What are you using to parse and resolve location? There doesn't seem to be a suggested format for a github profile and myself, like many other people in the US just put in a State abbreviation or City name which has DC in Van, Turkey.
https://developers.google.com/maps/documentation/geocoding/
I wanted to use this API for a simple app of mine too but in the end didn't because of this. Used Mapquest instead, which seems good too.