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 ...
is there any service to convert a UK postal code to a city name? Does one postal code always map to one city, or to more than one? Is there a free web service to do this conversion for me? Thanks.
I am using OpenLayers.Layer.Vector to load and display KML files. Some of the KML files have a large number of points in them (lets say around 20,000). I am surprised they load at all (in chrome), but ...
I've had a request recently to generate a map which includes UK Postcode districts, ie aggregations of postcodes based on the first section of the code (NW2, B1, E11 etc.). From what I've read, these ...
I have been searching for the most recent list of Postal Codes in US but I most of them are two or three years old. I did cross check them with the Google Maps, though most of them them were correct ...
I am trying to find the shape files for postcode sector and districts in the UK. Specifically inside London. I know I can go and pay for these but I only really need to use them once. I want to ...
Does anyone know of an algorithm to calculate purchasing power on a postcode level? What source data is needed? Purchasing power on admin. level, population?
What is the best data source for determining international postal codes given a latitude & longitude?