ZIP Code™ Lookup | USPS
Enter a corporate or residential street address, city, and state to see a specific ZIP Code ™. Find by Address By City and State
Home | United States ZIP Code 5 Plus 4 ️
Each 9-digit ZIP Code corresponds to one or more addresses within the U.S. territories. Additionally, this site offers several address-related tools, including address validation, full ZIP …
ZIP+4 Code lookup | Get last 4 digits of 9-digit ZIP Codes
Find ZIP+4 Codes for any USPS address. Lookup ZIP+4 Codes by single address, batch, or API. Learn what they are and what they mean too. Use it free.
United States ZIP Codes – ZIP Code Lookup by Address
ZIP Codes for United States. Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.
ZIP+4 Lookup Tool (USPS-Powered 9-Digit ZIP Code Finder)
Enter a full mailing address to get the correct 9-digit ZIP+4 code and USPS-standardized address format. Free tool powered by official USPS data.
Why Do Some ZIP Codes Have 9 Digits? - LegalClarity
Aug 10, 2025 · In 1983, the USPS introduced an extended version of the ZIP Code, known as ZIP+4, to enhance mail sorting and delivery precision. This system appends four additional …
Zip/Postal Code Lookup by Address, City, State
Find any zip code (including ZIP+4 - full 9-digit US zip codes) or postal code in the world by using our simple lookup function. Enter the address, city, state, province, or country into the search …