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
74427 Oklahoma Cherokee Cookson 1
74428 Oklahoma Muskogee Council Hill 1
74429 Oklahoma Wagoner Coweta 1
74430 Oklahoma Pittsburg Crowder 1
74431 Oklahoma Okmulgee Dewar 1
74432 Oklahoma McIntosh Eufaula 1
74434 Oklahoma Muskogee Fort Gibson 1
74435 Oklahoma Sequoyah Gore 1
74436 Oklahoma Muskogee Haskell 1
74437 Oklahoma Okmulgee Henryetta 1
74438 Oklahoma McIntosh Hitchita 1
74440 Oklahoma Haskell Hoyt 1
74441 Oklahoma Cherokee Hulbert 1
74442 Oklahoma Pittsburg Indianola 1
74444 Oklahoma Cherokee Moodys 1
74445 Oklahoma Okmulgee Morris 1
74446 Oklahoma Wagoner Okay 1
74447 Oklahoma Okmulgee Okmulgee 1
74450 Oklahoma Muskogee Oktaha 1
74451 Oklahoma Cherokee Park Hill 1
74452 Oklahoma Cherokee Peggs 1
74454 Oklahoma Wagoner Porter 1
74455 Oklahoma Muskogee Porum 1
74456 Oklahoma Okmulgee Preston 1
74457 Oklahoma Adair Proctor 1
74458 Oklahoma Wagoner Redbird 1
74459 Oklahoma McIntosh Rentiesville 1
74460 Oklahoma Okmulgee Schulter 1
74461 Oklahoma McIntosh Stidham 1
74462 Oklahoma Haskell Stigler 1
74463 Oklahoma Muskogee Taft 1
74464 Oklahoma Cherokee Tahlequah 1
74465 Oklahoma Cherokee Tahlequah 1
74467 Oklahoma Wagoner Wagoner 1
74468 Oklahoma Muskogee Wainwright 1
74469 Oklahoma Muskogee Warner 1
74470 Oklahoma Muskogee Webbers Falls 1
74471 Oklahoma Cherokee Welling 1
74472 Oklahoma Haskell Whitefield 1
74477 Oklahoma Wagoner Wagoner 1
74501 Oklahoma Pittsburg McAlester 1
74502 Oklahoma Pittsburg McAlester 1
74521 Oklahoma Pushmataha Albion 1
74522 Oklahoma Pittsburg Alderson 1
74523 Oklahoma Pushmataha Antlers 1
74525 Oklahoma Atoka Atoka 1
74528 Oklahoma Pittsburg Blanco 1
74529 Oklahoma Pittsburg Blocker 1
74530 Oklahoma Johnston Bromide 1
74531 Oklahoma Hughes Calvin 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.