How should I format a U.S. address on a numbered highway for geocoding?
The Google Maps APIs geocoder requires that U.S. numbered highways be specified in addresses as follows: • County Roads: “Co Road NNN” where NNN is the road number. eg. “Co Road 82” • State Highways: “State NNN” where State is the full name of the state and NNN is the highway number. eg. “California 82” • U.S. Highways: “U.S. NNN” where NNN is the highway number. eg. “U.S. 101” • U.S. Interstates: “Interstate NNN” where NNN is the interstate number. eg.