I need zip code of united state: United States Zip Codes

USA ZIP Codes Complete List – United States Postal Codes

In the United States, ZIP codes ( also called Postal codes) are five-digit codes that are used to identify specific geographical areas for mail delivery. There are a total of 9,223 ZIP codes in the United States, each with its own unique range of numbers. In this guide, we will provide an updated list of all American ZIP codes organized by state. This information can be useful when searching for contact information within the United States. The list will include ZIP codes for popular states such as New York, Texas, California, and Florida. Whether you’re mailing a letter or package, it’s important to know the correct ZIP code for your destination. This guide aims to make that process easier by providing an organized and comprehensive list of all American ZIP codes by state.

What is a Zip/Postal Code?

A Zip or Postal code is a system of codes used to identify specific geographic areas for the purpose of mail delivery. The term “Zip” is used primarily in the United States, while “Postal code” is used in other countries. The code is usually composed of a combination of numbers and letters, and its length can vary depending on the country.

In the United States, ZIP codes were first introduced in 1963 by the United States Postal Service (USPS). The ZIP stands for “Zoning Improvement Plan,” and the codes were created as a way to improve the efficiency of mail delivery. There are a total of 9,223 ZIP codes in the United States, each with its own unique range of numbers. The codes are typically five digits long, and they are used to identify specific geographical areas.

In other countries, Postal codes vary in format and length. For example, in Canada, the postal code is six characters long, and it is composed of alternating letters and numbers. In the United Kingdom, the postal code is called a “postcode,” and it is typically composed of two or three letters followed by a space and then four numbers.

The use of Zip or Postal codes allows for more accurate and efficient mail delivery. It helps mail carriers to sort and deliver mail more quickly, and it also helps businesses and individuals to more easily direct mail to the correct location. Additionally, it helps to improve the accuracy of marketing and demographic data analysis by providing information about specific areas.

Why are Zip Codes Important?

Zip/Postal Codes are used to identify specific geographic areas and help to improve the efficiency of mail delivery. Zip codes are important for a number of reasons.

First and foremost, Zip codes allow for more accurate and efficient mail delivery. They help mail carriers to sort and deliver mail more quickly, and they also help businesses and individuals to more easily direct mail to the correct location. This improves the delivery time of mail and packages, and ensures that they reach their intended recipients in a timely manner.

Another important aspect of Zip codes is that they help to improve the accuracy of marketing and demographic data analysis. By providing information about specific areas, Zip codes allow businesses to better target their marketing efforts and understand the demographics of their customer base. This can be especially useful for businesses looking to expand into new areas or for those that rely on direct mail marketing.

Zip codes also play an important role in emergency services and response. Emergency services such as fire and ambulance services rely on accurate address information to respond quickly and efficiently to calls for help. Zip codes help to ensure that emergency services are able to locate the correct address in a timely manner, which can be critical in emergency situations.

In addition, Zip codes are also important for online services and e-commerce. They are often used as a means of verifying a customer’s location, and they are also used to calculate shipping and handling fees for online purchases.

USA ZIP Codes & Postal Codes Complete List

Zipcodes are 5-digit codes used by the US Postal Service to find the location of a USPS deliverable address. The codes are grouped by state and by urban or rural areas within each state.

Here is the complete list of all the states in the United States of America and their various Zip codes listed below:

Here is the complete list of all the states and it capital citys in the United States of America and their various Zip codes listed below:

This post contained a complete list of all USA zip codes and more informations.

ZIP Codes For Minor Outlying Islands & Other Territories Of The United States 

The United States is composed of not only the contiguous 48 states, but also several overseas territories. These territories, while considered part of the United States, are located outside of the mainland. Some examples of these territories include American Samoa, Guam, and the Northern Mariana Islands in the Pacific Ocean, Puerto Rico and the US Virgin Islands in the Caribbean Sea, and several islands in the South Pacific Ocean, such as Baker Island, Howland Island, Jarvis Island, Johnston Atoll, and Palmyra Atoll. The United States Postal Service (USPS) assigns ZIP codes to these territories to facilitate mail delivery. It is important to note that the ZIP codes for these territories are different from the ZIP codes of the contiguous 48 states and therefore should be used accordingly when addressing mail or packages to these territories.

