Holy Trinity Diocesan High School

Holy Trinity Diocesan High School is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• School
• School Secondary & Elementary

North American Industry Classification System (NAICS) Categories:

• Elementary And Secondary Schools
• All Other Miscellaneous Schools And Instruction

Standard Industry Classification (SIC) Categories:

• Elementary And Secondary Schools
• Schools And Educational Services, Nec