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
39301 Mississippi Lauderdale Meridian 1
39302 Mississippi Lauderdale Meridian 1
39303 Mississippi Lauderdale Meridian 1
39304 Mississippi Lauderdale Meridian 1
39305 Mississippi Lauderdale Meridian 1
39307 Mississippi Lauderdale Meridian 1
39309 Mississippi Lauderdale Meridian 1
39320 Mississippi Lauderdale Bailey 1
39322 Mississippi Wayne Buckatunna 1
39323 Mississippi Newton Chunky 1
39324 Mississippi Wayne Clara 1
39325 Mississippi Lauderdale Collinsville 1
39326 Mississippi Lauderdale Daleville 1
39327 Mississippi Newton Decatur 1
39328 Mississippi Kemper De Kalb 1
39330 Mississippi Clarke Enterprise 1
39332 Mississippi Newton Hickory 1
39335 Mississippi Lauderdale Lauderdale 1
39336 Mississippi Newton Lawrence 1
39337 Mississippi Newton Little Rock 1
39338 Mississippi Jasper Louin 1
39339 Mississippi Winston Louisville 1
39341 Mississippi Noxubee Macon 1
39342 Mississippi Lauderdale Marion 1
39345 Mississippi Newton Newton 1
39346 Mississippi Winston Noxapater 1
39347 Mississippi Clarke Pachuta 1
39348 Mississippi Jasper Paulding 1
39350 Mississippi Neshoba Philadelphia 1
39352 Mississippi Kemper Porterville 1
39354 Mississippi Kemper Preston 1
39355 Mississippi Clarke Quitman 1
39356 Mississippi Jasper Rose Hill 1
39358 Mississippi Kemper Scooba 1
39359 Mississippi Scott Sebastopol 1
39360 Mississippi Clarke Shubuta 1
39361 Mississippi Noxubee Shuqualak 1
39362 Mississippi Greene State Line 1
39363 Mississippi Clarke Stonewall 1
39364 Mississippi Lauderdale Toomsuba 1
39365 Mississippi Neshoba Union 1
39366 Mississippi Jasper Vossburg 1
39367 Mississippi Wayne Waynesboro 1
39401 Mississippi Forrest Hattiesburg 1
39402 Mississippi Forrest Hattiesburg 1
39403 Mississippi Forrest Hattiesburg 1
39404 Mississippi Forrest Hattiesburg 1
39406 Mississippi Forrest Hattiesburg 1
39407 Mississippi Forrest Hattiesburg 1
39421 Mississippi Jefferson Davis Bassfield 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.