Why Does My Zip Code Have 4 Extra Numbers?

What are the last four digits of my zip code?

The first part is the first five digits of the zip code which indicates the destination post office or delivery area.

The last 4 digits of the nine-digit ZIP Code represents a specific delivery route within that overall delivery area.

All 9-digits of full zip codes assist the USPS in effectively sorting the mail..

What is the second set of numbers in a zip code?

Each number of a zip code corresponds to a specific piece of information about the destination. The first number, between 0-9, denotes a geographic area of the U.S. The second two numbers of a zip code specify a specific region within that geographic area and the last two are meant to indicate a specific Post Office.

What is a ZIP 4 code and how is it different from a 5 digit zip code?

What is a zip+4 code, and how is it different from a 5 digit zip code? A more detailed mailing code consisting of the original 5 zip code digit followed by a hyphen and four additional digits. These digits identify a specific geographic segment in delivery area.

What does the zip code mean?

Zone Improvement PlanA ZIP Code is a postal code used by the United States Postal Service (USPS). … The term ZIP is an acronym for Zone Improvement Plan; it was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address.

How often are ZIP codes added?

The +4 on a ZIP code can be changed as frequently as once a month, based on things like how many postal employees are working, who is working what route, etc. A ZIP code is a postal code used by the United States Postal Service (USPS) in a system it introduced in 1963.

How is a ZIP code determined?

As of 1963, zip codes’ numbers are determined by a few factors: the area, the regional postal facility and the local zone. … The final two digits signify the local post office of the address. You may have noticed that zip codes often have a hyphenated four-digit number on the back end which is rarely used.

How many zip 4 codes are there in the US?

There are nearly 42,000 ZIP Codes in the country.

Is postal code the same as zip code?

A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.

How many zip 4 codes are there?

The National ZIP+4 Address Database consists of 929 separate address files in fixed-length ASCII format, organized by 3-digit ZIP code.

Do ZIP codes cross state lines?

ZIP Codes are Lines, Not Shapes In fact, since they are designed only to increase mailing efficiency, ZIP Codes can and do cross county and state boundaries. For example: 42223 spans Christian County, Kentucky, and Montgomery County, Tennessee. 97635 includes portions of Lake County, Oregon, and Modoc County, …

Are all ZIP codes 5 digits?

U.S. ZIP Codes are always five digits long. These 3 and 4 digit numbers actually begin with one or two zeros. For example, when you see “501” for Holtsville, it’s really 00501. As a default, Excel converts this column into a number and removes the leading zeros.

How do I change my zip code?

Any proposal for change must be submitted in writing to the district manager. The district manager is to work with the local postal managers, headquarters delivery, and headquarters Address Management System to evaluate the request and determine if an accommodation can be made.