US School Days

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.

847
students
12.9
students per teacher
12.2%
free/reduced lunch eligible
K–5
grades

Source: NCES CCD 2024-25. Students per teacher = students ÷ 65.42 full-time-equivalent teachers.

School facts

School typeRegular School
LevelElementary
GradesK–5
DistrictFrancis Howell R-III School District
CountySt. Charles County
Area typeSuburb, large
School mealsNational School Lunch Program, free or reduced price for eligible students
NCES school ID292895001856

Source: NCES CCD 2024-25 directory and school characteristics; area type from NCES EDGE locale codes.

Compared with the district and Missouri

This schoolFrancis Howell R-IIIMissouri elementary schools (median)
Students84717,047327
Students per teacher12.914.912.3
Free or reduced-price lunch eligible12.2%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

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

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

SchoolDistrictDistanceStudentsPer teacherFree/reduced lunch
Central Elementary SchoolFrancis Howell R-III1.4 mi86513.631.8%
Becky-David Elementary SchoolFrancis Howell R-III2.2 mi81213.114.8%
Fairmount Elementary SchoolFrancis Howell R-III2.5 mi97113.120.8%
Henderson Elementary SchoolFrancis Howell R-III3.2 mi65311.930.5%
Warren Elementary SchoolFrancis Howell R-III3.8 mi72913.49.9%
Independence Elementary SchoolFrancis Howell R-III3.9 mi76214.711.5%
Hawthorn Elementary SchoolFort Zumwalt School District4.1 mi45812.424.9%
Harvest Ridge Elementary SchoolFrancis Howell R-III4.3 mi57211.223.1%

Source: NCES CCD 2024-25. Distance in a straight line between NCES EDGE locations.

Other schools in Francis Howell R-III

SchoolLevelGradesStudents
Barnwell Middle SchoolMiddle6–8792
Becky-David Elementary SchoolElementaryPre-K–5812
Bryan Middle SchoolMiddle6–8827
Central Elementary SchoolElementaryPre-K–5865
Daniel Boone Elementary SchoolElementaryK–5420
Early Child Family Educ. CenterPre-KPre-K117
Early Child. Family Educ CenterPre-KPre-K189
Early Child. Family Educ. CenterPre-KPre-K224
Fairmount Elementary SchoolElementaryK–5971
Francis Howell Central High SchoolHigh9–121,750
Francis Howell High SchoolHigh9–121,843
Francis Howell Middle SchoolMiddle6–8799
Francis Howell North High SchoolHigh9–121,716
Harvest Ridge Elementary SchoolElementaryPre-K–5572
Henderson Elementary SchoolElementaryK–5653
Hollenbeck Middle SchoolMiddle6–8769
Independence Elementary SchoolElementaryK–5762
John Weldon Elementary SchoolElementaryPre-K–5640
Saeger Middle SchoolMiddle6–8750
Warren Elementary SchoolElementaryK–5729