Ruth O. Harris Middle School
| Name | Ruth O. Harris Middle School |
| Grades | Class 07 to Class 08 |
| Address | 11150 Alder Ave. |
| City | Bloomington |
| School District | Colton Joint Unified |
| County | San Bernardino County |
| Zipcode | 92316-3006 |
| Phone No. | (909)876-6300 |
| State | California |
| Suburb | Large |
| Students | 670 |
| Teachers | 32 |
| Student Teacher Ratio | 21.2 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Ruth O. Harris Middle School is located at 11150 Alder Ave. in Bloomington city of San Bernardino County county in California. This school comes under Colton Joint Unified. You can call them at (909)876-6300 for more details. This is not a magnet school. Total six hundred seventy students from class 07 to class 08 study in this school who are taught by thirty two teachers. This is not a charter school. The student teacher ratio of this school is 21.2.