Castlio Elementary School
Public elementary school in St Charles, Missouri · Francis Howell R-III School District · Grades K–5
Castlio Elementary School serves 847 students in grades K–5 in St Charles (St. Charles County). It is one of 21 schools in Francis Howell R-III School District. By enrollment it is the 10th largest of 1,202 public elementary schools in Missouri (median 327 students). With 12.9 students per full-time teacher, it has about the same as the typical Missouri elementary school (12.3).
Source: NCES CCD 2024-25. Rank and medians compare all 1,202 Missouri elementary schools with enrollment listed on this site.
Source: NCES CCD 2024-25. Students per teacher = students ÷ 65.42 full-time-equivalent teachers.
School facts
| School type | Regular School |
| Level | Elementary |
| Grades | K–5 |
| District | Francis Howell R-III School District |
| County | St. Charles County |
| Area type | Suburb, large |
| School meals | National School Lunch Program, free or reduced price for eligible students |
| NCES school ID | 292895001856 |
Source: NCES CCD 2024-25 directory and school characteristics; area type from NCES EDGE locale codes.
Compared with the district and Missouri
| This school | Francis Howell R-III | Missouri elementary schools (median) | |
|---|---|---|---|
| Students | 847 | 17,047 | 327 |
| Students per teacher | 12.9 | 14.9 | 12.3 |
| Free or reduced-price lunch eligible | 12.2% | 16.3% | 53.6% |
Source: NCES CCD 2024-25. District figures add up its schools. 59% of Missouri elementary schools have fewer students per teacher than this school (share of schools with a lower ratio). State test results aren't published here yet.
Castlio Elementary School in context
Size
Of the 10 elementary schools in Francis Howell R-III School District, Castlio Elementary School is the 3rd largest, with 5% of the district's students. Its 8 closest elementary schools sit a median 3.5 miles away with a median enrollment of 746; Castlio Elementary School is close to their typical size.
Source: NCES CCD 2024-25 enrollment and school type. Share of district students = this school's students ÷ the district's students. Nearest schools by straight-line distance between NCES EDGE locations.
Grades
Its largest grade is grade 4 with 160 students, and its smallest is kindergarten with 119, against an average of 141 per grade. This year grade 5 has 26% more students than kindergarten (150 against 119). Each grade is a different group of students, so the gap is not a dropout or growth rate.
Source: NCES CCD 2024-25 membership by grade.
Students
The largest group is White students: 73.8% here and 73.8% across Francis Howell R-III. Students from 6 of the 7 race and ethnicity groups NCES reports are enrolled.
12.2% of its students are eligible for free or reduced-price lunch, against 16.3% across Francis Howell R-III and a median of 53.6% for Missouri elementary schools. 4.3% are directly certified for free meals, meaning their families take part in programs such as SNAP or TANF, so no application was needed. Families apply for free or reduced-price meals, and eligibility depends on household income.
Source: NCES CCD 2024-25 membership and school lunch program data. District shares weight each school by its enrollment.
Teachers
With 65.42 full-time-equivalent teachers for 847 students, Castlio Elementary School has 12.9 students per teacher. At the median Missouri elementary school ratio of 12.3, a school with 847 students would have about 68.9 teachers, so Castlio Elementary School has 3.5 fewer.
Source: NCES CCD 2024-25. Expected teachers = this school's students ÷ the median students per teacher of Missouri elementary schools (12.3).
Location
Castlio Elementary School is in an urbanized area of 250,000 people or more, outside its principal city, which NCES calls suburb, large. The nearest other elementary school is Central Elementary School, 1.4 miles away in the same district. Within 10 miles there are 55 other elementary schools, 13 of them within 5 miles.
Source: NCES EDGE school locations and locale codes, 2024-25. Distances are straight lines.
Students by race and ethnicity
| White | 73.8% |
| Asian | 7.7% |
| Hispanic | 6.4% |
| Two or more races | 6.4% |
| Black | 5.4% |
| American Indian or Alaska Native | 0.4% |
46.4% of students are girls and 53.6% are boys.
Source: NCES CCD 2024-25 membership.
Students by grade
| Kindergarten | 119 |
| Grade 1 | 129 |
| Grade 2 | 150 |
| Grade 3 | 139 |
| Grade 4 | 160 |
| Grade 5 | 150 |
Source: NCES CCD 2024-25 membership.
Location and contact
1020 Dingledine Rd, St Charles, MO 63304
Phone: (636)851-4300
Website: fhsdschools.org
Locations: NCES EDGE. Map data © OpenStreetMap contributors.
Red: Castlio Elementary School. Blue: the nearest elementary schools.
Nearby elementary schools
| School | District | Distance | Students | Per teacher | Free/reduced lunch |
|---|---|---|---|---|---|
| Central Elementary School | Francis Howell R-III | 1.4 mi | 865 | 13.6 | 31.8% |
| Becky-David Elementary School | Francis Howell R-III | 2.2 mi | 812 | 13.1 | 14.8% |
| Fairmount Elementary School | Francis Howell R-III | 2.5 mi | 971 | 13.1 | 20.8% |
| Henderson Elementary School | Francis Howell R-III | 3.2 mi | 653 | 11.9 | 30.5% |
| Warren Elementary School | Francis Howell R-III | 3.8 mi | 729 | 13.4 | 9.9% |
| Independence Elementary School | Francis Howell R-III | 3.9 mi | 762 | 14.7 | 11.5% |
| Hawthorn Elementary School | Fort Zumwalt School District | 4.1 mi | 458 | 12.4 | 24.9% |
| Harvest Ridge Elementary School | Francis Howell R-III | 4.3 mi | 572 | 11.2 | 23.1% |
Source: NCES CCD 2024-25. Distance in a straight line between NCES EDGE locations.
Other schools in Francis Howell R-III
| School | Level | Grades | Students |
|---|---|---|---|
| Barnwell Middle School | Middle | 6–8 | 792 |
| Becky-David Elementary School | Elementary | Pre-K–5 | 812 |
| Bryan Middle School | Middle | 6–8 | 827 |
| Central Elementary School | Elementary | Pre-K–5 | 865 |
| Daniel Boone Elementary School | Elementary | K–5 | 420 |
| Early Child Family Educ. Center | Pre-K | Pre-K | 117 |
| Early Child. Family Educ Center | Pre-K | Pre-K | 189 |
| Early Child. Family Educ. Center | Pre-K | Pre-K | 224 |
| Fairmount Elementary School | Elementary | K–5 | 971 |
| Francis Howell Central High School | High | 9–12 | 1,750 |
| Francis Howell High School | High | 9–12 | 1,843 |
| Francis Howell Middle School | Middle | 6–8 | 799 |
| Francis Howell North High School | High | 9–12 | 1,716 |
| Harvest Ridge Elementary School | Elementary | Pre-K–5 | 572 |
| Henderson Elementary School | Elementary | K–5 | 653 |
| Hollenbeck Middle School | Middle | 6–8 | 769 |
| Independence Elementary School | Elementary | K–5 | 762 |
| John Weldon Elementary School | Elementary | Pre-K–5 | 640 |
| Saeger Middle School | Middle | 6–8 | 750 |
| Warren Elementary School | Elementary | K–5 | 729 |