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
73722 Oklahoma Alfalfa Burlington 1
73724 Oklahoma Blaine Canton 1
73726 Oklahoma Alfalfa Carmen 1
73727 Oklahoma Garfield Carrier 1
73728 Oklahoma Alfalfa Cherokee 1
73729 Oklahoma Major Cleo Springs 1
73730 Oklahoma Garfield Covington 1
73731 Oklahoma Woods Dacoma 1
73733 Oklahoma Garfield Douglas 1
73734 Oklahoma Kingfisher Dover 1
73735 Oklahoma Garfield Drummond 1
73736 Oklahoma Garfield Fairmont 1
73737 Oklahoma Major Fairview 1
73738 Oklahoma Garfield Garber 1
73739 Oklahoma Alfalfa Goltry 1
73741 Oklahoma Alfalfa Helena 1
73742 Oklahoma Kingfisher Hennessey 1
73743 Oklahoma Garfield Hillsdale 1
73744 Oklahoma Blaine Hitchcock 1
73746 Oklahoma Woods Hopeton 1
73747 Oklahoma Major Isabella 1
73749 Oklahoma Alfalfa Jet 1
73750 Oklahoma Kingfisher Kingfisher 1
73753 Oklahoma Garfield Kremlin 1
73754 Oklahoma Garfield Lahoma 1
73755 Oklahoma Blaine Longdale 1
73756 Oklahoma Kingfisher Loyal 1
73757 Oklahoma Noble Lucien 1
73758 Oklahoma Grant Manchester 1
73759 Oklahoma Grant Medford 1
73760 Oklahoma Major Meno 1
73761 Oklahoma Grant Nash 1
73762 Oklahoma Kingfisher Okarche 1
73764 Oklahoma Kingfisher Omega 1
73766 Oklahoma Grant Pond Creek 1
73768 Oklahoma Major Ringwood 1
73770 Oklahoma Blaine Southard 1
73771 Oklahoma Grant Wakita 1
73772 Oklahoma Blaine Watonga 1
73773 Oklahoma Garfield Waukomis 1
73801 Oklahoma Woodward Woodward 1
73802 Oklahoma Woodward Woodward 1
73832 Oklahoma Ellis Arnett 1
73834 Oklahoma Harper Buffalo 1
73835 Oklahoma Dewey Camargo 1
73838 Oklahoma Major Chester 1
73840 Oklahoma Ellis Fargo 1
73841 Oklahoma Woodward Fort Supply 1
73842 Oklahoma Woods Freedom 1
73843 Oklahoma Ellis Gage 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.