Hauppauge High School may be contacted by mail at the following address:
Hauppauge High School
500 Lincoln Boulevard
P.O. Box 6006, Hauppauge NY 11788
Hauppauge High School Offices may be contacted by telephone at the following numbers:
Main Office | 761-8302 |
| Attendance | 761-8312 |
| Guidance Office | 761-8337,8339 |
| Nurse's Office | 761-8315 |
| SAS Office | 761-8324 |