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
96914 Guam Guam Yona 1
96915 Guam Guam Santa Rita 1
96916 Guam Guam Merizo 1
96917 Guam Guam Inarajan 1
96918 Guam Guam Umatac 1
96919 Guam Guam Agana Heights 1
96921 Guam Guam Barrigada 1
96922 Guam Guam Asan 1
96923 Guam Guam Mangilao 1
96925 Guam Guam Piti 1
96926 Guam Guam Sinajana 1
96927 Guam Guam Mongmong 1
96928 Guam Guam Agat 1
96929 Guam Guam Yigo 1
96930 Guam Guam Talofofo 1
96931 Guam Guam Tamuning 1
96932 Guam Guam Hagatna 1
96940 Palau Palau Palau 1
96941 Federated States of Micronesia Federated States of Micro Pohnpei 1
96942 Federated States of Micronesia Federated States of Micro Chuuk 1
96943 Federated States of Micronesia Federated States of Micro Yap 1
96944 Federated States of Micronesia Federated States of Micro Kosrae 1
96950 Northern Mariana Islands Northern Mariana Islands Saipan 1
96951 Northern Mariana Islands Northern Mariana Islands Rota 1
96952 Northern Mariana Islands Northern Mariana Islands Tinian 1
96960 Marshall Islands Marshall Islands Majuro 1
96970 Marshall Islands Marshall Islands Ebeye 1
97001 Oregon Wasco Antelope 1
97002 Oregon Marion Aurora 1
97004 Oregon Clackamas Beavercreek 1
97005 Oregon Washington Beaverton 1
97006 Oregon Washington Beaverton 1
97007 Oregon Washington Beaverton 1
97008 Oregon Washington Beaverton 1
97009 Oregon Clackamas Boring 1
97010 Oregon Multnomah Bridal Veil 1
97011 Oregon Clackamas Brightwood 1
97013 Oregon Clackamas Canby 1
97014 Oregon Hood River Cascade Locks 1
97015 Oregon Clackamas Clackamas 1
97016 Oregon Columbia Clatskanie 1
97017 Oregon Clackamas Colton 1
97018 Oregon Columbia Columbia City 1
97019 Oregon Multnomah Corbett 1
97020 Oregon Marion Donald 1
97021 Oregon Wasco Dufur 1
97022 Oregon Clackamas Eagle Creek 1
97023 Oregon Clackamas Estacada 1
97024 Oregon Multnomah Fairview 1
97026 Oregon Marion Gervais 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.