Pioneer Junior High School
| Name | Pioneer Junior High School |
| Grades | Class 07 to Class 08 |
| Address | 245 W. 18th St. |
| City | Upland |
| School District | Upland Unified |
| County | San Bernardino County |
| Zipcode | 91784-1682 |
| Phone No. | (909)949-7770 |
| State | California |
| Suburb | Large |
| Students | 732 |
| Teachers | 35 |
| Student Teacher Ratio | 20.9 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Pioneer Junior High School is located at 245 W. 18th St. in Upland city of San Bernardino County county in California. This school comes under Upland Unified. You can call them at (909)949-7770 for more details. This is not a magnet school. Total seven hundred thirty two students from class 07 to class 08 study in this school who are taught by thirty five teachers. This is not a charter school. The student teacher ratio of this school is 20.9.