Geocode database

Asked 2009-06-03T16:26:26.637

Can I download address,city,state,postalcode - latitude/longitude information, that can be loaded to a db for US alone.. Also do comment about their accuracy and coverage..

I suppose all GPS devices do this.. any pointers where I can extract this info??

I tried google maps json api.. and don't like the idea that they rate limit the number of requests per second..

Thanks, Ramya

Edit: What I am looking for is "address , city , state , postalcode, latitude/longitude" in csv or dump.. that I can query locally.. ofcourse.. free of cost (non commercial).

maps geocoding

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3 Answers

On the GeoNames you could download full database or the extracts for the country http://download.geonames.org/export/dump/

answered 2009-07-21T15:27:48.663

Try Geoname. If I remember well you can download the full database or use its API. Free of charge. It's an open project. Hope this helps,

answered 2009-06-05T07:08:32.053

I've used ZipCodeDownload in the past, and it's got lat/long info as well as postal codes, cities, etc... It is a commercial product however. (note I do not, nor have I ever, worked for this company)

EDIT: It seems unlikely that you will find a free service that provides unlimited requests per second. I don't know if you looked at this link, but the product starts at $30 USD, which, in my mind is quite affordable.

answered 2009-06-03T16:48:29.897

Geocode database

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