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
98344 Washington Pierce Kapowsin 1
98345 Washington Kitsap Keyport 1
98346 Washington Kitsap Kingston 1
98348 Washington Pierce La Grande 1
98349 Washington Pierce Lakebay 1
98350 Washington Clallam La Push 1
98351 Washington Pierce Longbranch 1
98352 Washington Pierce Sumner 1
98353 Washington Kitsap Manchester 1
98354 Washington Pierce Milton 1
98355 Washington Lewis Mineral 1
98356 Washington Lewis Morton 1
98357 Washington Clallam Neah Bay 1
98358 Washington Jefferson Nordland 1
98359 Washington Kitsap Olalla 1
98360 Washington Pierce Orting 1
98361 Washington Lewis Packwood 1
98362 Washington Clallam Port Angeles 1
98363 Washington Clallam Port Angeles 1
98364 Washington Kitsap Port Gamble 1
98365 Washington Jefferson Port Ludlow 1
98366 Washington Kitsap Port Orchard 1
98367 Washington Kitsap Port Orchard 1
98368 Washington Jefferson Port Townsend 1
98370 Washington Kitsap Poulsbo 1
98371 Washington Pierce Puyallup 1
98372 Washington Pierce Puyallup 1
98373 Washington Pierce Puyallup 1
98374 Washington Pierce Puyallup 1
98375 Washington Pierce Puyallup 1
98376 Washington Jefferson Quilcene 1
98377 Washington Lewis Randle 1
98378 Washington Kitsap Retsil 1
98380 Washington Kitsap Seabeck 1
98381 Washington Clallam Sekiu 1
98382 Washington Clallam Sequim 1
98383 Washington Kitsap Silverdale 1
98384 Washington Kitsap South Colby 1
98385 Washington Pierce South Prairie 1
98386 Washington Kitsap Southworth 1
98387 Washington Pierce Spanaway 1
98388 Washington Pierce Steilacoom 1
98390 Washington Pierce Sumner 1
98392 Washington Kitsap Suquamish 1
98393 Washington Kitsap Tracyton 1
98394 Washington Pierce Vaughn 1
98395 Washington Pierce Wauna 1
98396 Washington Pierce Wilkeson 1
98397 Washington Pierce Longmire 1
98398 Washington Pierce Paradise Inn 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.