Dude, that's more than 5 years old.
On Jun 26, 2005, at 8:27 PM, Scott Gifford wrote:
> Brian Dunning <brian@stripped> writes:
>
>
>> You have to purchase a database. ZIP codes are not geographic, you
>> can't calculate lat/lon from them. Here is one source:
>> http://www.zipwise.com
>>
>
> As I said below, you can download a free database from the US Census
> Bureau. Specifically, the data here:
>
> http://www.census.gov/tiger/tms/gazetteer/zcta5.txt
>
> contains ZIP codes and lat/lon information. I've not used that data,
> but I've used this file from 1999 with good results:
>
> http://www.census.gov/geo/www/tiger/zip1999.html
>
> Apparently that will no longer be updated, though, so the ZCTA data is
> probably better.
>
> ----ScottG.
>
> [...]
>
>
>> On Jun 26, 2005, at 6:43 PM, Scott Gifford wrote:
>>
>
> [...]
>
>
>>> In the U.S., you can use the census data:
>>>
>>> http://www.census.gov/geo/www/gazetteer/places2k.html
>>>
>
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