Geocode database [closed]

Answer 1

I use the Google Maps API...

http://code.google.com/apis/maps/documentation/geocoding/index.html

every service will throttle your requests. I've found I can make continuous requests by sleeping for 200 ms in between each request (with the occasional extra sleep cycle if it's still too fast).

Answer 2

State of California provides a free geocoding service for all of North America.

http://services.gis.ca.gov/arcgis/rest/services/Location/NorthAmerica/GeocodeServer

Answer 3

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,

X.

Answer 4

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

Answer 5

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.

Answer 6

You're looking for something like geocoder.us?

There's also the Virtual Earth API.

Here's a nice list of other geocoder services (thanks to Christopher Klein in the comments ;-)

Edit: I don't think an online service exists that will allow unlimited requests, as this is a security measure to avoid DOS attacks and the likes...