jurisdiction; administrative district
Refers to the area assigned to an agency, office, or authority, especially in official or administrative contexts. Common in compounds and phrases such as 管区内 and 第三管区海上保安本部.
This port falls under the jurisdiction of the Third Regional Coast Guard Headquarters.
A state of alert was put in place at each station within the jurisdiction.
This coast guard office has the entire Tokyo Bay area as its jurisdiction.
The incident occurred within the jurisdiction.
区域 simply means a demarcated area or zone without necessarily implying an authority's control, whereas 管区 always refers to a jurisdiction assigned to a specific agency.
地区 is a general, everyday word for a local district, while 管区 is a more official term tied specifically to an administrative authority's jurisdiction.
A Sino-Japanese compound of 管, associated with control or administration, and 区, meaning district or section. The spelling transparently reflects the idea of an area under administrative control.