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
04961 Maine Somerset New Portland 1
04962 Maine Kennebec North Vassalboro 1
04963 Maine Kennebec Oakland 1
04964 Maine Franklin Oquossoc 1
04965 Maine Somerset Palmyra 1
04966 Maine Franklin Phillips 1
04967 Maine Somerset Pittsfield 1
04969 Maine Penobscot Plymouth 1
04970 Maine Franklin Rangeley 1
04971 Maine Somerset Saint Albans 1
04972 Maine Waldo Sandy Point 1
04973 Maine Waldo Searsmont 1
04974 Maine Waldo Searsport 1
04975 Maine Somerset Shawmut 1
04976 Maine Somerset Skowhegan 1
04978 Maine Somerset Smithfield 1
04979 Maine Somerset Solon 1
04981 Maine Waldo Stockton Springs 1
04982 Maine Franklin Stratton 1
04983 Maine Franklin Strong 1
04984 Maine Franklin Temple 1
04985 Maine Somerset West Forks 1
04986 Maine Waldo Thorndike 1
04987 Maine Waldo Troy 1
04988 Maine Waldo Unity 1
04989 Maine Kennebec Vassalboro 1
04992 Maine Franklin West Farmington 1
05001 Vermont Windsor White River Junction 1
05009 Vermont Windsor White River Junction 1
05030 Vermont Windsor Ascutney 1
05031 Vermont Windsor Barnard 1
05032 Vermont Windsor Bethel 1
05033 Vermont Orange Bradford 1
05034 Vermont Windsor Bridgewater 1
05035 Vermont Windsor Bridgewater Corners 1
05036 Vermont Orange Brookfield 1
05037 Vermont Windsor Brownsville 1
05038 Vermont Orange Chelsea 1
05039 Vermont Orange Corinth 1
05040 Vermont Orange East Corinth 1
05041 Vermont Orange East Randolph 1
05042 Vermont Caledonia East Ryegate 1
05043 Vermont Orange East Thetford 1
05045 Vermont Orange Fairlee 1
05046 Vermont Caledonia Groton 1
05047 Vermont Windsor Hartford 1
05048 Vermont Windsor Hartland 1
05049 Vermont Windsor Hartland Four Corners 1
05050 Vermont Caledonia McIndoe Falls 1
05051 Vermont Orange Newbury 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.