CASTLIO ELEM. School
| Name | CASTLIO ELEM. School |
| Grades | Class KG to Class 05 |
| Address | 1020 DINGLEDINE RD |
| City | St Charles |
| School District | FRANCIS HOWELL R-III |
| County | St. Charles County |
| Zipcode | 63304-6906 |
| Phone No. | (636)851-4300 |
| State | Missouri |
| Suburb | Large |
| Students | 801 |
| Teachers | 63 |
| Student Teacher Ratio | 12.7 students per teacher |
| Charter School | No |
| Magnet School | No |
CASTLIO ELEM. School is located at 1020 DINGLEDINE RD in St Charles city of St. Charles County county in Missouri. This school comes under FRANCIS HOWELL R-III. You can call them at (636)851-4300 for more details. This is not a magnet school. Total eight hundred one students from class KG to class 05 study in this school who are taught by sixty three teachers. This is not a charter school. The student teacher ratio of this school is 12.7.