Postal Codes Of Western Australia: A Guide

what is the postal code of western australia

Postcodes were introduced in Australia in 1967 to replace earlier postal sorting systems. Australian postcodes consist of four digits and are written after the name of the city, suburb, or town, and the state or territory. Western Australia's postal code is 6999. However, some places in Australia do not have postcodes, and some towns and suburbs have two postcodes for street deliveries and post office boxes.

Characteristics Values
Postal Code of Western Australia 6999
Postal Code Range 6000-6152 (Perth)
Date of Introduction 1967
Introduced By Postmaster-General's Department (PMG)
Current Administrator Australia Post
Number of Digits 4
Purpose Efficiently sort and route mail
Use Required for correct delivery

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Postcodes in Western Australia are four digits long

Australian postcodes are sorting information and are often linked with one area. For example, 6160 belongs only to Fremantle, Western Australia. However, due to postcode rationalisation, they can be quite complex, especially in country areas. For instance, 2570 belongs to twenty-two towns and suburbs around Camden, New South Wales. Some postcodes cover large populations, while others have much smaller populations, even in urban areas.

Australian postcodes range from 0200 for the Australian National University (now 2601) to 9944 for Cannonvale, Queensland. Some towns and suburbs have two postcodes—one for street deliveries and another for post office boxes. Postcode squares were introduced in June 1990 to enable Australia Post to use optical character recognition (OCR) software in its mail sorting machines to automatically and more quickly sort mail by postcodes.

When writing an address by hand, the postcode is written in the lower right corner of an envelope, usually in a pre-printed row of four boxes. When posting to an organisation, the business name can be written instead of a recipient name. If an article is intended for a specific identity within an organisation, their identity can be prepended on the line above the business name, with c/- prepended to the business name.

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Postcodes were introduced in 1967

Postcodes in Australia were introduced in 1967 by the Postmaster-General's Department (PMG) to replace earlier postal sorting systems, such as Melbourne's alphanumeric codes. The introduction of postcodes coincided with the introduction of a large-scale mechanical mail sorting system in Australia, starting with the Sydney GPO. The current 4-digit numeric postcode system was introduced alongside the country's first mechanised mail processing centre.

The initial digit of each postcode was copied directly from the previously existing numerical prefixes of Australian radio call signs, which were based on state/territory borders. Over time, the initial digits of postcodes have deviated from the radio system. For example, the 8000 series refers to special addresses in Victoria. It is sometimes incorrectly stated that the initial digits of postcodes corresponded to the geographical boundaries of the official Australian Military Districts that existed from 1911 to 1997. In fact, only the boundaries of the initial 2- and 3-postcodes were ever similar to the former 2nd and 3rd Military Districts, respectively.

By 1968, 75% of mail was using postcodes, and in the same year, post office preferred-size envelopes were introduced. Within each region with the same second numeral, postcodes are usually allocated in ascending order the further one travels from the state's capital city along major highways and railways. For instance, heading north on the North Coast railway in New South Wales away from Sydney, postcodes increase. Major towns and cities tend to have "0" as the last numeral or last two numerals, e.g. Rockhampton, Queensland has the postcode 4700 and Ballarat, Victoria has the postcode 3350.

Australian postcodes are often linked with one area; for example, 6160 belongs only to Fremantle, Western Australia. However, due to postcode rationalisation, they can be quite complex, especially in country areas. For example, 2570 belongs to twenty-two towns and suburbs around Camden, New South Wales. The south-western Victoria 3221 postcode of the Geelong Mail Centre also includes twenty places around Geelong with very few people. This means that mail for these places is not fully sorted until it gets to Geelong. Some postcodes cover large populations, while other postcodes have much smaller populations, even in urban areas.

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Postcodes are placed at the end of an address

Postcodes in Australia were introduced in 1967 by the Postmaster-General's Department (PMG) to replace earlier postal sorting systems. They consist of four digits and are placed at the end of an address, before the country name. For example, a typical address in Australia would be written as:

> John W. Howard

> 144 Turon Parade

> Woolgoolga

> NSW 2456

Here, "NSW" stands for New South Wales, the state, and "2456" is the postcode.

