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A valid postal code depends on where you live. The specific order of the numbers of a ZIP code are important and can be used to help identify what state an individual lives in and where their mail is sorted. The first three digits of a ZIP code correspond to the central mail processing facility used to sort the mail.

The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits. The first five digits represent the 5-digit ZIP Code; the sixth and seventh digits (the first two after the hyphen) identify an area known as a sector; the eighth and ninth digits identify a smaller area known as a segment.

First introduced in 1963, ZIP Code is a trademark of the USPS created to coordinate mail handling and delivery.

Census tracts have well known/exact boundaries. ZIP codes are groups of lines whose exact structural definition is not officially established.

ZIP Codes are 5-digit numbers developed by the United States Postal Service to represent individual post offices across the United States. "ZIP Code" is the name of the postal code system for the United States. Like the US, most countries have their own postal code system names.

ZIP Codes Business Patterns provides annual statistics for businesses with paid employees within the U.S. at the ZIP Code level. Information is available on the number of establishments, employment, first quarter payroll, and annual payroll.

The most complete ZIP Code is a nine-digit number consisting of five digits, a hyphen, and four digits, which the USPS describes by its trademark ZIP+4. The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits.

USPS Trademarks means the USPS-owned trademark LACSLink and registered trademarks UNITED STATES POSTAL SERVICE®, POSTAL SERVICE™, U. S. POSTAL SERVICE®, and USPS®.

A valid postal code depends on where you live. The specific order of the numbers of a ZIP code are important and can be used to help identify what state an individual lives in and where their mail is sorted. The first three digits of a ZIP code correspond to the central mail processing facility used to sort the mail.

The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits. The first five digits represent the 5-digit ZIP Code; the sixth and seventh digits (the first two after the hyphen) identify an area known as a sector; the eighth and ninth digits identify a smaller area known as a segment.

First introduced in 1963, ZIP Code is a trademark of the USPS created to coordinate mail handling and delivery.

Census tracts have well known/exact boundaries. ZIP codes are groups of lines whose exact structural definition is not officially established.

ZIP Codes are 5-digit numbers developed by the United States Postal Service to represent individual post offices across the United States. "ZIP Code" is the name of the postal code system for the United States. Like the US, most countries have their own postal code system names.

ZIP Codes Business Patterns provides annual statistics for businesses with paid employees within the U.S. at the ZIP Code level. Information is available on the number of establishments, employment, first quarter payroll, and annual payroll.

The most complete ZIP Code is a nine-digit number consisting of five digits, a hyphen, and four digits, which the USPS describes by its trademark ZIP+4. The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits.

USPS Trademarks means the USPS-owned trademark LACSLink and registered trademarks UNITED STATES POSTAL SERVICE®, POSTAL SERVICE™, U. S. POSTAL SERVICE®, and USPS®.