Hillsborough and Pinellas deserve two campaigns, not one campaign with two locations
Pooling both sides of the bay into a single campaign produces a blended cost that describes neither market and hides which one is actually paying you.
Separate campaigns give you separate budgets, separate bids and separate schedules. All three should differ, because the drive, the housing and the competition differ.
If you only run trucks on the Hillsborough side, the Pinellas campaign should not exist yet. Run it when you have crews staged over there, not when you have ambition over there.
Set location targeting to people present in the area, not people present or interested. Interest based targeting hands you searches from someone in Ohio researching a house they are buying near Safety Harbor, and the call quality falls off a cliff.
Keep Pasco separate again if you serve Wesley Chapel or Lutz. Growth areas behave differently from established ones, and averaging them into Hillsborough buries the difference.