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
58332 North Dakota Benson Esmond 1
58335 North Dakota Benson Fort Totten 1
58337 North Dakota Wells Hamberg 1
58338 North Dakota Ramsey Hampden 1
58339 North Dakota Towner Hansboro 1
58341 North Dakota Wells Harvey 1
58343 North Dakota Benson Knox 1
58344 North Dakota Nelson Lakota 1
58345 North Dakota Ramsey Lawton 1
58346 North Dakota Benson Leeds 1
58348 North Dakota Benson Maddock 1
58351 North Dakota Benson Minnewaukan 1
58352 North Dakota Cavalier Munich 1
58353 North Dakota Rolette Mylo 1
58355 North Dakota Cavalier Nekoma 1
58356 North Dakota Eddy New Rockford 1
58357 North Dakota Benson Oberon 1
58359 North Dakota Pierce Orrin 1
58361 North Dakota Nelson Pekin 1
58362 North Dakota Ramsey Penn 1
58363 North Dakota Towner Perth 1
58365 North Dakota Towner Rocklake 1
58366 North Dakota Rolette Rolette 1
58367 North Dakota Rolette Rolla 1
58368 North Dakota Pierce Rugby 1
58369 North Dakota Rolette Saint John 1
58370 North Dakota Benson Saint Michael 1
58372 North Dakota Cavalier Sarles 1
58374 North Dakota Eddy Sheyenne 1
58377 North Dakota Ramsey Starkweather 1
58379 North Dakota Benson Tokio 1
58380 North Dakota Nelson Tolna 1
58381 North Dakota Benson Warwick 1
58382 North Dakota Ramsey Webster 1
58384 North Dakota Bottineau Willow City 1
58385 North Dakota Pierce Wolford 1
58386 North Dakota Benson York 1
58401 North Dakota Stutsman Jamestown 1
58402 North Dakota Stutsman Jamestown 1
58405 North Dakota Stutsman Jamestown 1
58413 North Dakota McIntosh Ashley 1
58415 North Dakota Lamoure Berlin 1
58416 North Dakota Griggs Binford 1
58418 North Dakota Wells Bowdon 1
58420 North Dakota Stutsman Buchanan 1
58421 North Dakota Foster Carrington 1
58422 North Dakota Wells Cathay 1
58423 North Dakota Wells Chaseley 1
58424 North Dakota Stutsman Cleveland 1
58425 North Dakota Griggs Cooperstown 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.