Does anyone know of a free postcode CSV for UK? I have one for the USA but can't fined a UK equivalent.
I want to implement nearest Five kind of logic based on long, Lat.
Kindly let me know if any one is aware.
Regards, Jigar
It looks like you need to explore the Ordnance Survey OpenData dataset.
The UK doesn't have zip codes; rather, it has postcodes, which are much more precise. For example the building where I work has a postcode to itself, BS1 2PH.
Commercial organisations that validate postcodes use the Postcode Address File, which is commercially licensed (and expensive!), mostly as maintaining a per-premise address format is very time-consuming.
In practice most Web sites. etc. use Web services such as Postcode Anywhere which aggregate and resell the data.