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
58426 North Dakota Stutsman Courtenay 1
58428 North Dakota Kidder Dawson 1
58429 North Dakota Barnes Dazey 1
58430 North Dakota Sheridan Denhoff 1
58431 North Dakota Lamoure Dickey 1
58433 North Dakota Lamoure Edgeley 1
58436 North Dakota Dickey Ellendale 1
58438 North Dakota Wells Fessenden 1
58439 North Dakota Dickey Forbes 1
58440 North Dakota Logan Fredonia 1
58441 North Dakota Dickey Fullerton 1
58442 North Dakota Logan Gackle 1
58443 North Dakota Foster Glenfield 1
58444 North Dakota Sheridan Goodrich 1
58445 North Dakota Foster Grace City 1
58448 North Dakota Griggs Hannaford 1
58451 North Dakota Wells Hurdsfield 1
58452 North Dakota Griggs Jessie 1
58454 North Dakota Lamoure Jud 1
58455 North Dakota Stutsman Kensal 1
58456 North Dakota Lamoure Kulm 1
58458 North Dakota Lamoure Lamoure 1
58460 North Dakota McIntosh Lehr 1
58461 North Dakota Barnes Litchville 1
58463 North Dakota Sheridan McClusky 1
58464 North Dakota Foster McHenry 1
58466 North Dakota Lamoure Marion 1
58467 North Dakota Stutsman Medina 1
58472 North Dakota Stutsman Montpelier 1
58474 North Dakota Dickey Oakes 1
58475 North Dakota Kidder Pettibone 1
58476 North Dakota Stutsman Pingree 1
58477 North Dakota Burleigh Regan 1
58478 North Dakota Kidder Robinson 1
58479 North Dakota Barnes Rogers 1
58480 North Dakota Barnes Sanborn 1
58481 North Dakota Barnes Spiritwood 1
58482 North Dakota Kidder Steele 1
58483 North Dakota Stutsman Streeter 1
58484 North Dakota Griggs Sutton 1
58486 North Dakota Wells Sykeston 1
58487 North Dakota Kidder Tappen 1
58488 North Dakota Kidder Tuttle 1
58490 North Dakota Lamoure Verona 1
58492 North Dakota Barnes Wimbledon 1
58494 North Dakota Burleigh Wing 1
58495 North Dakota McIntosh Wishek 1
58496 North Dakota Stutsman Woodworth 1
58497 North Dakota Stutsman Ypsilanti 1
58501 North Dakota Burleigh Bismarck 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.