United States Postcode Database

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
13040	New York	Cortland	Cincinnatus	1
13041	New York	Onondaga	Clay	1
13042	New York	Oswego	Cleveland	1
13043	New York	Madison	Clockville	1
13044	New York	Oswego	Constantia	1
13045	New York	Cortland	Cortland	1
13051	New York	Onondaga	Delphi Falls	1
13052	New York	Madison	De Ruyter	1
13053	New York	Tompkins	Dryden	1
13054	New York	Oneida	Durhamville	1
13056	New York	Cortland	East Homer	1
13057	New York	Onondaga	East Syracuse	1
13060	New York	Onondaga	Elbridge	1
13061	New York	Madison	Erieville	1
13062	New York	Tompkins	Etna	1
13063	New York	Onondaga	Fabius	1
13064	New York	Cayuga	Fair Haven	1
13065	New York	Seneca	Fayette	1
13066	New York	Onondaga	Fayetteville	1
13068	New York	Tompkins	Freeville	1
13069	New York	Oswego	Fulton	1
13071	New York	Cayuga	Genoa	1
13072	New York	Madison	Georgetown	1
13073	New York	Tompkins	Groton	1
13074	New York	Oswego	Hannibal	1
13076	New York	Oswego	Hastings	1
13077	New York	Cortland	Homer	1
13078	New York	Onondaga	Jamesville	1
13080	New York	Onondaga	Jordan	1
13081	New York	Cayuga	King Ferry	1
13082	New York	Madison	Kirkville	1
13083	New York	Oswego	Lacona	1
13084	New York	Onondaga	La Fayette	1
13087	New York	Cortland	Little York	1
13088	New York	Onondaga	Liverpool	1
13089	New York	Onondaga	Liverpool	1
13090	New York	Onondaga	Liverpool	1
13092	New York	Tompkins	Locke	1
13093	New York	Oswego	Lycoming	1
13101	New York	Cortland	Mc Graw	1
13102	New York	Tompkins	Mc Lean	1
13103	New York	Oswego	Mallory	1
13104	New York	Onondaga	Manlius	1
13107	New York	Oswego	Maple View	1
13108	New York	Onondaga	Marcellus	1
13110	New York	Onondaga	Marietta	1
13111	New York	Cayuga	Martville	1
13112	New York	Onondaga	Memphis	1
13113	New York	Cayuga	Meridian	1
13114	New York	Oswego	Mexico	1

Page 100 of 853 · 42,605 postcode

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.