Showing sales territory names on a state map

I can create a basic map of the sales territories. However, the territory name displays multiple times instead of just once above a territory. So if KY and TN are in a territory called MidSouth, the label MidSouth displays above KY and again over TN. Both states will have the same color, as I would expect.So what property setting should I be using to display territory names once per territory?Thansk!