Triangle Main Office


Welcome to Triangle School!


In an effort to control SPAM, we are no longer listing direct links to staff email accounts. To contact a staff member via email please add the email ID in front of "".

School Address:

156 South Triangle Road

Hillsborough, NJ 08844



Mrs. Heisel
Triangle Principal
email ID : lheisel
Phone: 431-6600
Mrs. Felker
email ID : lfelker
Phone: 431-6600
ext. 2713

Mrs. Spencer
Clerical (p.m)
email ID:  lospencer
Phone: 431-6600
ext. 2391


Phone Number:  (908) 431-6600
Options: From the main number press:
4 for elementary school, then press:
4 for Triangle School.

Then press:
1. to Report an Absence
2. to reach the School Nurse
3. for our Guidance Office
4. Main office
6. HSA
FAX Number:  (908) 874-8563

7:40 am to 3:00 pm

Click here for delayed opening or emergency closings times.











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