Wallingford Public Schools

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Mark T. Sheehan High School


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(use Sheehan Network Username and Password)

Welcome to the Mark T. Sheehan High School Website     

Mark T. Sheehan High School prides itself on meeting the academic, social, and emotional needs of our students. Sheehan is a comprehensive high school that offers a wide range of academic courses to prepare our students for post-secondary education and career interest and planning.  Our school counseling department provides students with guidance when choosing academic courses in order to prepare them for their future. Our school counselors and other support staff provide social and emotional supports to our students as well. The faculty is firmly committed to providing students with a positive school climate conducive to learning. Students are encouraged to seize every learning opportunity provided and become involved in a variety of extracurricular activities offered at our high school. We encourage parents to be involved in their student's learning experiences and extracurricular activities. Communication between parents and staff members provides a strong partnership to support our students. 

Go Sheehan Titans! 

Enzo Zocco, Principal           Justin Marciano, Assistant Principal (Students with last name A-K)           Greg Dirkson, Assistant Principal (Students with last name L-Z) 

Mark T. Sheehan High School 

142 Hope Hill Road

Wallingford, CT 06492, 203-294-5900

School Reopening Information and Resources

Reporting a Student Absence: In the event that your student is absent and will not be attending school, you must fill out the Sheehan Absence Form  indicating the reason and symptoms of your child’s illness. This form will provide information in the event that any of the symptoms of your child’s illness may be associated to COVID-19.  Completion of this form will replace your need to call your child’s school to inform them of the absence. 

Also for your reference is the Sheehan Attendance Policy FAQ Review regarding our attendance policies including loss of credit for excessive absences from school (in-person and virtual). 




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