That depends on what junior high school is. There are two kinds of junior high schools. Clear distinction between public and private.

The average private teacher's salary is more than 7000 yuan (the head teacher, the main teacher and the general teacher are different)

There are several public ones, 3000-6000.

There are also a lot of factors, such as the quality of teaching, urban or rural areas, teachers in different disciplines (the Political Affairs Office is different from ordinary teachers, and ordinary teachers have main courses and auxiliary courses).

So the salary depends on the situation.