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
54824 Wisconsin Polk Centuria 1
54826 Wisconsin Barron Comstock 1
54827 Wisconsin Bayfield Cornucopia 1
54828 Wisconsin Sawyer Couderay 1
54829 Wisconsin Barron Cumberland 1
54830 Wisconsin Burnett Danbury 1
54832 Wisconsin Bayfield Drummond 1
54834 Wisconsin Sawyer Edgewater 1
54835 Wisconsin Sawyer Exeland 1
54836 Wisconsin Douglas Foxboro 1
54837 Wisconsin Polk Frederic 1
54838 Wisconsin Douglas Gordon 1
54839 Wisconsin Bayfield Grand View 1
54840 Wisconsin Burnett Grantsburg 1
54841 Wisconsin Barron Haugen 1
54842 Wisconsin Douglas Hawthorne 1
54843 Wisconsin Sawyer Hayward 1
54844 Wisconsin Bayfield Herbster 1
54845 Wisconsin Burnett Hertel 1
54846 Wisconsin Ashland High Bridge 1
54847 Wisconsin Bayfield Iron River 1
54848 Wisconsin Rusk Ladysmith 1
54849 Wisconsin Douglas Lake Nebagamon 1
54850 Wisconsin Ashland La Pointe 1
54853 Wisconsin Polk Luck 1
54854 Wisconsin Douglas Maple 1
54855 Wisconsin Ashland Marengo 1
54856 Wisconsin Bayfield Mason 1
54857 Wisconsin Barron Mikana 1
54858 Wisconsin Polk Milltown 1
54859 Wisconsin Washburn Minong 1
54861 Wisconsin Ashland Odanah 1
54862 Wisconsin Sawyer Ojibwa 1
54864 Wisconsin Douglas Poplar 1
54865 Wisconsin Bayfield Port Wing 1
54867 Wisconsin Sawyer Radisson 1
54868 Wisconsin Barron Rice Lake 1
54870 Wisconsin Washburn Sarona 1
54871 Wisconsin Washburn Shell Lake 1
54872 Wisconsin Burnett Siren 1
54873 Wisconsin Douglas Solon Springs 1
54874 Wisconsin Douglas South Range 1
54875 Wisconsin Washburn Springbrook 1
54876 Wisconsin Sawyer Stone Lake 1
54880 Wisconsin Douglas Superior 1
54888 Wisconsin Washburn Trego 1
54889 Wisconsin Barron Turtle Lake 1
54890 Wisconsin Douglas Wascott 1
54891 Wisconsin Bayfield Washburn 1
54893 Wisconsin Burnett Webster 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.