what does the zip in zip code stand for
Zone Improvement Plan
title: ZIP Code text: ZIP Code A ZIP Code is a postal code used by the United States Postal Service (USPS) in a system it introduced in 1963. 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. The basic format consists of five digits. An extended ZIP+4 code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that reference a more specific location. The term "ZIP Code" title: ZIP Code text: pump or vending machines. ZIP Code A ZIP Code is a postal code used by the United States Postal Service (USPS) in a system it introduced in 1963. 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. The basic format consists of five digits. An extended ZIP+4 code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that reference a more specific location. title: ZIP Code text: was originally registered as a servicemark by the U.S. Postal Service, but its registration has since expired. The early history and context of postal codes began with postal district/zone numbers. The United States Post Office Department (USPOD) implemented postal zones for numerous large cities in 1943. For example: Mr. John Smith 3256 Epiphenomenal Avenue Minneapolis "16", Minnesota The "16" was the number of the postal zone from the specific city. By the early 1960s, a more organized system was needed, and non-mandatory five-digit ZIP Codes were introduced nationwide on July 1, 1963. The USPOD issued its "Publication 59: Abbreviations for title: ZIP Code text: are only examples, as each of these cities contain several ZIP Codes in the same range). From there, the numbers increase heading westward and northward east of the Mississippi River, southward west of the Mississippi River, and northward on the West Coast. For example, 40202 is in Louisville, 50309 in Des Moines, 60601 in Chicago, 63101 in St. Louis, 77036 in Houston, 80202 in Denver, 94111 in San Francisco, 98101 in Seattle, and 99950 in Ketchikan, Alaska (the highest ZIP Code). The first digit of the ZIP Code is allocated as follows: The next two digits represent the sectional center title: Postal code text: Postal code A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, Eircode, PIN code 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. In February 2005, 117 of the 190 member countries of the Universal Postal Union had postal code systems. Although postal codes are usually assigned to geographical areas, special codes are sometimes assigned to individual addresses or to institutions that receive large volumes of mail, such as government agencies and