Postal code: Difference between revisions

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==== United Kingdom ====

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{{Further|Postcodes in the United Kingdom}}

For domestic properties, an individual postcode may cover up to 100 properties in contiguous proximity (e.g. a short section of a populous road, or a group of less populous neighbouring roads). The postcode together with the number or name of a property is not always unique, particularly in rural areas. For example, GL20 8NX/1 might refer to either 1 Frampton Cottages or 1 Frampton Farm Cottages, roughly a quarter of a mile (400 metres) apart.

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Larger businesses and isolated properties such as farms may have a unique postcode. Extremely large organisations such as larger government offices or bank headquarters may have multiple postcodes for different departments.

There are 121 postcode areas in the UK, ranging widely in size from [[BT postcode area|BT]] which covers the whole of Northern Ireland to [[WC postcode area|WC]] for a small part of [[Central London]]. Postcode areas occasionally cross national boundaries, such as [[SY postcode area|SY]] which covers a large, predominantly rural area from [[Shrewsbury]] and [[Ludlow]] in [[Shropshire]], England, through to the seaside town of [[Aberystwyth]], [[Ceredigion]] on [[Wales]]' west coast. There are a number of special purpose postcode areas that are "non-gegraphicgeographic" and which provide special routing instructions (such as parcel returns to online retailers). The three Crown dependencies and GibralterGibraltar also use UK formatted postcodes. Some BristishBritish Overseas Territories have adopted a single postcode for their territory that is very similar to the UK format.

==== United States ====