Latitude Longitude and Zip Code Conversions

Overview

This API returns approximated latitude/longitude centroids for a given zip code, along with the relative city, state, and county.
When provided a lat/long, we will try a spatial mapping find the nearest zip centroid.
Roughly, it draws a line from the coordinates you give it to the nearest set of coordinates in the data set. Coordinates in the dataset are considered to represent the “middle” of the zip code area. This does not use any sort of bounding box parameters for zip codes and is therefore not entirely accurate.

This data set is available with an Infochimps Platform Solution. For availability inquiries, use the Contact Us form to the right.