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
58621 North Dakota Golden Valley Beach 1
58622 North Dakota Stark Belfield 1
58623 North Dakota Bowman Bowman 1
58625 North Dakota Dunn Dodge 1
58626 North Dakota Dunn Dunn Center 1
58627 North Dakota Billings Fairfield 1
58630 North Dakota Stark Gladstone 1
58631 North Dakota Morton Glen Ullin 1
58632 North Dakota Golden Valley Golva 1
58634 North Dakota McKenzie Grassy Butte 1
58636 North Dakota Dunn Halliday 1
58638 North Dakota Morton Hebron 1
58639 North Dakota Adams Hettinger 1
58640 North Dakota Dunn Killdeer 1
58641 North Dakota Stark Lefor 1
58642 North Dakota Dunn Manning 1
58643 North Dakota Slope Marmarth 1
58644 North Dakota Dunn Marshall 1
58645 North Dakota Billings Medora 1
58646 North Dakota Hettinger Mott 1
58647 North Dakota Hettinger New England 1
58649 North Dakota Adams Reeder 1
58650 North Dakota Hettinger Regent 1
58651 North Dakota Bowman Rhame 1
58652 North Dakota Stark Richardton 1
58653 North Dakota Bowman Scranton 1
58654 North Dakota Golden Valley Sentinel Butte 1
58655 North Dakota Stark South Heart 1
58656 North Dakota Stark Taylor 1
58701 North Dakota Ward Minot 1
58702 North Dakota Ward Minot 1
58703 North Dakota Ward Minot 1
58704 North Dakota Ward Minot Air Force Base 1
58705 North Dakota Ward Minot Air Force Base 1
58707 North Dakota Ward Minot 1
58710 North Dakota McHenry Anamoose 1
58711 North Dakota Bottineau Antler 1
58712 North Dakota McHenry Balfour 1
58713 North Dakota McHenry Bantry 1
58716 North Dakota McLean Benedict 1
58718 North Dakota Ward Berthold 1
58721 North Dakota Burke Bowbells 1
58722 North Dakota Ward Burlington 1
58723 North Dakota McLean Butte 1
58725 North Dakota Ward Carpio 1
58727 North Dakota Burke Columbus 1
58730 North Dakota Divide Crosby 1
58731 North Dakota McHenry Deering 1
58733 North Dakota Ward Des Lacs 1
58734 North Dakota Ward Donnybrook 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.