A ZIP+4 code uses the basic five-digit code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in ...
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votes
1answer
85 views
How Trusted is ZipInfo.com's data?
I'm not in GIS, and I'm working on a nutty redball express project that involves matching some zip+4 data to congressional districts for the upcoming 113th congress. We have found very few sources of ...
-3
votes
2answers
130 views
Mapping zipcode to legislative district [closed]
Did anyone work with SunLight foundation data to map the zipcodes with legislative district data. I have to work with Illinois zipcodes only.
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vote
1answer
77 views
Vendor who sells Zip+4 from Semaphore corporation [closed]
I need a vendor who sells zip4 CD from Semaphore corporation. I would like to input the address data and zip and then mapped/output that correct address and Zip+4.
5
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2answers
723 views
Where can I find a list of non deliverable zip codes
Here is an interesting problem I am facing... There are certain areas within the US where the USPS does not offer postal delivery to those addresses. One example here is my Zipcode 92067 which is ...
