branch school
A school that is a branch of a main school (本校). Used for satellite campuses of universities, high schools, etc.
See also: 本校
この大学には三つの分校があります。
This university has three branch campuses.
分校は本校から車で30分のところにある。
The branch school is a 30-minute drive from the main school.
They set up a branch school in the depopulated area.
Children in the mountainous area attend the branch school.