Jersey	Somerset	Rocky Hill	1
08554	New Jersey	Burlington	Roebling	1
08555	New Jersey	Monmouth	Roosevelt	1
08556	New Jersey	Hunterdon	Rosemont	1
08557	New Jersey	Hunterdon	Sergeantsville	1
08558	New Jersey	Somerset	Skillman	1
08559	New Jersey	Hunterdon	Stockton	1
08560	New Jersey	Mercer	Titusville	1
08561	New Jersey	Mercer	Windsor	1
08562	New Jersey	Burlington	Wrightstown	1
08570	New Jersey	Middlesex	Cranbury	1
08601	New Jersey	Mercer	Trenton	1
08602	New Jersey	Mercer	Trenton	1
08603	New Jersey	Mercer	Trenton	1
08604	New Jersey	Mercer	Trenton	1
08605	New Jersey	Mercer	Trenton	1
08606	New Jersey	Mercer	Trenton	1
08607	New Jersey	Mercer	Trenton	1
08608	New Jersey	Mercer	Trenton	1
08609	New Jersey	Mercer	Trenton	1
08610	New Jersey	Mercer	Trenton	1
08611	New Jersey	Mercer	Trenton	1
08618	New Jersey	Mercer	Trenton	1
08619	New Jersey	Mercer	Trenton	1
08620	New Jersey	Mercer	Trenton	1
08625	New Jersey	Mercer	Trenton	1
08628	New Jersey	Mercer	Trenton	1
08629	New Jersey	Mercer	Trenton	1
08638	New Jersey	Mercer	Trenton	1
08640	New Jersey	Burlington	Trenton	1
08641	New Jersey	Burlington	Trenton	1
08645	New Jersey	Mercer	Trenton	1

Page 63 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.