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
13332	New York	Chenango	Earlville	1
13333	New York	Otsego	East Springfield	1
13334	New York	Madison	Eaton	1
13335	New York	Otsego	Edmeston	1
13337	New York	Otsego	Fly Creek	1
13338	New York	Oneida	Forestport	1
13339	New York	Montgomery	Fort Plain	1
13340	New York	Herkimer	Frankfort	1
13341	New York	Oneida	Franklin Springs	1
13342	New York	Otsego	Garrattsville	1
13343	New York	Lewis	Glenfield	1
13345	New York	Lewis	Greig	1
13346	New York	Madison	Hamilton	1
13348	New York	Otsego	Hartwick	1
13350	New York	Herkimer	Herkimer	1
13352	New York	Oneida	Hinckley	1
13353	New York	Hamilton	Hoffmeister	1
13354	New York	Oneida	Holland Patent	1
13355	New York	Madison	Hubbardsville	1
13357	New York	Herkimer	Ilion	1
13360	New York	Hamilton	Inlet	1
13361	New York	Herkimer	Jordanville	1
13362	New York	Oneida	Knoxboro	1
13363	New York	Oneida	Lee Center	1
13364	New York	Madison	Leonardsville	1
13365	New York	Herkimer	Little Falls	1
13367	New York	Lewis	Lowville	1
13368	New York	Lewis	Lyons Falls	1
13401	New York	Oneida	McConnellsville	1
13402	New York	Madison	Madison	1
13403	New York	Oneida	Marcy	1
13404	New York	Lewis	Martinsburg	1
13406	New York	Herkimer	Middleville	1
13407	New York	Herkimer	Mohawk	1
13408	New York	Madison	Morrisville	1
13409	New York	Madison	Munnsville	1
13410	New York	Montgomery	Nelliston	1
13411	New York	Chenango	New Berlin	1
13413	New York	Oneida	New Hartford	1
13415	New York	Otsego	New Lisbon	1
13416	New York	Herkimer	Newport	1
13417	New York	Oneida	New York Mills	1
13418	New York	Madison	North Brookfield	1
13420	New York	Herkimer	Old Forge	1
13421	New York	Madison	Oneida	1
13424	New York	Oneida	Oriskany	1
13425	New York	Oneida	Oriskany Falls	1
13426	New York	Oswego	Orwell	1
13428	New York	Montgomery	Palatine Bridge	1
13431	New York	Herkimer	Poland	1

Page 103 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.