SMAN 1 Losari was established on August 23, 1992 based on Decree No. 640/02343/1992. It commenced operations on August 23, 1993 based on Operational Decree No. 0313/O/1993.
Learning activities are conducted throughout the day. SMAN 1 Losari holds an A-grade accreditation based on certificate 458/BAN-SM/SK/2020, issued on June 22, 2020.

OUR VISION :

TO PRODUCE GRADUATES WITH CHARACTER, ACHIEVEMENT, SKILL, AND ENVIRONMENTAL CARE

OUR MISSION:

1. Instilling the values ​​of faith and piety through religious education.
2. Optimizing the learning and guidance process.
3. Developing science and technology based on students' interests, talents, and potential.
4. Creating a conducive and innovative school culture and environment to support the learning process.
5. Establish harmonious cooperation between the school community, the surrounding community, and other relevant institutions.
6. Create an environmentally friendly, healthy, clean, and pollution-free school.