ENVIRONMENT
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ENVIRONMENT
Student Demographics
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3.7
10 Reviews
5 stars  
4 stars  
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1 star  
Neighborhood
1225 Ostrander Avenue Riverhead, NY 11901
School leader: Carl Semmler
Map of Bishop Mcgann-Mercy Diocesan High School address. Map of Bishop Mcgann-Mercy Diocesan High School address. Map of Bishop Mcgann-Mercy Diocesan High School address.