This means the county where the Decedent lived and considered their primary home address before they died. Domicile is intended to be permanent rather than temporary, whereas residence means living in a particular locality and requires mere physical presence.An affidavit of domicile is a sworn statement signed before a notary public establishing the legal domicile of someone who has died. Domicile - A fixed permanent home to which an individual intends to return whenever absent.