- Enrollment
- 2,476
- Students per teacher
- 20:1
- Resource Index
- 34/100
Elementary school (grades K-5) · Denver, CO
Castro Elementary School
Federal NCES profile for Castro Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataElementary school (grades K-5)NCES 080336000424
👥 S:T ratio 52
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castro Elementary School earns 27/100 on the Resource Investment Index, even as it posts class sizes smaller than 83% of Colorado schools.
- #29 of 31
- elementary schools in Denver · Resource Index
- 27
- Resource Index · Lower
- 12.1:1
- small classes for Colorado
- 90.7%
- free-lunch eligible
Castro Elementary School has class sizes smaller than 83% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Castro Elementary School ranks #29 of 31 elementary schools in Denver, CO.
School address
NCES ID 080336000424 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-28 students YoY
Castro Elementary School shrank from 259 students in 2022-23 to 231 in 2023-24 (-10.8%).
Teacher FTE lost 20.8 → 17.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-28 students YoY 080336000424 · Denver, CO Elementary · SMALL · TRAD
241 enr · 12.1:1 · 90.7% lunch · RII 27
Nearest enrollment peer: East High School (2,476 students)
Castro Elementary School shrank from 259 students in 2022-23 to 231 in 2023-24 (-10.8%). Teacher FTE lost 20.8 → 17.1 across the same CCD years. Read with this school → · District book → · Colorado schools → · Find another →
Castro Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- East High Scho
East High School
2,476 students
- Northfield Hig
Northfield High School
2,137 students
- South High Sch
South High School
1,950 students
- North High Sch
North High School
1,653 students
- Thomas Jeffers
Thomas Jefferson High School
1,390 students
- This school 241
Castro Elementary School
241 students
What this shows Castro Elementary School reports 241 students on the CCD universe file.
How Castro Elementary School compares
Castro Elementary School is a shrinking campus on CCD: ratios and free-lunch share vs Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.1:1 | ▼ 27% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 90.7% | ▲ 136% | 38.5% | 51.7% |
| Enrollment | 241 | top 72% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.1:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
241
Bigger than 24% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
90.7%
free-lunch eligible
- 136% above the Colorado average of 38.5%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
12.1:1
students per teacher
- 27% below state mean
Top 17% in Colorado - lower ratio than 83% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
69.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,206
per pupil, district-wide
- below Colorado avg of $17,910
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 85.9%
African American 5.0%
Asian 2.9%
Native Hawaiian / Pacific Islander 2.9%
White 2.1%
Two or More 1.2%
Largest group: Hispanic or Latino at 85.9% of enrollment.
Student-body diversity index 25.7/100
Simpson diversity index - at 25.7, Castro Elementary School is less mixed than the Colorado school average of 47.1.
Programs
District finance for School District No. 1 in the County of Denver and State of C reports $17,206 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Castro Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East High School | Larger | Lower economic need | Higher S:T ratio |
| Northfield High School | Larger | Lower economic need | Higher S:T ratio |
| South High School | Larger | Lower economic need | Higher S:T ratio |
| North High School | Larger | Lower economic need | Higher S:T ratio |
| Thomas Jefferson High School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Castro Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,137
- Students per teacher
- 21.6:1
- Resource Index
- 35/100
- Enrollment
- 1,950
- Students per teacher
- 21.4:1
- Resource Index
- 32/100
- Enrollment
- 1,653
- Students per teacher
- 16.7:1
- Resource Index
- 49/100
- Enrollment
- 1,390
- Students per teacher
- 18.8:1
- Resource Index
- 31/100
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~241 students)
Frequently asked questions about Castro Elementary School
How many students attend Castro Elementary School?
Castro Elementary School has 241 students enrolled. It is an elementary school in Denver, CO. CCD year-over-year: 259 (2022-23) → 231 (2023-24), down 28.
What is the student-teacher ratio at Castro Elementary School?
The student-teacher ratio at Castro Elementary School is 12.1:1, which is 27% lower than the Colorado average of 16.6:1 and 23% 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 Castro Elementary School?
90.7% of students at Castro Elementary School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Castro Elementary School?
The largest demographic group at Castro Elementary School is Hispanic or Latino at 85.9% of enrollment, in Denver, CO.
What is the Resource Investment Index for Castro Elementary School?
Castro Elementary School has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castro Elementary School rank among elementary schools in Denver?
By Resource Investment Index, Castro Elementary School ranks #29 of 31 elementary schools in Denver, 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 Denver on the city page.
What other schools are in School District No. 1 in the County of Denver and State of C?
Besides Castro Elementary School, School District No. 1 in the County of Denver and State of C also operates East High School (2,476 students), Northfield High School (2,137 students), and South High School (1,950 students). See the School District No. 1 in the County of Denver and State of C district page for the complete list.