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
08820	New Jersey	Middlesex	Edison	1
08821	New Jersey	Somerset	Flagtown	1
08822	New Jersey	Hunterdon	Flemington	1
08823	New Jersey	Somerset	Franklin Park	1
08824	New Jersey	Middlesex	Kendall Park	1
08825	New Jersey	Hunterdon	Frenchtown	1
08826	New Jersey	Hunterdon	Glen Gardner	1
08827	New Jersey	Hunterdon	Hampton	1
08828	New Jersey	Middlesex	Helmetta	1
08829	New Jersey	Hunterdon	High Bridge	1
08830	New Jersey	Middlesex	Iselin	1
08831	New Jersey	Middlesex	Monroe Township	1
08832	New Jersey	Middlesex	Keasbey	1
08833	New Jersey	Hunterdon	Lebanon	1
08834	New Jersey	Hunterdon	Little York	1
08835	New Jersey	Somerset	Manville	1
08836	New Jersey	Somerset	Martinsville	1
08837	New Jersey	Middlesex	Edison	1
08840	New Jersey	Middlesex	Metuchen	1
08844	New Jersey	Somerset	Hillsborough	1
08846	New Jersey	Middlesex	Middlesex	1
08848	New Jersey	Hunterdon	Milford	1
08850	New Jersey	Middlesex	Milltown	1
08852	New Jersey	Middlesex	Monmouth Junction	1
08853	New Jersey	Somerset	Neshanic Station	1
08854	New Jersey	Middlesex	Piscataway	1
08855	New Jersey	Middlesex	Piscataway	1
08857	New Jersey	Middlesex	Old Bridge	1
08858	New Jersey	Hunterdon	Oldwick	1
08859	New Jersey	Middlesex	Parlin	1
08861	New Jersey	Middlesex	Perth Amboy	1
08862	New Jersey	Middlesex	Perth Amboy	1
08863	New Jersey	Middlesex	Fords	1
08865	New Jersey	Warren	Phillipsburg	1
08867	New Jersey	Hunterdon	Pittstown	1
08868	New Jersey	Hunterdon	Quakertown	1
08869	New Jersey	Somerset	Raritan	1
08870	New Jersey	Hunterdon	Readington	1
08871	New Jersey	Middlesex	Sayreville	1
08872	New Jersey	Middlesex	Sayreville	1
08873	New Jersey	Somerset	Somerset	1
08875	New Jersey	Somerset	Somerset	1
08876	New Jersey	Somerset	Somerville	1
08877	New Jersey	Middlesex	South River	1
08878	New Jersey	Middlesex	South Amboy	1
08879	New Jersey	Middlesex	South Amboy	1
08880	New Jersey	Somerset	South Bound Brook	1
08882	New Jersey	Middlesex	South River	1
08884	New Jersey	Middlesex	Spotswood	1
08885	New Jersey	Hunterdon	Stanton	1

Page 65 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.