2011 ORS § 46.560¹
Where action to be commenced and tried

Except as provided in subsections (1) and (2) of this section, all actions in small claims department shall be commenced and tried in the county in which the defendants, or one of them, reside or may be found at the commencement of the action.

(1) When an action is founded on an alleged tort, it may be commenced either in the county where the cause of action arose or in the county where the defendants, or one of them, reside or may be found at the commencement of the action.

(2) When the defendant has contracted to perform an obligation in a particular county, action may be commenced in either that county or where the defendants, or one of them, reside or may be found at the commencement of the action. [1973 c.446 §2]