The service provides information about a geographic area within the United States specified by a particular Zip Code of the U.S. Postal Service. Available specifics include the location by state, region, city, exact boundaries, and elevation. Data also include telephone area codes for the region, with some information about city classifications, where appropriate.
API methods support submission of a Zip Code, and returned data provide the city, state, and county where it is located along with city type, latitude/longitude, time zone, elevation, and telephone area codes. Methods also support listings of Zip Codes located within a city or state and the specific code for a latitude/longitude.