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
10160 New York New York New York 1
10161 New York New York New York 1
10162 New York New York New York 1
10163 New York New York New York 1
10164 New York New York New York 1
10165 New York New York New York 1
10166 New York New York New York 1
10167 New York New York New York 1
10168 New York New York New York 1
10169 New York New York New York 1
10170 New York New York New York 1
10171 New York New York New York 1
10172 New York New York New York 1
10173 New York New York New York 1
10174 New York New York New York 1
10175 New York New York New York 1
10176 New York New York New York 1
10177 New York New York New York 1
10178 New York New York New York 1
10179 New York New York New York 1
10184 New York New York New York 1
10185 New York New York New York 1
10196 New York New York New York 1
10197 New York New York New York 1
10199 New York New York New York 1
10203 New York New York New York 1
10211 New York New York New York 1
10212 New York New York New York 1
10213 New York New York New York 1
10242 New York New York New York 1
10249 New York New York New York 1
10256 New York New York New York 1
10257 New York New York New York 1
10258 New York New York New York 1
10259 New York New York New York 1
10260 New York New York New York 1
10261 New York New York New York 1
10265 New York New York New York 1
10268 New York New York New York 1
10269 New York New York New York 1
10270 New York New York New York 1
10271 New York New York New York 1
10272 New York New York New York 1
10273 New York New York New York 1
10274 New York New York New York 1
10275 New York New York New York 1
10276 New York New York New York 1
10277 New York New York New York 1
10278 New York New York New York 1
10279 New York New York New York 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.