Here’s what the experts had to say on the matter:
“No Person shall be a Senator who shall not have attained
to the Age of thirty Years, and been nine Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State for which he shall be chosen.”
What is INHABITANT?
One who resides actually and permanently In a given place, and has his domicile there. Ex parte Shaw, 145 U. S. 444, 12 Sup. Ct. 935, 36 L. Ed. 768; The Pizarro, 2 Wheat. 245, 4 L. Ed. 226. “The words ‘inhabitant,’ ‘citizen,’ and ‘resident,’ as employed in different constitutions to define the qualifications of electors, mean substantially the same thing; and one is an inhabitant. resident, or citizen at the place where he has his domicile or home.” Cooley, Const. Dim. *600. But the terms “resident” and “inhabitant” have also been held not synonymous, the latter implying a more fixed and permanent abode than the former, and importing privileges and duties to which a mere resident would not be subject. Tazewell County v. Davenport, 40 111. 197.
Law Dictionary: What is INHABITANT? definition of INHABITANT (Black’s Law Dictionary)