Arroyo Seco Junior High School
| Name | Arroyo Seco Junior High School |
| Grades | Class 07 to Class 08 |
| Address | 27171 N. Vista Delgado Dr. |
| City | Valencia |
| School District | William S. Hart Union High |
| County | Los Angeles County |
| Zipcode | 91354-2244 |
| Phone No. | (661)296-0991 |
| State | California |
| Suburb | Large |
| Students | 1213 |
| Teachers | 52 |
| Student Teacher Ratio | 23.5 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Arroyo Seco Junior High School is located at 27171 N. Vista Delgado Dr. in Valencia city of Los Angeles County county in California. This school comes under William S. Hart Union High. You can call them at (661)296-0991 for more details. This is not a magnet school. Total one thousand two hundred thirteen students from class 07 to class 08 study in this school who are taught by fifty two teachers. This is not a charter school. The student teacher ratio of this school is 23.5.