US United States Major Regions Postal Code Details
๐๏ธ Mchenry ยท Illinois
60102
Algonquin
60102
Barrington Hills
60050
Bull Valley
60013
Cary
60033
Chemung
60152
Coral
60039
Crystal Lake
60021
Fox River Grove
60098
Greenwood
60033
Harvard
60034
Hebron
60050
Holiday Hills
60142
Huntley
60050
Johnsburg
60102
Lake In The Hills
60051
Lakemoor
60014
Lakewood
60152
Marengo
60050
Mccullom Lake
60050
McHenry
60013
Oakwood Hills
60012
Prairie Grove
60071
Richmond
60012
Ridgefield
60072
Ringwood
60071
Solon Mills
60081
Spring Grove
60050
Sunnyside
60013
Trout Valley
60180
Union
60014
Village Of Lakewood
60051
Volo
60097
Wonder Lake
60098
Woodstock
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).