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
55589 Minnesota Wright Monticello 1
55590 Minnesota Wright Monticello 1
55591 Minnesota Wright Monticello 1
55592 Minnesota Wright Maple Plain 1
55593 Minnesota Hennepin Maple Plain 1
55594 Minnesota Carver Young America 1
55595 Minnesota Hennepin Loretto 1
55596 Minnesota Hennepin Loretto 1
55597 Minnesota Hennepin Loretto 1
55598 Minnesota Hennepin Loretto 1
55599 Minnesota Hennepin Loretto 1
55601 Minnesota Lake Beaver Bay 1
55602 Minnesota Saint Louis Brimson 1
55603 Minnesota Lake Finland 1
55604 Minnesota Cook Grand Marais 1
55605 Minnesota Cook Grand Portage 1
55606 Minnesota Cook Hovland 1
55607 Minnesota Lake Isabella 1
55609 Minnesota Lake Knife River 1
55612 Minnesota Cook Lutsen 1
55613 Minnesota Cook Schroeder 1
55614 Minnesota Lake Silver Bay 1
55615 Minnesota Cook Tofte 1
55616 Minnesota Lake Two Harbors 1
55701 Minnesota Saint Louis Adolph 1
55702 Minnesota Saint Louis Alborn 1
55703 Minnesota Saint Louis Angora 1
55704 Minnesota Pine Askov 1
55705 Minnesota Saint Louis Aurora 1
55706 Minnesota Saint Louis Babbitt 1
55707 Minnesota Carlton Barnum 1
55708 Minnesota Saint Louis Biwabik 1
55709 Minnesota Itasca Bovey 1
55710 Minnesota Saint Louis Britt 1
55711 Minnesota Saint Louis Brookston 1
55712 Minnesota Pine Bruno 1
55713 Minnesota Saint Louis Buhl 1
55716 Minnesota Itasca Calumet 1
55717 Minnesota Saint Louis Canyon 1
55718 Minnesota Carlton Carlton 1
55719 Minnesota Saint Louis Chisholm 1
55720 Minnesota Carlton Cloquet 1
55721 Minnesota Itasca Cohasset 1
55722 Minnesota Itasca Coleraine 1
55723 Minnesota Saint Louis Cook 1
55724 Minnesota Saint Louis Cotton 1
55725 Minnesota Saint Louis Crane Lake 1
55726 Minnesota Carlton Cromwell 1
55730 Minnesota Itasca Grand Rapids 1
55731 Minnesota Saint Louis Ely 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.