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
58071 North Dakota Cass Tower City 1
58072 North Dakota Barnes Valley City 1
58074 North Dakota Richland Wahpeton 1
58075 North Dakota Richland Wahpeton 1
58076 North Dakota Richland Wahpeton 1
58077 North Dakota Richland Walcott 1
58078 North Dakota Cass West Fargo 1
58079 North Dakota Cass Wheatland 1
58081 North Dakota Richland Wyndmere 1
58102 North Dakota Cass Fargo 1
58103 North Dakota Cass Fargo 1
58104 North Dakota Cass Fargo 1
58105 North Dakota Cass Fargo 1
58106 North Dakota Cass Fargo 1
58107 North Dakota Cass Fargo 1
58108 North Dakota Cass Fargo 1
58109 North Dakota Cass Fargo 1
58121 North Dakota Cass Fargo 1
58122 North Dakota Cass Fargo 1
58123 North Dakota Cass Fargo 1
58124 North Dakota Cass Fargo 1
58125 North Dakota Cass Fargo 1
58126 North Dakota Cass Fargo 1
58201 North Dakota Grand Forks Grand Forks 1
58202 North Dakota Grand Forks Grand Forks 1
58203 North Dakota Grand Forks Grand Forks 1
58204 North Dakota Grand Forks Grand Forks Air Force Base 1
58205 North Dakota Grand Forks Grand Forks Air Force Base 1
58206 North Dakota Grand Forks Grand Forks 1
58207 North Dakota Grand Forks Grand Forks 1
58208 North Dakota Grand Forks Grand Forks 1
58210 North Dakota Walsh Adams 1
58212 North Dakota Nelson Aneta 1
58214 North Dakota Grand Forks Arvilla 1
58216 North Dakota Pembina Bathgate 1
58218 North Dakota Traill Buxton 1
58219 North Dakota Traill Caledonia 1
58220 North Dakota Pembina Cavalier 1
58222 North Dakota Pembina Crystal 1
58223 North Dakota Traill Cummings 1
58224 North Dakota Nelson Dahlen 1
58225 North Dakota Pembina Drayton 1
58227 North Dakota Walsh Edinburg 1
58228 North Dakota Grand Forks Emerado 1
58229 North Dakota Walsh Fairdale 1
58230 North Dakota Steele Finley 1
58231 North Dakota Walsh Fordville 1
58233 North Dakota Walsh Forest River 1
58235 North Dakota Grand Forks Gilby 1
58236 North Dakota Pembina Glasston 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.