Placing the postcode at the end of the address is in line with the conventions of most English-speaking countries. In continental European countries, however, the postal code typically precedes the name of the city or town. For example, a French address would be structured as follows:

> Anne-Marie Dubois

> 28 avenue Pologne

> 35200 RENNES

Here, "35200" is the postal code and "RENNES" is the city.

The placement of the postal code at the end of the address in English-speaking countries like Australia helps mail carriers identify geographic locations, points of delivery, and mailing routes. Each digit in the postcode relates to the address's location. The first digit refers to the national area or a defined group of states, the second and third digits signify a region, and the fourth and fifth digits represent a region's associate post office or delivery area.

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Postcode squares were introduced in 1990

Postcodes in Australia were introduced in 1967 by the Postmaster-General's Department (PMG) to replace earlier postal sorting systems. They are used to more efficiently sort and route mail in the Australian postal system. Australian postcodes consist of four digits and are placed at the end of the address before the country. They are often linked with one area, for example, 6160 belongs only to Fremantle, Western Australia.

Postcode squares, a set of four boxes printed in the bottom right corner of envelopes, were introduced in June 1990 to enable Australia Post to use optical character recognition (OCR) software in its mail-sorting machines. This technology allowed for the automatic and quick sorting of mail by postcodes. The use of OCR software also embedded routing information.

When writing an address by hand, the postcode may be written in the boxes instead of on the address line. Postcode squares are not to be used for machine-addressed mail or mail going overseas.

The introduction of postcode squares in 1990 was part of an effort to improve the efficiency of mail sorting in Australia, building upon the initial introduction of postcodes in 1967. The use of OCR software and the standardization of postcode placement helped streamline the mail sorting process, reducing potential delays and ensuring the timely delivery of mail items.

Today, postcodes in Western Australia, and across Australia, continue to play a crucial role in efficient mail delivery and are an integral part of the country's postal system. Australia Post provides a postcode finder on its website to help individuals and businesses accurately address their mail and avoid any delays.

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Postcodes are linked to specific areas

Postcodes in Australia were introduced in 1967 by the Postmaster-General's Department (PMG) to replace earlier postal sorting systems. They are used to more efficiently sort and route mail in the Australian postal system. Australian postcodes are four-digit sorting information that is placed at the end of the address before the country. They are often linked with one area, for example, 6160 belongs only to Fremantle, Western Australia. However, due to postcode rationalisation, they can be quite complex, especially in country areas. For instance, 2570 belongs to twenty-two towns and suburbs around Camden, New South Wales.

The first one or two numerals of an Australian postcode usually indicate the state or territory that the postcode belongs to. Postcodes with a second numeral of "0" or "1" are almost always located within the metropolitan area of the state's capital city. Postcodes with higher second numerals are usually located in rural and regional areas. There are some common exceptions, such as Penrith, New South Wales, which has the postcode 2750 and Petrie, Queensland, which has the postcode 4502. These were rural towns when postcodes were introduced in 1967 but have since been suburbanised. Within each region with the same second numeral, postcodes are usually allocated in ascending order as one travels further from the state's capital city along major highways and railways.

Some places in Australia do not have postcodes, such as remote areas with little to no population. Some postcodes cover large populations, while others have much smaller populations, even in urban areas. Additionally, some towns and suburbs have two postcodes—one for street deliveries and another for post office boxes.

Over time, the initial digits of postcodes have deviated from the radio system they were initially copied from. For example, the 8000 series refers to special addresses in Victoria. It is sometimes incorrectly stated that the initial digits of the postcodes corresponded to the geographical boundaries of the official Australian Military Districts that existed from 1911 to 1997.

Frequently asked questions

Western Australia does not have one single postal code as different areas have different postal codes. The postcode for Perth, for example, ranges from 6000 to 6152.

Postal codes, also known as postcodes or ZIP codes, are used to efficiently sort and route mail in a country's postal system.

Postal codes were introduced in Australia in 1967 by the Postmaster-General's Department (PMG) to replace earlier postal sorting systems.

Australian postal codes consist of four digits and are placed at the end of the address, before the country name.

You can use an online postal code search or lookup tool, or refer to an online or booklet-form postal code directory published by Australia Post.

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