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What is the best data source for determining international postal codes given a latitude & longitude?

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SCW are you looking for a paid or free source for global postcodes? – Mapperz Apr 12 '11 at 19:07
A preference for free, but both are fine. – scw Apr 12 '11 at 19:10
up vote 4 down vote accepted

Paid for

EZ-Locate (TeleAtlas - owned by TomTom)

NAVmart (NavTeq owned by Nokia)


Via Michelin (API and better coverage in Europe rather than globally)

Geonames (good open-source - patchy accuracy in rural locations)

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Here another one: (10,000 calls per day free)

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I asked a question recently, trying to achieve the opposite (had city, country wanted lat/long). I used this free database. It won't give you postcodes (so it's not really an answer), but it does give you city and country, if that is useful.

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