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How many Lat/Long for a single UK Postcode

Posted on 2016-11-29
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Last Modified: 2017-01-17
Hi guys,

How many number of Lat/Long a single UK Postcode can have?

regards,
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Question by:shah36
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Expert Comment

by:Lee Savidge
ID: 41905726
Postcode areas are not a set size. They're a division that holds a "number of addresses". Population density in a built up area could be very high for a given postcode, so the postcode area could be very small, whereas rural areas will be bigger.
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Author Comment

by:shah36
ID: 41905871
Thanks for your answer Lee, I understand that each postcode can have number of addresses. Does the same applies to the Lat/Longs?
Can a postcode have number of Lat/Longs or is it one-to-one relationship between postcodes and lat/longs?
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Assisted Solution

by:Lee Savidge
Lee Savidge earned 500 total points
ID: 41905895
There is no direct relationship between lat/long and a postcode. Lat/long points exist across the entire globe. If you pick a lat/long point on the UK map, there will be a postcode there. Check the map here:

https://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom

You can see each postcode area for the UK but there could be more than one lat/long point in it.

Every lat/long point in the UK will have a postcode under it, but not every postcode is a single lat/long point. They aren't related.
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Accepted Solution

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Lee Savidge earned 500 total points
ID: 41905896
If you're looking to do a postcode lookup, you need access to the PAF database from the Royal Mail or use a webservice on the Internet that can do the lookup for you.
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Author Closing Comment

by:shah36
ID: 41905926
Thanks a lot for your help. This answers my question.
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