I don't know how postal codes work internationally and I'd imagine that geocoding them might be a bit easier but not as simple as it could be. I'm a big fan of

I don't know how postal codes work internationally and I'd imagine that geocoding them might be a bit easier but not as simple as it could be. I'm a big fan of giving users a map and letting them drop a pin at a specific zoom level. This lets them be as specific or as fuzzy as they want and it gives the benefit of not needing geocoding. Will make the choose site more attention grabbing.