Answer

Option 1

1. In Tableau Desktop, connect to Superstore sample data.
2. Double-click State.
3. Zoom in to the desired state.
4. In the drop-down menu on the Marks card, select Map.
5. Drag State from Dimensions to Filters, select only the desired state, and then click OK.
6. Select Map > Map Layers. Uncheck map layers as desired.

Option 2

1. Use a custom background image of the desired state. For more information, see Use Background Images in Your Views in Tableau Help.
2. Build the view in a way that matches the x and y mappings you specified for the image.

Additional information