Postcodes / Zipcodes / 2013 100% open

What data is expected?

A database of postcodes/zipcodes and the corresponding geospatial locations in terms of a latitude and a longitude (or similar co-ordinates in an openly published national co-ordinate system). A database which gives a location in terms of the name of a town or a street without lat/long co-ordinates is not considered acceptable unless the name of the town or street can be further converted to a latitude and longitude by means of other open data (eg an open gazetteer with latitude and longitude attributes).

What data is available

•   Does the data exist? Yes
•   Is data in digital form? Yes
•   Publicly available? Yes
•   Is the data available for free? Yes
•   Is the data available online? Yes (Here)
•   Is the data machine readable? Yes (TSV)
•   Available in bulk? Yes
•   Openly licensed? Yes (No URL given)
•   Is the data provided on a timely and up to date basis? Yes

Details

The US Census provide zip-code centroids as part of their 2010 Gazetteer located at: http://www.census.gov/geo/maps-data/data/gazetteer2010.html. The URL in this submission is the link to the specific zip file containing these centroids (along with other information) in in tab-delimted (TSV) format.