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
54967 Wisconsin Waushara Poy Sippi 1
54968 Wisconsin Green Lake Princeton 1
54969 Wisconsin Waupaca Readfield 1
54970 Wisconsin Waushara Redgranite 1
54971 Wisconsin Fond du Lac Ripon 1
54974 Wisconsin Fond du Lac Rosendale 1
54975 Wisconsin Waupaca Royalton 1
54976 Wisconsin Waushara Saxeville 1
54977 Wisconsin Waupaca Scandinavia 1
54978 Wisconsin Shawano Tilleda 1
54979 Wisconsin Fond du Lac Van Dyne 1
54980 Wisconsin Winnebago Waukau 1
54981 Wisconsin Waupaca Waupaca 1
54982 Wisconsin Waushara Wautoma 1
54983 Wisconsin Waupaca Weyauwega 1
54984 Wisconsin Waushara Wild Rose 1
54985 Wisconsin Winnebago Winnebago 1
54986 Wisconsin Winnebago Winneconne 1
54990 Wisconsin Waupaca Iola 1
55001 Minnesota Washington Afton 1
55002 Minnesota Chisago Almelund 1
55003 Minnesota Washington Bayport 1
55005 Minnesota Anoka Bethel 1
55006 Minnesota Isanti Braham 1
55007 Minnesota Pine Brook Park 1
55008 Minnesota Isanti Cambridge 1
55009 Minnesota Goodhue Cannon Falls 1
55010 Minnesota Dakota Castle Rock 1
55011 Minnesota Anoka Cedar 1
55012 Minnesota Chisago Center City 1
55013 Minnesota Chisago Chisago City 1
55014 Minnesota Anoka Circle Pines 1
55016 Minnesota Washington Cottage Grove 1
55017 Minnesota Isanti Dalbo 1
55018 Minnesota Goodhue Dennison 1
55019 Minnesota Rice Dundas 1
55020 Minnesota Scott Elko 1
55021 Minnesota Rice Faribault 1
55024 Minnesota Dakota Farmington 1
55025 Minnesota Washington Forest Lake 1
55026 Minnesota Goodhue Frontenac 1
55027 Minnesota Goodhue Goodhue 1
55029 Minnesota Isanti Grandy 1
55030 Minnesota Pine Grasston 1
55031 Minnesota Dakota Hampton 1
55032 Minnesota Chisago Harris 1
55033 Minnesota Dakota Hastings 1
55036 Minnesota Pine Henriette 1
55037 Minnesota Pine Hinckley 1
55038 Minnesota Washington Hugo 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.