science

List of postal codes

List of postal codes is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of postal codes rather than just read about it. In short: This list shows an overview of postal code notation schemes for all countries that have postal or ZIP Code systems. List The Area format is used for large regions, such as municipalities.

Key takeaways

List of postal codes belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of postal codes to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of postal codes from memory before moving on to harder problems.

Reference excerpt

This list shows an overview of postal code notation schemes for all countries that have postal or ZIP Code systems.

List

The Area format is used for large regions, such as municipalities. The Street level format is used for more specific locations, like streets or blocks. Not all countries use both formats. When both are available, the Area format usually serves as a prefix to the Street level format.

Legend A = letter N = number ? = letter or number CC = ISO 3166-1 alpha-2 country code

On the use of country codes The use of the country codes in conjunction with postal codes started as a recommendation from CEPT (European Conference of Postal and Telecommunications Administrations) in the 1960s. In the original CEPT recommendation the distinguishing signs of motor vehicles in international traffic ("car codes") were placed before the postal code, and separated from it by a "-" (dash). Codes were only used on international mail and were hardly ever used internally in each country. Since the late 1980s, however, a number of postal administrations have changed the recommended codes to the two-letter country codes of ISO 3166. This would allow a universal, standardized code set to be used, and bring it in line with country codes used elsewhere in the UPU (Universal Postal Union). Attempts were also made (without success) to make this part of the official address guidelines of the UPU. Recently introduced postal code systems where the UPU has been involved have included the ISO 3166 country code as an integral part of the postal code. At present there are no universal guidelines as to which code set to use, and recommendations vary from country to country. In some cases, the applied country code will differ according to recommendations of the sender's postal administration. UPU recommends that the country name always be included as the last line of the address. In the list above, the following principles have been applied:

Integral country codes have been included in the code format, in bold type and without brackets. These are also used on internal mail in the respective countries. The ISO 3166 codes is used alone for countries that have explicitly recommended them. Where there is no explicit recommendation for ISO 3166 codes and the codes differ, both "car codes" and ISO 3166 codes are listed, with the "car code" listed first. In some countries, such as Zimbabwe and Zambia, a system is being planned. 1 10 and 11 used to be used as postal codes for Harare, Zimbabwe but a four-digit code system such as 2401 for Zimbabwe, 2402 for Epworth and "Overspill Road," as well as the suburb of "Zinnia Close and Gardenia Close" are given the provisional postal code of 2401. 2501 is the planned postal code for Bulawayo and 2423 for Victoria Falls.

See also Universal Postal Union International Postcode system using Cubic Meters (CubicPostcode.com) International Postcodes database (mapanet.eu)

References

Footnotes

Notations "Postal addressing systems in member countries". Berne: Universal Postal Union. Retrieved 11 January 2018.

Worked examples

Example 1 — a first encounter with List of postal codes

Start with the simplest possible case. Write down what List of postal codes claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of postal codes before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of postal codes ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of postal codes

In research: List of postal codes appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of postal codes in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of postal codes is common in secondary-school and first-year university syllabi. It links to neighbouring topics Communication-related lists by country, Geocodes, Lists of postal codes, so understanding it makes those chapters shorter.
In everyday life: Look for List of postal codes outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of postal codes in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of postal codes means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of postal codes out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of postal codes in simple terms?

This list shows an overview of postal code notation schemes for all countries that have postal or ZIP Code systems. List The Area format is used for large regions, such as municipalities.

Why does List of postal codes matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of postal codes?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of postal codes.