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
72422 Arkansas Clay Corning 1
72424 Arkansas Clay Datto 1
72425 Arkansas Greene Delaplaine 1
72426 Arkansas Mississippi Dell 1
72427 Arkansas Craighead Egypt 1
72428 Arkansas Mississippi Etowah 1
72429 Arkansas Poinsett Fisher 1
72430 Arkansas Clay Greenway 1
72431 Arkansas Jackson Grubbs 1
72432 Arkansas Poinsett Harrisburg 1
72433 Arkansas Lawrence Hoxie 1
72434 Arkansas Lawrence Imboden 1
72435 Arkansas Clay Knobel 1
72436 Arkansas Greene Lafe 1
72437 Arkansas Craighead Lake City 1
72438 Arkansas Mississippi Leachville 1
72439 Arkansas Greene Light 1
72440 Arkansas Lawrence Lynn 1
72441 Arkansas Clay McDougal 1
72442 Arkansas Mississippi Manila 1
72443 Arkansas Greene Marmaduke 1
72444 Arkansas Randolph Maynard 1
72445 Arkansas Lawrence Minturn 1
72447 Arkansas Craighead Monette 1
72450 Arkansas Greene Paragould 1
72451 Arkansas Greene Paragould 1
72453 Arkansas Clay Peach Orchard 1
72454 Arkansas Clay Piggott 1
72455 Arkansas Randolph Pocahontas 1
72456 Arkansas Clay Pollard 1
72457 Arkansas Lawrence Portia 1
72458 Arkansas Lawrence Powhatan 1
72459 Arkansas Lawrence Ravenden 1
72460 Arkansas Randolph Ravenden Springs 1
72461 Arkansas Clay Rector 1
72462 Arkansas Randolph Reyno 1
72464 Arkansas Clay Saint Francis 1
72465 Arkansas Lawrence Sedgwick 1
72466 Arkansas Lawrence Smithville 1
72467 Arkansas Craighead State University 1
72469 Arkansas Lawrence Strawberry 1
72470 Arkansas Clay Success 1
72471 Arkansas Jackson Swifton 1
72472 Arkansas Poinsett Trumann 1
72473 Arkansas Jackson Tuckerman 1
72474 Arkansas Greene Walcott 1
72475 Arkansas Poinsett Waldenburg 1
72476 Arkansas Lawrence Walnut Ridge 1
72478 Arkansas Randolph Warm Springs 1
72479 Arkansas Poinsett Weiner 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.