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
06024 Connecticut Litchfield East Canaan 1
06025 Connecticut Hartford East Glastonbury 1
06026 Connecticut Hartford East Granby 1
06027 Connecticut Hartford East Hartland 1
06028 Connecticut Hartford East Windsor Hill 1
06029 Connecticut Tolland Ellington 1
06030 Connecticut Hartford Farmington 1
06031 Connecticut Litchfield Falls Village 1
06032 Connecticut Hartford Farmington 1
06033 Connecticut Hartford Glastonbury 1
06034 Connecticut Hartford Farmington 1
06035 Connecticut Hartford Granby 1
06037 Connecticut Hartford Berlin 1
06039 Connecticut Litchfield Lakeville 1
06040 Connecticut Hartford Manchester 1
06041 Connecticut Hartford Manchester 1
06043 Connecticut Tolland Bolton 1
06045 Connecticut Hartford Manchester 1
06050 Connecticut Hartford New Britain 1
06051 Connecticut Hartford New Britain 1
06052 Connecticut Hartford New Britain 1
06053 Connecticut Hartford New Britain 1
06057 Connecticut Litchfield New Hartford 1
06058 Connecticut Litchfield Norfolk 1
06059 Connecticut Hartford North Canton 1
06060 Connecticut Hartford North Granby 1
06061 Connecticut Litchfield Pine Meadow 1
06062 Connecticut Hartford Plainville 1
06063 Connecticut Litchfield Barkhamsted 1
06064 Connecticut Hartford Poquonock 1
06065 Connecticut Litchfield Riverton 1
06066 Connecticut Tolland Vernon Rockville 1
06067 Connecticut Hartford Rocky Hill 1
06068 Connecticut Litchfield Salisbury 1
06069 Connecticut Litchfield Sharon 1
06070 Connecticut Hartford Simsbury 1
06071 Connecticut Tolland Somers 1
06072 Connecticut Tolland Somersville 1
06073 Connecticut Hartford South Glastonbury 1
06074 Connecticut Hartford South Windsor 1
06075 Connecticut Tolland Stafford 1
06076 Connecticut Tolland Stafford Springs 1
06077 Connecticut Tolland Staffordville 1
06078 Connecticut Hartford Suffield 1
06079 Connecticut Litchfield Taconic 1
06080 Connecticut Hartford Suffield 1
06081 Connecticut Hartford Tariffville 1
06082 Connecticut Hartford Enfield 1
06083 Connecticut Hartford Enfield 1
06084 Connecticut Tolland Tolland 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.