Should I answer yes to "Is this address the same as your principal/physical address"

You have not mentioned where in the program you are being asked to select a county.   That question does not appear in My Info, where you would have entered your mailing address.  In My Info, you should be using the mailing address where you want to receive mail or a check from the IRS.  Are you somewhere else in the software---what information are you entering where it is asking you about your county?

That was in the refund for CA state.