Enrollment
371
Colorado · 2024-25 NCES data
Elementary school (grades K-5) · Castle Rock, CO
South Ridge Elementary an Ib World School
Federal NCES profile for South Ridge Elementary an Ib World School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataElementary school (grades K-5)NCES 080345000447
👥 S:T ratio 45
🌟 Gifted program 70
🎓 Counselors 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
South Ridge Elementary an Ib World School earns 48/100 on the Resource Investment Index, with class sizes smaller than 71% of Colorado schools.
- #1 of 3
- elementary schools in Castle Rock · Resource Index
- 48
- Resource Index · Typical
- 13.7:1
- small classes for Colorado
- 26.0%
- free-lunch eligible
South Ridge Elementary an Ib World School has class sizes smaller than 71% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, South Ridge Elementary an Ib World School ranks #1 of 3 elementary schools in Castle Rock, CO.
School address
District: Douglas County School District No. Re 1 · Colorado
NCES ID 080345000447 Verify on NCES CCD record →
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
13.7:1
vs 16.6:1 Colorado avg
-17% vs state
Free-lunch eligible
26.0%
vs 38.5% Colorado avg
-32% vs state
Student-teacher ratio in context
How South Ridge Elementary an Ib World School compares with Colorado and U.S. medians
What stands out at South Ridge Elementary an Ib World School
South Ridge Elementary an Ib World School is a mid-sized elementary school in Castle Rock, Colorado, enrolling 371 students.
Class sizes run a bit leaner than typical: 13.7:1 puts it in the smaller third of Colorado schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 26.0% of students eligible for free meals.
With 371 students, its enrollment sits close to the Colorado median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,922 scored Colorado schools.
Against 360 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #104.
Its student body is led by White (57%) and Hispanic or Latino (36%) (diversity index 55/100).
Counselor availability sits well past the ASCA benchmark, roughly 360 students sharing each counselor, though short of the most stretched campuses.
The surrounding Douglas County School District No. Re 1 spends $11,848 per pupil, 27% below the Colorado average, a leaner-resourced district than most.
Douglas County School District No. Re 1 also operates American Academy (2,803 students) and Rock Canyon High School (2,325 students) alongside South Ridge Elementary an Ib World School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How South Ridge Elementary an Ib World School compares
South Ridge Elementary an Ib World School on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.7:1 | ▼ 17% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 26.0% | ▼ 32% | 38.5% | 51.7% |
| Enrollment | 371 | top 48% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.7:1
Leaner classes than 60% of US schools, a middle-of-the-pack class size.
371
Bigger than 43% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
26.0%
free-lunch eligible
- 32% below the Colorado average of 38.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.7:1
students per teacher
- 17% below state mean
Top 29% in Colorado - lower ratio than 71% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Funding equity
$11,848
per pupil, district-wide
- below Colorado avg of $16,273
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 360 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 7 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 2.2 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 56.6%
Hispanic or Latino 36.1%
African American 2.7%
Two or More 2.7%
Asian 1.3%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: White at 56.6% of enrollment.
Student-body diversity index 54.8/100
Simpson diversity index - at 54.8, South Ridge Elementary an Ib World School is more mixed than the Colorado school average of 47.1.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Douglas County School District No. Re 1, which includes South Ridge Elementary an Ib World School.
$11,848
Per student
-27%
vs Colorado
Avg $16,273
-29%
vs U.S.
Avg $16,593
Revenue mix
Local 52.8%
State 40.8%
Federal 6.4%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How South Ridge Elementary an Ib World School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| American Academy | Larger | Lower economic need | Higher S:T ratio |
| Rock Canyon High School | Larger | No free-lunch data | Higher S:T ratio |
| Legend High School | Larger | No free-lunch data | Higher S:T ratio |
| Mountain Vista High School | Larger | No free-lunch data | Higher S:T ratio |
| Chaparral High School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to South Ridge Elementary an Ib World School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,803
- Students per teacher
- 18:1
- Resource Index
- 33/100
- Enrollment
- 2,325
- Students per teacher
- 21.1:1
- Resource Index
- 47/100
- Enrollment
- 2,206
- Students per teacher
- 20.6:1
- Resource Index
- 29/100
- Enrollment
- 2,169
- Students per teacher
- 19.5:1
- Resource Index
- 50/100
- Enrollment
- 2,007
- Students per teacher
- 19.5:1
- Resource Index
- 50/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Colorado, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~371 students)
Next steps
Verify locally before acting on South Ridge Elementary an Ib World School's federal record.
- Compare South Ridge Elementary an Ib World School against another school. Compare schools
- Douglas County School District No. Re 1's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about South Ridge Elementary an Ib World School
How many students attend South Ridge Elementary an Ib World School?
South Ridge Elementary an Ib World School has 371 students enrolled. It is an elementary school in Castle Rock, CO.
What is the student-teacher ratio at South Ridge Elementary an Ib World School?
The student-teacher ratio at South Ridge Elementary an Ib World School is 13.7:1, which is 17% lower than the Colorado average of 16.6:1 and 13% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at South Ridge Elementary an Ib World School?
26.0% of students at South Ridge Elementary an Ib World School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of South Ridge Elementary an Ib World School?
The largest demographic group at South Ridge Elementary an Ib World School is White at 56.6% of enrollment, in Castle Rock, CO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.8/100.
What is the Resource Investment Index for South Ridge Elementary an Ib World School?
South Ridge Elementary an Ib World School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does South Ridge Elementary an Ib World School rank among elementary schools in Castle Rock?
By Resource Investment Index, South Ridge Elementary an Ib World School ranks #1 of 3 elementary schools in Castle Rock, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Castle Rock on the city page.
Is South Ridge Elementary an Ib World School a good school?
South Ridge Elementary an Ib World School earns 48/100 on the Resource Investment Index, with class sizes smaller than 71% of Colorado schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Douglas County School District No. Re 1?
Besides South Ridge Elementary an Ib World School, Douglas County School District No. Re 1 also operates American Academy (2,803 students), Rock Canyon High School (2,325 students), and Legend High School (2,206 students). See the Douglas County School District No. Re 1 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.