Sumin Mangthang Junior High School
| School Name | Sumin Mangthang Junior High School |
| Address | Mangthang Ward, Lingzey, Duga, Gangtok, Sikkim |
| Location | Mangthang Ward |
| City | Gangtok |
| District | Pakyong |
| State | Sikkim |
| Pincode | 737134 |
| Category | Upper Primary School |
| Block | Duga |
Sumin Mangthang Junior High School is located in Mangthang Ward, Lingzey, Duga, Gangtok, Sikkim. Established 43 years ago, this school is a Co-educational and is located in Rural area. This is a Upper Primary school and is currently operational. The school is managed by Department of Education. This school falls under Namcheybung assembly constituency. The school is located in Sikkim parliamentary constituency. The language used to teach students is English.
| Pre Primary | 5 Kids |
| Class I to V | 25 Students |
| Class VI to VIII | 15 Students |
| Total Students | 45 Students |
| Total Teachers | 9 Teachers |
| Student-Teacher Ratio | 5:1 |
| Student-Classroom Ratio | 6:1 |
This institution has around one hundred students studying and has 9 teachers to teach them. The student-teacher ratio is 5 students per teacher. Four teachers are appointed on Regular basis and rest five are appointed on Contract basis. Five teachers are Male and remaining four are Female. In terms of Academic qualification two teachers are Below Graduate, three are Graduate and rest four are Post Graduate. Three teachers are trained in Computer. The student classroom ratio is 6:1, means on an average six students sit in a classroom which is very good. There are 5 kids in pre primary, 25 students in class I to V and 15 students in class VI to VIII.
The school is in a Govt. building and it has partial boundary walls. The school has total seven clasrooms and two other rooms. The school has one laptop, one desktop, one scanner and one printer in its premises. There is library for students. There are two boys toilets and three girls toilets for students. The school has both hand wash facility and drinking water facility for people.