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
56680 Minnesota Itasca Spring Lake 1
56681 Minnesota Itasca Squaw Lake 1
56682 Minnesota Roseau Swift 1
56683 Minnesota Beltrami Tenstrike 1
56684 Minnesota Polk Trail 1
56685 Minnesota Beltrami Waskish 1
56686 Minnesota Lake of the Woods Williams 1
56687 Minnesota Beltrami Wilton 1
56688 Minnesota Itasca Wirt 1
56701 Minnesota Pennington Thief River Falls 1
56710 Minnesota Marshall Alvarado 1
56711 Minnesota Lake of the Woods Angle Inlet 1
56713 Minnesota Marshall Argyle 1
56714 Minnesota Roseau Badger 1
56715 Minnesota Red Lake Brooks 1
56716 Minnesota Polk Crookston 1
56720 Minnesota Kittson Donaldson 1
56721 Minnesota Polk East Grand Forks 1
56722 Minnesota Polk Euclid 1
56723 Minnesota Polk Fisher 1
56724 Minnesota Marshall Gatzke 1
56725 Minnesota Pennington Goodridge 1
56726 Minnesota Roseau Greenbush 1
56727 Minnesota Marshall Grygla 1
56728 Minnesota Kittson Hallock 1
56729 Minnesota Kittson Halma 1
56731 Minnesota Kittson Humboldt 1
56732 Minnesota Kittson Karlstad 1
56733 Minnesota Kittson Kennedy 1
56734 Minnesota Kittson Lake Bronson 1
56735 Minnesota Kittson Lancaster 1
56736 Minnesota Polk Mentor 1
56737 Minnesota Marshall Middle River 1
56738 Minnesota Marshall Newfolden 1
56740 Minnesota Kittson Noyes 1
56741 Minnesota Lake of the Woods Oak Island 1
56742 Minnesota Red Lake Oklee 1
56744 Minnesota Marshall Oslo 1
56748 Minnesota Red Lake Plummer 1
56750 Minnesota Red Lake Red Lake Falls 1
56751 Minnesota Roseau Roseau 1
56754 Minnesota Pennington Saint Hilaire 1
56755 Minnesota Kittson Saint Vincent 1
56756 Minnesota Roseau Salol 1
56757 Minnesota Marshall Stephen 1
56758 Minnesota Marshall Strandquist 1
56759 Minnesota Roseau Strathcona 1
56760 Minnesota Marshall Viking 1
56761 Minnesota Roseau Wannaska 1
56762 Minnesota Marshall Warren 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.