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 ...
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?
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 ...
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 ...