Hillsdale Middle School
| Name | Hillsdale Middle School |
| Grades | Class 06 to Class 08 |
| Address | 1301 Brabham St. |
| City | El Cajon |
| School District | Cajon Valley Union |
| County | San Diego County |
| Zipcode | 92019-4374 |
| Phone No. | (619)441-6156 |
| State | California |
| Suburb | Large |
| Students | 1498 |
| Teachers | 60 |
| Student Teacher Ratio | 25 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Hillsdale Middle School is located at 1301 Brabham St. in El Cajon city of San Diego County county in California. This school comes under Cajon Valley Union. You can call them at (619)441-6156 for more details. This is not a magnet school. Total one thousand four hundred ninety eight students from class 06 to class 08 study in this school who are taught by sixty teachers. This is not a charter school. The student teacher ratio of this school is 25.