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
99103 Washington Lincoln Almira 1
99104 Washington Whitman Belmont 1
99105 Washington Adams Benge 1
99107 Washington Ferry Boyds 1
99109 Washington Stevens Chewelah 1
99110 Washington Stevens Clayton 1
99111 Washington Whitman Colfax 1
99113 Washington Whitman Colton 1
99114 Washington Stevens Colville 1
99115 Washington Grant Coulee City 1
99116 Washington Okanogan Coulee Dam 1
99117 Washington Lincoln Creston 1
99118 Washington Ferry Curlew 1
99119 Washington Pend Oreille Cusick 1
99121 Washington Ferry Danville 1
99122 Washington Lincoln Davenport 1
99123 Washington Grant Electric City 1
99124 Washington Okanogan Elmer City 1
99125 Washington Whitman Endicott 1
99126 Washington Stevens Evans 1
99127 Washington Whitman Saint John 1
99128 Washington Whitman Farmington 1
99129 Washington Stevens Fruitland 1
99130 Washington Whitman Garfield 1
99131 Washington Stevens Gifford 1
99133 Washington Grant Grand Coulee 1
99134 Washington Lincoln Harrington 1
99135 Washington Grant Hartline 1
99136 Washington Whitman Hay 1
99137 Washington Stevens Hunters 1
99138 Washington Ferry Inchelium 1
99139 Washington Pend Oreille Ione 1
99140 Washington Ferry Keller 1
99141 Washington Stevens Kettle Falls 1
99143 Washington Whitman Lacrosse 1
99144 Washington Lincoln Lamona 1
99146 Washington Ferry Laurier 1
99147 Washington Lincoln Lincoln 1
99148 Washington Stevens Loon Lake 1
99149 Washington Whitman Malden 1
99150 Washington Ferry Malo 1
99151 Washington Stevens Marcus 1
99152 Washington Pend Oreille Metaline 1
99153 Washington Pend Oreille Metaline Falls 1
99154 Washington Lincoln Mohler 1
99155 Washington Okanogan Nespelem 1
99156 Washington Pend Oreille Newport 1
99157 Washington Stevens Northport 1
99158 Washington Whitman Oakesdale 1
99159 Washington Lincoln Odessa 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.