If you only need one state, the entire collection comes together in a single file. If you need multiple states, it is recommended you download them individually to minimize redundancy between sets.

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ZIP+4 Code™ Lookup – Last 4 Digits of ZIP Codes Meaning/Use

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The last 4 digits of the ZIP Code represent delivery route segments within delivery areas and generally consist of 10-20 mailboxes. For example, a ZIP+4 could …

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ZIP Code™ Lookup – USPS Tracking

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Enter a corporate or residential street address, city, and state to see a specific ZIP Code™. … Enter city and state to see all the ZIP Codes™ for that city.

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ZIP Code – Wikipedia

en. wikipedia.org › wiki › ZIP_Code

A ZIP Code is a postal code used by the United States Postal Service (USPS). Introduced on July 1, 1963, the basic format consisted of five digits.

What is a ZIP +4 Code?

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Free ZIP code map, zip code lookup, and zip code list

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What are ZIP+4 Codes and why should you care? – ProvenWorks

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What is Zip Code 4? – Quora

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Nigeria Postcode List 2020 Check All Postcodes For All States : Current School News

Filed in Teaching
by Editorial staff
September 5, 2020

Nigeria Postcode List 2020 Check all postcodes for all states.

Nigeria Postcode List 2020: This page contains the complete postcode list of all states of Nigeria 2020. Nigeria is divided into six geopolitical zones, each with the same ethnicity and origin, cultural traditions and history. nine0011

Below you will find a complete list of postcodes for all states in Nigeria. Keep reading.

ZIP is an acronym for Zone Improvement Plan. This is the system used by the United States Postal Service, as 1963 is used for the same purposes as postal codes in other countries. This means that zip codes are only used in the United States, while other countries refer to this pattern as zip codes. nine0003

One mistake that most people make when filling out online forms in Nigeria is using the Nigeria country calling code (+234), also known as international dialing code, to fill in postal or zip codes when prompted. In fact, I actually made the same mistake a few years ago.

Correct postal code or zip code in Nigeria

Now when you are asked to enter your country’s zip code, you don’t actually have to start searching for, say, Lagos zip code, Abuja zip code, Port Harcourt zip code, or any other city or postal code. state index. All you have to do is fill in the postal code assigned to Nigeria internationally. You can use 110001, 23401 or 00176 . Any of these will work, or at least one will work in your situation.

I am now returning home. The Nigerian Postal Code, developed by NIPOST (Nigerian Postal Service), usually consists of 6 digits. NIPOST has divided the country into 9 regions, so you may have to see the postal code in Nigeria starting from 1 to 9. The second and third digits combined with the first digit refer to the dispatch area for outbound sorting. Now, speaking of the last three digits, they refer to the exact location in the region where the post should be placed. nine0003

Below is a list of Nigerian postcodes for states in Nigeria. Please note that the postal code for Nigeria is 23401, in case you are asked to complete any form and need to provide the Nigerian postal code.

• Abuja
  

  1

• Lagos (Island) 101001
• Lagos (Mainland) 100001
• Niger 920001
• Ogun 110001
• Abia 440001
• Sokoto 840001
• Borno 600001
• Delta 320001
• Edo 300001
• Ondo 340001

Osun

• 230001
• Oyo 200001
• Plateau 930001
• Rivers 500001
• Enugu 400001
• imo 460001
• Jigawa 720001

nine0037 Kano 700001

• Kaduna 800001
• Kvara 240001
• Taraba 660001
• Yobe 320001
• Ebonyi 840001
• Katsina 820001
• Kebby 860001

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Ideal zip code

Igor Akulich
“Quantik” No. 1, 2015

Back in 1971, the Ministry of Communications (then the USSR) introduced postal codes. In other words, each post office was assigned its own unique six-digit numeric index, and a special template appeared on the envelopes – the so-called code stamp containing blanks for six digits:

It was necessary to circle the necessary lines in blue or black to form numbers. But circle not as anyone likes, but in accordance with the sample that was on the back of the envelope:

When processing correspondence, envelopes were passed through a sorting machine with an optical sensor, which determined their future fate – where which envelope would go. This innovation made it possible to significantly speed up the delivery of letters (the proof of the effectiveness of the system is the fact that it is still used, for example, in Russia).

