Hillside High School
| Name | Hillside High School |
| Grades | Class 10 to Class 12 |
| Address | 1558 W. Ninth St. |
| City | Upland |
| School District | Upland Unified |
| County | San Bernardino County |
| Zipcode | 91786-5636 |
| Phone No. | (909)949-8400 |
| State | California |
| Suburb | Large |
| Students | 104 |
| Teachers | 11 |
| Student Teacher Ratio | 9.5 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Hillside High School is located at 1558 W. Ninth St. in Upland city of San Bernardino County county in California. This school comes under Upland Unified. You can call them at (909)949-8400 for more details. This is not a magnet school. Total one hundred four students from class 10 to class 12 study in this school who are taught by eleven teachers. This is not a charter school. The student teacher ratio of this school is 9.5.