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
43952 Ohio Jefferson Steubenville 1
43953 Ohio Jefferson Steubenville 1
43961 Ohio Jefferson Stratton 1
43962 Ohio Columbiana Summitville 1
43963 Ohio Jefferson Tiltonsville 1
43964 Ohio Jefferson Toronto 1
43967 Ohio Belmont Warnock 1
43968 Ohio Columbiana Wellsville 1
43970 Ohio Jefferson Wolf Run 1
43971 Ohio Jefferson Yorkville 1
43972 Ohio Belmont Bannock 1
43973 Ohio Harrison Freeport 1
43974 Ohio Harrison Harrisville 1
43976 Ohio Harrison Hopedale 1
43977 Ohio Belmont Flushing 1
43981 Ohio Harrison New Athens 1
43983 Ohio Belmont Piedmont 1
43984 Ohio Harrison New Rumley 1
43985 Ohio Belmont Holloway 1
43986 Ohio Harrison Jewett 1
43988 Ohio Harrison Scio 1
44001 Ohio Lorain Amherst 1
44003 Ohio Ashtabula Andover 1
44004 Ohio Ashtabula Ashtabula 1
44005 Ohio Ashtabula Ashtabula 1
44010 Ohio Ashtabula Austinburg 1
44011 Ohio Lorain Avon 1
44012 Ohio Lorain Avon Lake 1
44017 Ohio Cuyahoga Berea 1
44021 Ohio Geauga Burton 1
44022 Ohio Cuyahoga Chagrin Falls 1
44023 Ohio Geauga Chagrin Falls 1
44024 Ohio Geauga Chardon 1
44026 Ohio Geauga Chesterland 1
44028 Ohio Lorain Columbia Station 1
44030 Ohio Ashtabula Conneaut 1
44032 Ohio Ashtabula Dorset 1
44033 Ohio Geauga East Claridon 1
44035 Ohio Lorain Elyria 1
44036 Ohio Lorain Elyria 1
44039 Ohio Lorain North Ridgeville 1
44040 Ohio Cuyahoga Gates Mills 1
44041 Ohio Ashtabula Geneva 1
44044 Ohio Lorain Grafton 1
44045 Ohio Lake Grand River 1
44046 Ohio Geauga Huntsburg 1
44047 Ohio Ashtabula Jefferson 1
44048 Ohio Ashtabula Kingsville 1
44049 Ohio Lorain Kipton 1
44050 Ohio Lorain Lagrange 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.