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
46017 Indiana Madison Anderson 1
46018 Indiana Madison Anderson 1
46030 Indiana Hamilton Arcadia 1
46031 Indiana Hamilton Atlanta 1
46032 Indiana Hamilton Carmel 1
46033 Indiana Hamilton Carmel 1
46034 Indiana Hamilton Cicero 1
46035 Indiana Clinton Colfax 1
46036 Indiana Madison Elwood 1
46038 Indiana Hamilton Fishers 1
46039 Indiana Clinton Forest 1
46040 Indiana Hancock Fortville 1
46041 Indiana Clinton Frankfort 1
46044 Indiana Madison Frankton 1
46045 Indiana Tipton Goldsmith 1
46047 Indiana Tipton Hobbs 1
46048 Indiana Madison Ingalls 1
46049 Indiana Tipton Kempton 1
46050 Indiana Clinton Kirklin 1
46051 Indiana Madison Lapel 1
46052 Indiana Boone Lebanon 1
46055 Indiana Hancock Mc Cordsville 1
46056 Indiana Madison Markleville 1
46057 Indiana Clinton Michigantown 1
46058 Indiana Clinton Mulberry 1
46060 Indiana Hamilton Noblesville 1
46061 Indiana Hamilton Noblesville 1
46063 Indiana Madison Orestes 1
46064 Indiana Madison Pendleton 1
46065 Indiana Clinton Rossville 1
46067 Indiana Clinton Sedalia 1
46068 Indiana Tipton Sharpsville 1
46069 Indiana Hamilton Sheridan 1
46070 Indiana Madison Summitville 1
46071 Indiana Boone Thorntown 1
46072 Indiana Tipton Tipton 1
46074 Indiana Hamilton Westfield 1
46075 Indiana Boone Whitestown 1
46076 Indiana Tipton Windfall 1
46077 Indiana Boone Zionsville 1
46082 Indiana Hamilton Carmel 1
46102 Indiana Boone Advance 1
46103 Indiana Hendricks Amo 1
46104 Indiana Rush Arlington 1
46105 Indiana Putnam Bainbridge 1
46106 Indiana Johnson Bargersville 1
46107 Indiana Marion Beech Grove 1
46110 Indiana Shelby Boggstown 1
46111 Indiana Morgan Brooklyn 1
46112 Indiana Hendricks Brownsburg 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.