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 ZIP Code Data

42,605 zip code found

Postal Code State County City Records
12438 New York Delaware Halcottsville 1
12439 New York Greene Hensonville 1
12440 New York Ulster High Falls 1
12441 New York Ulster Highmount 1
12442 New York Greene Hunter 1
12443 New York Ulster Hurley 1
12444 New York Greene Jewett 1
12446 New York Ulster Kerhonkson 1
12448 New York Ulster Lake Hill 1
12449 New York Ulster Lake Katrine 1
12450 New York Greene Lanesville 1
12451 New York Greene Leeds 1
12452 New York Greene Lexington 1
12453 New York Ulster Malden on Hudson 1
12454 New York Greene Maplecrest 1
12455 New York Delaware Margaretville 1
12456 New York Ulster Mount Marion 1
12457 New York Ulster Mount Tremper 1
12458 New York Ulster Napanoch 1
12459 New York Delaware New Kingston 1
12460 New York Greene Oak Hill 1
12461 New York Ulster Olivebridge 1
12463 New York Greene Palenville 1
12464 New York Ulster Phoenicia 1
12465 New York Ulster Pine Hill 1
12466 New York Ulster Port Ewen 1
12468 New York Greene Prattsville 1
12469 New York Albany Preston Hollow 1
12470 New York Greene Purling 1
12471 New York Ulster Rifton 1
12472 New York Ulster Rosendale 1
12473 New York Greene Round Top 1
12474 New York Delaware Roxbury 1
12475 New York Ulster Ruby 1
12477 New York Ulster Saugerties 1
12480 New York Ulster Shandaken 1
12481 New York Ulster Shokan 1
12482 New York Greene South Cairo 1
12483 New York Ulster Spring Glen 1
12484 New York Ulster Stone Ridge 1
12485 New York Greene Tannersville 1
12486 New York Ulster Tillson 1
12487 New York Ulster Ulster Park 1
12489 New York Ulster Wawarsing 1
12490 New York Ulster West Camp 1
12491 New York Ulster West Hurley 1
12492 New York Greene West Kill 1
12493 New York Ulster West Park 1
12494 New York Ulster West Shokan 1
12495 New York Ulster Willow 1

ZIP Codes by Region

ZIP Codes 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.