What year were zip codes introduced?
111169
ZIP Code is the postal code used by the United States Postal Service, which always writes ZIP with capital letters. ZIP is an acronym for the Zone Improvement Plan, but was also meant to suggest that mail travels more efficiently (and therefore faster) when senders use it. The basic ZIP Code format consists of five numerical digits. An extended ZIP+4 code includes the five digits of the ZIP Code plus four more digits which allow a piece of mail to be even more accurately directed to a very small geography. ZIP Code was originally registered as a trademark by the U.S. Postal Service, but its registration has since expired.\n\nThe term "ZIP Code" is also used in the Philippines to name its postal codes. The Philippine ZIP Code is used by the Philippine Postal Corporation. Unlike American ZIP Codes, Philippine ZIP Codes are four-digit numbers without any extensions. While the cities of Metro Manila use more than one code, towns and cities outside Metro Manila are assigned only one code for every town and city.\n\nThe postal service implemented postal zones for large cities in 1943. For example:\n\nJohn Smith\n3256 Epiphenomenal Avenue\nMinneapolis 16, Minnesota\nThe "16" is the number of the postal zone within the city.\n\nBy the early 1960s a more general system was needed, and on July 1, 1963, non-mandatory ZIP Codes were announced for the whole country. Robert Moon, an employee of the post office, is considered the father of the ZIP Code. He first submitted his proposal in 1944 while working as a postal inspector. The post office only gives credit to Moon for the first 3 digits of the ZIP Code, which describe the region of the country.\n\nIn most cases, the last two digits of the ZIP Code coincide with the older postal zone number, thus:\n\nJohn Smith\n3256 Epiphenomenal Avenue\nMinneapolis, Minnesota 55416\nIn 1967, these were made mandatory for second- and third-class bulk mailers and the system was soon adopted generally. The United States Post Office used a cartoon character, Mr. ZIP, to promote use of the ZIP Code in the 1970s.\n\nPostal abbreviations\nIn addition, two-letter abbreviations were introduced for states, eliminating the need to write the state's name out in full. For example, California is CA. Abbreviations are also assigned for U.S. territories like Puerto Rico (PR) and American Samoa (AS), as well as for several former U.S. Trust Territories in the Pacific, such as the Federated States of Micronesia (FM), which are now separate countries.\n\nSimilarly, US military addresses also have their own abbreviations. Mail to these addresses is sent to the Army (or Air Force) Post Office (APO) or Fleet Post Office (FPO). This may also be used for mail to many US diplomatic missions overseas.\n\nZIP+4\nIn 1983, the US Postal Service began using an expanded ZIP Code system called "ZIP+4", which are often called "plus-four codes" or "add-on codes." A ZIP+4 code uses the basic 5-digit ZIP plus an additional 4-digits to identify a geographic segment within the 5-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail, or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery. Use of the plus-four code is not required except for certain presorted mailings. In general, mail is read by a Multiline Optical Character Reader (MLOCR) that instantly determines the correct ZIP+4 code from the address and—along with the even more specific Delivery point—sprays an 11-digit POSTNET barcode on face of the mailpiece. This technology has greatly increased the speed and accuracy of mail delivery and in turn, kept costs nearly constant for over a decade.\n\nFor Post Office boxes, the general (but not invariable) rule is that each box has its own ZIP+4 code. The add-on code is often either the last four digits of the box number or 0 plus the last three digits of the box number. However, the
1107612
Washington DC has several zip codes.  Go to the post office web site and type in the address.  It will give you the zip code.
446316
I think 1947\nCheck out the website below
460800
Zip in zip code is the acronymn for:\n\nZone Improvement Plan
55823
A zip code is that set of numbers that represent where you live in the postal regions...\nThis is so they know about where you live in the world...
569567
Boston has 65 ZIP Codes...  Here they are:\n02101, 02102, 02103, 02104, 02105, 02106, 02107, 02108, 02109, 02110, 02111, 02112, 02113, 02114, 02115, 02116, 02117, 02118, 02119, 02120, 02121, 02122, 02123, 02124, 02125, 02126, 02127, 02128, 02129, 02130, 02131, 02132, 02133, 02134, 02135, 02136, 02137, 02163, 02196, 02199, 02201, 02202, 02203, 02204, 02205, 02206, 02207, 02208, 02209, 02210, 02211, 02212, 02215, 02216, 02217, 02222, 02228, 02241, 02266, 02283, 02284, 02293, 02295, 02297, 02455\n\nBoston has 2 Area Codes:\n617 & 781 prefix
189997
Ask the postal service, either by phone, online or in person. In some areas, there are 2 or more zipe codes, so you have to know your street and section of town. If you know that part, but want to know all the zipcodes, buy a book-there is/or used to be abook you could buy on zipcodes. But you still have to ask the postal service.
1089065
I live in Sunderland too. We don't live in a state, we live in Tyne & Wear. A zip code is the equivalent to a post code and all post codes in Sunderland begin with SR.
81752
There are a lot of different zip codes in California.  It depends on where in California.
715645
Dublin, Ireland does not have a postal zip code, but will have one introduced by 2008.  Check out the link to Wikipedia for more information.
509270
I think you're asking how to find the zip codes?\nIf that is your question go to www.usps.com (the U.S. Postal Service website) There you can look up the Zip codes.
34788
Zip codes for San Diego:  http://zip4.usps.com/zip4/zcl_1_results.jsp\n\nZip codes for Los Angeles:\nhttp://zip4.usps.com/zip4/zcl_1_results.jsp
176665
Every Zip code in the USA is unique, but there isn't 1 zip code for every address in the country.  Typically in urban areas, zip codes correspond to one side of a city block, but this can varry depending on population density.\n\nElectronic sorting machines at the post office actually only read the zip code to sort the mail into delivery routes for each letter carrier.  The letter carrier would read the street address to know which house to deliver the mail to.  In theory, you could just put the street number and zip code and it will still make it thorugh, but if for any reason, the address can't be read, the post office can use this duplicate information to figure out where your letter should go.
108638
There are different zipcodes for every city and town, so you need to have a specific location in mind in order to find the zipcode you need.
315487
A PIN code is a Personal Identification Number. They are used as a password.\nA ZIP code is the Zone Improvement Plan code. ZIP codes designate specific geographic region in the United States: some as small as a few dozen city blocks, some over 100 square miles. ZIP codes are the US equivalent to Postal Codes in other countries. Many cities have multiple zip codes, but you can find ZIPs by City at the link below
687973
www.usps.com, zip code finder.
1003226
dont know....i dont think there is such a zip code out there.