Govt. High School Onnalvadi
| School Name | Govt. High School Onnalvadi |
| Address | Onnalvadi, Hosur, Krishnagiri, Tamilnadu |
| Location | Onnalvadi |
| City | Krishnagiri |
| District | Krishnagiri |
| State | Tamilnadu |
| Pincode | 635109 |
| Category | Secondary School |
| Block | Hosur |
Govt. High School Onnalvadi is located in Onnalvadi, Hosur, Krishnagiri, Tamilnadu and was established in year 1996. The school is a Co-educational and is located in Rural area. This is a Secondary school and is currently operational. It's affiliated with State Board for class-X exams. The school is managed by Department of Education. This school falls under Hosur assembly constituency. This school comes under Krishnagiri parliamentary constituency. The language used to teach students is English.
| Class VI to VIII | 148 Students |
| Class IX to XII | 73 Students |
| Total Students | 221 Students |
| Total Teachers | 9 Teachers |
| Student-Teacher Ratio | 25:1 |
| Student-Classroom Ratio | 44:1 |
This institution has strength of around three hundred students and has recruited total 9 teachers, thus making the student-teacher ratio of 25 students per teacher. Seven teachers are appointed on Regular basis and rest two are appointed on Part-time basis. Six teachers are Male and remaining three are Female. In terms of Academic qualification one teacher is Graduate and rest eight are Post Graduate. One teacher is trained in Computer. The student classroom ratio is 44:1, means on an average forty four students sit in a classroom which is good. There are 148 students in class VI to VIII and 73 students in class IX to XII.
The school is in a Govt. building and it has pucca boundary walls. The school has total five clasrooms and four other rooms. The school has internet facility for students. The school has two desktops, one scanner, one printer, one webcam and one generator in its premises. There is reading corner, library and book bank for students. There are three boys toilets, three girls toilets and one cwsn toilet for students. The school has both hand wash facility and drinking water facility for people.