| | Established | 2001 |
| | Level | Secondary |
| | Type | Co-Educational |
| | Board | State Board |
| | Medium of instruction | English |
| | No. of students | 111 |
| | No. of Teachers | 16 |
The location of St Marys High School is Anna Nagar, Thanjavur. There are 8 dedicated and professional faculty members who impart quality education to children in this State Board school.
2001 saw St Marys High School being launched. This school's primary medium of instruction is English and the student teacher ratio is 13:1. The school takes pride of its excellent teaching methodology.
Classes from 6 to 10 run in this school. 111 is approximately the current student strength of this school. The library in this school has 1950 books.
The school has given exceptional results in the academic sphere and its students have excelled in extra co-curricular activities too. The perentage of students passing the exam is 100% with 75% scoring first grade.
| School Code | 33210205803 |
| Status of Building | Private |
| Total Classrooms | 6 |
| Monday | 9:00 am - 5:00 pm |
| Tuesday | 9:00 am - 5:00 pm |
| Wednesday | 9:00 am - 5:00 pm |
| Thursday | 9:00 am - 5:00 pm |
| Friday | 9:00 am - 5:00 pm |
| Saturday | closed |
| Sunday | closed |
| Student Teacher Distrubution | Teachers 16 | Student 111 | |
| Boys to Girls Ratio | Boys 64 | Girls 47 | |
| Students Distribution | Primary 0 | Secondary 111 | Hr.Secondary 0 |
