expression, noun
whereabouts; what area; which part
Used to ask about the general location or area of something. Often softer than どこ.
すみません、駅はどの辺りですか。
Excuse me, whereabouts is the station?
どの辺りが痛みますか。
Which part hurts?
どこ asks for a specific point or place, while どの辺り asks for a general area or vicinity.
Compound of どの (which) + 辺り (area, vicinity).