ZIP codes are a system of geographically organized postal codes used by the United States Postal Service (USPS) since 1963. The basic format consists of five decimal numerical digits which locate over 40,000 postal delivery areas (which can include non-geographic areas such as ships at sea). An ...
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votes
3answers
120 views
Which US zipcodes map to more than one state or more than one city?
I'm using a zip code listing, and I am curious to know how many (or which) zip codes map to more than one US state or US city?
For instance I know that 42223 resolves to the same city which straddles ...
1
vote
0answers
83 views
'File is too big' error when uploading QGIS Plugin
I have written a simple QGIS plugin which zooms the map canvas to a user specified UK postcode. I would like to share the plugin but the csv file, which contains stripped down OS Code-Point open data ...
2
votes
1answer
132 views
How do I map data by zip code?
I have a set of data that corresponds to zip code, and I'd like to turn that into a map. From what I've gathered thus far, zip code shapefiles are difficult to find and work with due to the fact that ...
2
votes
1answer
92 views
What are the geometric principles and GIS techniques that I can use to generate a postcode coverage of my city at street scales?
Postal codes of Brazil and another countries are oriented to distribution logistics, and improvement of reliability in writing the postal addresses; but without much concern for the spatial ...
2
votes
0answers
40 views
Need help in how to map ZIP codes data by year
I'd like to build a graphic showing where city employees live, based on their date of hire. I have a list showing the hire date and the ZIP code for each employee. There are about 4,000 employees.
I ...
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vote
1answer
302 views
Where can I get zip code shapefiles for years 2000 to 2010?
I've been searching the web for zip code shapefiles (or equivalents) for years 2000 to 2010, and have only managed to find the following:
http://www.icpsr.umich.edu/TIGER/index.html
which carries ...
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votes
1answer
142 views
GIS Shapefiles map to Zipcodes to districts
I have found GIS shape files from the following link:
http://elections.il.gov/votinginformation/2011congressionaldistricts.aspx
What would be the easiest way if possible to process/tool that I need ...
5
votes
6answers
322 views
How to put zipcodes data onto a web map?
This is to create a cellphone coverage map. I'm being given a list of zipcodes and need to create a detailed static cellphone map (plus, ideally, an interactive zoomable map) of cellphone coverage ...
2
votes
2answers
1k views
US unemployment data by zip (or aggregating data up to county level)
I am trying to find unemployment rate data for the US that is:
at 5 digit zip code level
monthly, or quarterly, or even annually, for 2008-2012
free
That seems to be impossible as far as I can ...
5
votes
4answers
4k views
How to convert zip codes to latitude and longitude?
I have a data set that includes a list of zip codes. Is there a way in R to convert these zip codes to latitude and longitude coordinates?
5
votes
2answers
718 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 ...
