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
43018 Ohio Licking Etna 1
43019 Ohio Knox Fredericktown 1
43021 Ohio Delaware Galena 1
43022 Ohio Knox Gambier 1
43023 Ohio Licking Granville 1
43025 Ohio Licking Hebron 1
43026 Ohio Franklin Hilliard 1
43027 Ohio Licking Homer 1
43028 Ohio Knox Howard 1
43029 Ohio Union Irwin 1
43030 Ohio Licking Jacksontown 1
43031 Ohio Licking Johnstown 1
43032 Ohio Delaware Kilbourne 1
43033 Ohio Licking Kirkersville 1
43035 Ohio Delaware Lewis Center 1
43036 Ohio Union Magnetic Springs 1
43037 Ohio Knox Martinsburg 1
43040 Ohio Union Marysville 1
43041 Ohio Union Marysville 1
43044 Ohio Champaign Mechanicsburg 1
43045 Ohio Union Milford Center 1
43046 Ohio Fairfield Millersport 1
43047 Ohio Champaign Mingo 1
43048 Ohio Knox Mount Liberty 1
43050 Ohio Knox Mount Vernon 1
43054 Ohio Franklin New Albany 1
43055 Ohio Licking Newark 1
43056 Ohio Licking Heath 1
43058 Ohio Licking Newark 1
43060 Ohio Champaign North Lewisburg 1
43061 Ohio Delaware Ostrander 1
43062 Ohio Licking Pataskala 1
43064 Ohio Madison Plain City 1
43065 Ohio Delaware Powell 1
43066 Ohio Delaware Radnor 1
43067 Ohio Union Raymond 1
43068 Ohio Franklin Reynoldsburg 1
43070 Ohio Champaign Rosewood 1
43071 Ohio Licking Saint Louisville 1
43072 Ohio Champaign Saint Paris 1
43073 Ohio Licking Summit Station 1
43074 Ohio Delaware Sunbury 1
43076 Ohio Perry Thornville 1
43077 Ohio Union Unionville Center 1
43078 Ohio Champaign Urbana 1
43080 Ohio Licking Utica 1
43081 Ohio Franklin Westerville 1
43082 Ohio Delaware Westerville 1
43083 Ohio Champaign Westville 1
43084 Ohio Champaign Woodstock 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.