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
74183 Oklahoma Tulsa Tulsa 1
74184 Oklahoma Tulsa Tulsa 1
74186 Oklahoma Tulsa Tulsa 1
74187 Oklahoma Tulsa Tulsa 1
74189 Oklahoma Tulsa Tulsa 1
74192 Oklahoma Tulsa Tulsa 1
74193 Oklahoma Tulsa Tulsa 1
74194 Oklahoma Tulsa Tulsa 1
74301 Oklahoma Craig Vinita 1
74330 Oklahoma Mayes Adair 1
74331 Oklahoma Ottawa Afton 1
74332 Oklahoma Craig Big Cabin 1
74333 Oklahoma Ottawa Bluejacket 1
74335 Oklahoma Ottawa Cardin 1
74337 Oklahoma Mayes Chouteau 1
74338 Oklahoma Delaware Colcord 1
74339 Oklahoma Ottawa Commerce 1
74340 Oklahoma Mayes Disney 1
74342 Oklahoma Delaware Eucha 1
74343 Oklahoma Ottawa Fairland 1
74344 Oklahoma Delaware Grove 1
74345 Oklahoma Delaware Grove 1
74346 Oklahoma Delaware Jay 1
74347 Oklahoma Delaware Kansas 1
74349 Oklahoma Mayes Ketchum 1
74350 Oklahoma Mayes Langley 1
74352 Oklahoma Mayes Locust Grove 1
74354 Oklahoma Ottawa Miami 1
74355 Oklahoma Ottawa Miami 1
74358 Oklahoma Ottawa North Miami 1
74359 Oklahoma Delaware Oaks 1
74360 Oklahoma Ottawa Picher 1
74361 Oklahoma Mayes Pryor 1
74362 Oklahoma Mayes Pryor 1
74363 Oklahoma Ottawa Quapaw 1
74364 Oklahoma Delaware Rose 1
74365 Oklahoma Mayes Salina 1
74366 Oklahoma Mayes Spavinaw 1
74367 Oklahoma Mayes Strang 1
74368 Oklahoma Delaware Twin Oaks 1
74369 Oklahoma Craig Welch 1
74370 Oklahoma Ottawa Wyandotte 1
74401 Oklahoma Muskogee Muskogee 1
74402 Oklahoma Muskogee Muskogee 1
74403 Oklahoma Muskogee Muskogee 1
74421 Oklahoma Okmulgee Beggs 1
74422 Oklahoma Muskogee Boynton 1
74423 Oklahoma Muskogee Braggs 1
74425 Oklahoma Pittsburg Canadian 1
74426 Oklahoma McIntosh Checotah 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.