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
73491 Oklahoma Stephens Velma 1
73501 Oklahoma Comanche Lawton 1
73502 Oklahoma Comanche Lawton 1
73503 Oklahoma Comanche Fort Sill 1
73505 Oklahoma Comanche Lawton 1
73506 Oklahoma Comanche Lawton 1
73507 Oklahoma Comanche Lawton 1
73520 Oklahoma Jefferson Addington 1
73521 Oklahoma Jackson Altus 1
73522 Oklahoma Jackson Altus 1
73523 Oklahoma Jackson Altus Air Force Base 1
73526 Oklahoma Jackson Blair 1
73527 Oklahoma Comanche Cache 1
73528 Oklahoma Comanche Chattanooga 1
73529 Oklahoma Stephens Comanche 1
73530 Oklahoma Tillman Davidson 1
73531 Oklahoma Cotton Devol 1
73532 Oklahoma Jackson Duke 1
73533 Oklahoma Stephens Duncan 1
73534 Oklahoma Stephens Duncan 1
73536 Oklahoma Stephens Duncan 1
73537 Oklahoma Jackson Eldorado 1
73538 Oklahoma Comanche Elgin 1
73539 Oklahoma Jackson Elmer 1
73540 Oklahoma Comanche Faxon 1
73541 Oklahoma Comanche Fletcher 1
73542 Oklahoma Tillman Frederick 1
73543 Oklahoma Comanche Geronimo 1
73544 Oklahoma Harmon Gould 1
73546 Oklahoma Tillman Grandfield 1
73547 Oklahoma Greer Granite 1
73548 Oklahoma Jefferson Hastings 1
73549 Oklahoma Jackson Headrick 1
73550 Oklahoma Harmon Hollis 1
73551 Oklahoma Tillman Hollister 1
73552 Oklahoma Comanche Indiahoma 1
73553 Oklahoma Tillman Loveland 1
73554 Oklahoma Greer Mangum 1
73555 Oklahoma Tillman Manitou 1
73556 Oklahoma Jackson Martha 1
73557 Oklahoma Comanche Medicine Park 1
73558 Oklahoma Comanche Meers 1
73559 Oklahoma Kiowa Mountain Park 1
73560 Oklahoma Jackson Olustee 1
73561 Oklahoma Jefferson Oscar 1
73562 Oklahoma Cotton Randlett 1
73564 Oklahoma Kiowa Roosevelt 1
73565 Oklahoma Jefferson Ryan 1
73566 Oklahoma Kiowa Snyder 1
73567 Oklahoma Comanche Sterling 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.