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
30055 Georgia Jasper Mansfield 1
30056 Georgia Newton Newborn 1
30058 Georgia Dekalb Lithonia 1
30060 Georgia Cobb Marietta 1
30061 Georgia Cobb Marietta 1
30062 Georgia Cobb Marietta 1
30063 Georgia Cobb Marietta 1
30064 Georgia Cobb Marietta 1
30065 Georgia Cobb Marietta 1
30066 Georgia Cobb Marietta 1
30067 Georgia Cobb Marietta 1
30068 Georgia Cobb Marietta 1
30069 Georgia Cobb Marietta 1
30070 Georgia Newton Porterdale 1
30071 Georgia Gwinnett Norcross 1
30072 Georgia Dekalb Pine Lake 1
30074 Georgia Dekalb Redan 1
30075 Georgia Fulton Roswell 1
30076 Georgia Fulton Roswell 1
30077 Georgia Fulton Roswell 1
30078 Georgia Gwinnett Snellville 1
30079 Georgia Dekalb Scottdale 1
30080 Georgia Cobb Smyrna 1
30081 Georgia Cobb Smyrna 1
30082 Georgia Cobb Smyrna 1
30083 Georgia Dekalb Stone Mountain 1
30084 Georgia Dekalb Tucker 1
30085 Georgia Dekalb Tucker 1
30086 Georgia Dekalb Stone Mountain 1
30087 Georgia Dekalb Stone Mountain 1
30088 Georgia Dekalb Stone Mountain 1
30090 Georgia Cobb Marietta 1
30091 Georgia Gwinnett Norcross 1
30092 Georgia Gwinnett Norcross 1
30093 Georgia Gwinnett Norcross 1
30094 Georgia Rockdale Conyers 1
30095 Georgia Gwinnett Duluth 1
30096 Georgia Gwinnett Duluth 1
30097 Georgia Gwinnett Duluth 1
30098 Georgia Gwinnett Duluth 1
30099 Georgia Gwinnett Duluth 1
30101 Georgia Cobb Acworth 1
30102 Georgia Cherokee Acworth 1
30103 Georgia Bartow Adairsville 1
30104 Georgia Polk Aragon 1
30105 Georgia Floyd Armuchee 1
30106 Georgia Cobb Austell 1
30107 Georgia Cherokee Ball Ground 1
30108 Georgia Carroll Bowdon 1
30109 Georgia Carroll Bowdon Junction 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.