US United States Major Regions Postal Code Details
๐๏ธ Saint Louis ยท Missouri
63123
Affton
63025
Allenton
63022
Ballwin
63121
Bel Nor
63121
Bel Ridge
63125
Bella Villa
63137
Bellefontaine Neighbors
63121
Bellerive
63134
Berkeley
63121
Beverly Hills
63033
Black Jack
63114
Breckenridge Hills
63144
Brentwood
63044
Bridgeton
63044
Bridgeton Terrace
63135
Burke City
63025
Byrnes Mill
63135
Calverton Park
63114
Charlack
63017
Chesterfield
63017
Clarkson Valley
63124
Clayton
63136
Country Club Hills
63131
Country Life Acres
63025
Crescent
63126
Crestwood
63141
Creve Coeur
63131
Crystal Lake Park
63136
Dellwood
63131
Des Peres
63045
Earth City
63134
Edmundson
63038
Ellisville
63025
Eureka
63099
Fenton
63135
Ferguson
63136
Flordell Hills
63032
Florissant
63131
Frontenac
63137
Glasgow Village
63137
Glasgow Vlg
63038
Glencoe
63122
Glendale
63123
Green Park
63133
Greendale
63040
Grover
63005
Gumbo
63133
Hanley Hills
63042
Hazelwood
63025
Hoene Spring
63131
Huntleigh
63136
Jennings
63140
Kinloch
63122
Kirkwood
63025
La Barque Crk
63124
Ladue
63040
Lake Chesterfield
63145
Lambert Airport
63145
Lambert Arprt
63125
Lemay
63011
Manchester
63143
Maplewood
63099
Maritz Inc
63043
Maryland Heights
63129
Mehlville
63136
Moline Acres
63167
Monsanto
63026
Murphy
63121
Normandy
63137
North County
63074
Northwest Plaza
63121
Northwoods
63122
Oakland
63129
Oakville
63132
Olivette
63114
Overland
63133
Pagedale
63121
Pasadena Hills
63121
Pasadena Park
63040
Pond
63117
Richmond Heights
63137
Riverview
63042
Robertson
63119
Rock Hill
63074
Saint Ann
63114
Saint John
63132
Saint Louis
63127
Sappington
63021
Sherman
63119
Shrewsbury
63138
Spanish Lake
63127
Sunset Hills
63025
Times Beach
63017
Town And Country
63088
Twin Oaks
63130
University City
63088
Valley Park
63121
Velda Village Hills
63042
Vigus
63114
Vinita Park
63122
Warson Woods
63119
Webster Groves
63133
Wellston
63131
Westwood
63123
Wilbur Park
63040
Wildwood
63021
Winchester
63134
Woodson Terrace
๐ฎUS United States Regional Postal Code FAQ & Postal Regulations
๐ฎ What is the format of a US ZIP code?
Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.
๐ How to find the ZIP code for an address?
Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.
โ ๏ธ What happens if I use a wrong ZIP code?
Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.
๐ Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
๐ฆ Is a ZIP code required for international mail to the US?
Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).