But why do the images of numbers look exactly like on the sample? After all, most of them could have been drawn differently. Were they really created by a designer unknown to us, as they say, “from a lantern”, if only they outwardly resemble familiar symbols? nine0003

One of those who tried to give a scientifically substantiated answer to this question was Yaroslav Karpov (then still a tenth grader from then still Leningrad), who published the article “Optimal coding of a postal code” on the pages of the 11th issue of Kvant for 1987. He proceeded from the following assumptions. The sorting machine can, although with a very low probability, make mistakes, and not only and even not so much due to a malfunction of the equipment itself, but due to the negligence of a person when filling out a code stamp (curved lines, too pale color, etc.) . If the machine makes a mistake in recognizing any digit, then this can lead to one of two outcomes:

1. The erroneous image received by the device does not match any of the other digits. This, of course, is unpleasant, but not fatal – such a letter will be redirected to manual sorting, and the delay in the passage of correspondence will not be too big.
2. The erroneous image received by the device will match one of the other numbers. This is much worse because the letter will be sent to a different location. Considering the geographical scale of the state (then, and even the current one), it is easy to understand that it will take a lot of time until they figure it out and fix everything. nine0040

Therefore, the most important task of the developers of the index system should have been to minimize the probability of mistaking one figure for another. Perhaps this is precisely the appearance of the numbers in the indexes?

To test his guess, Yaroslav Karpov first depicted all sorts of ways to represent numbers in an acceptable way. Here’s what he got:

Of these, you can make only 1 2 4 3 2 2 2 3 1 2 = 1152 options for ten digital “sets”. Further, Karpov introduced the concept of “distance between encodings”, equal to the number of mismatched segments when depicting different numbers. Take, for example, the currently accepted image of the numbers 2 and 5. The distance between the encodings of these numbers is 5, since they have 5 non-coincident segments (i.e., such that one of the numbers has a corresponding segment drawn, and the other has a No). And, say, the distance between the encodings of the numbers 0 and 8 is only 1, because they have a discrepancy in a single segment – the middle horizontal one. nine0003

Denote by p the probability that the automaton will accept the drawn segment as “not drawn” or vice versa. Then the probability of correct recognition of one segment is equal to 1 − р . The probability of mistaking one digit for another is p ^k (1 − p ) ^{9 − k} , where k is the distance between digit encodings, and 9 is the total number of segments. It is understandable – in order to confuse one digit with another, it is necessary that exactly k segments (exactly those in which the images differ) were perceived with an error, and the remaining 9 − k segments were read correctly by the machine. Thus, the device takes a two for a five (or a five for a two) with a probability of p ⁵ (1 − p ) ⁴ . Well, the eight and zero have a chance of being confused with a probability of p (1 − p ) ⁸ .

What’s next? It remains to ask some “reasonable” value p , after which, for each of 1152 sets, find the probability of confusing each pair of digits (and such pairs, as it is easy to see, 10 9/2 = 45) and sum all these probabilities. The amount received can be considered a “quality” criterion: the larger it is, the less likely it is that the letter will be sent to another place when using one or another set.

Yaroslav Karpov did all this using a computer (then still a computer), for various values ​​of r . It turned out that for p ≤ 0.3, the set that is currently used is the best. And since the real value is r obviously does not exceed 0.3 (otherwise the price of such a technique is worthless), it turns out that the system developers followed the same path!

“Of course, it would be more pleasant for me,” notes Yaroslav Karpov in the end, “if my program revealed not the set received at the post office, but another one: then I could offer to replace the accepted set with my own better one. ” Unfortunately, not fate!

…However, much has changed since then. First of all, a lot of illuminated panels appeared in various places (elevators, traffic lights, clocks). And somehow the author of this note caught the eye of another image of the number 1, which is significantly different from those that the then tenth grader “cheated”. Here it is:

As you can see, two left vertical lines are used here, not right ones. And this image is no worse than the other two. And if so, then we have the opportunity to get 576 more sets in addition to those considered. And then it’s a matter of technology (in this case, computing). A computer check using Karpov’s method showed that there are two sets that are superior to those currently used. In the best of them, all numbers are displayed in the same way as before, except for this very unit. In the second one, which is slightly worse (but still superior to the current one), besides one, four is depicted differently (see images above).