I can't comment specifically on Troop A, but here in Troop B, most if not all zones are TWO counties. Zone 7 is Knox & Lewis counties, Zone 6 is Scotland and Clark. I think Zone 5 is Adair and Schuyler. One clue is if you know your locals radio number, listen for them to call in with "10-7 639" etc., where the "639" represents a specific location in the zone, such as the courthouse, local eateries, etc.