Old River Elementary School
| Name | Old River Elementary School |
| Grades | Class KG to Class 08 |
| Address | PO Box 265 |
| City | Knightsen |
| School District | Knightsen Elementary |
| County | Contra Costa County |
| Zipcode | 94548-0265 |
| Phone No. | (925)626-3330 |
| State | California |
| Rural | Fringe |
| Students | 302 |
| Teachers | 13 |
| Student Teacher Ratio | 23.2 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Old River Elementary School is located at PO Box 265 in Knightsen city of Contra Costa County county in California. This school comes under Knightsen Elementary. You can call them at (925)626-3330 for more details. This is not a magnet school. Total three hundred two students from class KG to class 08 study in this school who are taught by thirteen teachers. This is not a charter school. The student teacher ratio of this school is 23.2.