Currently Vantage does not offer a multi region functionality which would separate listings in the way you describe, although you could technically make "states" as the parent category, with type underneath each as child categories. However this would understandably end up quote large to deal with in terms of the number or categories required. Your alternative to this would be to look at a
WordPress multisite setup and give each region its own instance in its own subdirectory:
e.g.
yourdomain.com/region1
yourdomain.com/region2
yourdomain.com/region3
Some customization would be required in order to direct listings to the relevant instance. It is a more complicated method, however it is how some existing customers have managed to create this kind of setup in themes like ClassiPress.
Alternatively, if you did choose to go with a single installation but give people a chance to filter listings by location, there is a plugin in the
AppThemes marketplace which can allow this. Thanks.