Except when it isn’t. I’d be curious to know the population in areas where a zip code spans multiple counties.

In that case, each county that corresponds to that ZIP Code is shown and the user can disambiguate manually.

	▲	mulmen 3 days ago \| parent [-]
		Yeah it makes it easier. And I’m appreciative of the idea of making address entry easier for users but if they have to disambiguate did you actually make it easier? I think Zillow does it best. You just type your address in a box and it looks up the normalized full address. That makes everyone happy.