- Enrollment
- 766
- Students per teacher
- 29.5:1
- Resource Index
- 17/100
Elementary school (grades K-5) · San Luis, AZ
Rio Colorado Elementary School
Federal NCES profile for Rio Colorado Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataElementary school (grades K-5)NCES 040324001213
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 13
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rio Colorado Elementary School earns 21/100 on the Resource Investment Index, with class sizes larger than 99% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
- #3 of 7
- elementary schools in San Luis · Resource Index
- 21
- Resource Index · Lower
- 30.8:1
- large classes for Arizona
- 89.9%
- free-lunch eligible
Rio Colorado Elementary School has class sizes larger than 99% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Rio Colorado Elementary School ranks #3 of 7 elementary schools in San Luis, AZ.
School address
District: Gadsden Elementary District (4505) · Arizona
NCES ID 040324001213 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+36 students YoY
Rio Colorado Elementary School grew from 503 students in 2022-23 to 539 in 2023-24 (+7.2%).
Teacher FTE added 17.0 → 19.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+36 students YoY 040324001213 · San Luis, AZ Elementary · MID · TRAD
523 enr · 30.8:1 · 89.9% lunch · RII 21
Nearest enrollment peer: Cesar Chavez Elementary (766 students)
Rio Colorado Elementary School grew from 503 students in 2022-23 to 539 in 2023-24 (+7.2%). Teacher FTE added 17.0 → 19.0 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
Rio Colorado Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Cesar Chavez E
Cesar Chavez Elementary
766 students
- Desert View El
Desert View Elementary
760 students
- Arizona Desert
Arizona Desert Elementary School
662 students
- Southwest Jr.
Southwest Jr. High School
652 students
- Ed Pastor Elem
Ed Pastor Elementary 4
646 students
- This school
Rio Colorado Elementary School
523 students
What this shows Rio Colorado Elementary School reports 523 students on the CCD universe file.
How Rio Colorado Elementary School compares
Rio Colorado Elementary School is a growing campus on CCD: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 30.8:1 | ▲ 81% | 17:1 | 15.7:1 |
| Free-lunch eligible | 89.9% | ▲ 86% | 48.3% | 51.7% |
| Enrollment | 523 | top 36% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
30.8:1
Leaner classes than 2% of US schools, heavier class loads than most.
523
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
89.9%
free-lunch eligible
- 86% above the Arizona average of 48.3%
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
30.8:1
students per teacher
- 81% above state mean
Top 99% in Arizona - lower ratio than 1% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
48.9%
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
$10,364
per pupil, district-wide
- below Arizona avg of $13,502
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.2 FTE
Per 436 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 98.1%
White 1.5%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 98.1% of enrollment.
Student-body diversity index 3.7/100
Simpson diversity index - at 3.7, Rio Colorado Elementary School is less mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
District finance for Gadsden Elementary District (4505) reports $10,364 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Rio Colorado Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cesar Chavez Elementary | Larger | Lower economic need | Similar S:T ratio |
| Desert View Elementary | Larger | Lower economic need | Lower S:T ratio |
| Arizona Desert Elementary School | Larger | Similar economic need | Similar S:T ratio |
| Southwest Jr. High School | Similar size | Lower economic need | Lower S:T ratio |
| Ed Pastor Elementary 4 | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Rio Colorado Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 760
- Students per teacher
- 27.1:1
- Resource Index
- 24/100
- Enrollment
- 662
- Students per teacher
- 30.1:1
- Resource Index
- 17/100
- Enrollment
- 652
- Students per teacher
- 26.1:1
- Resource Index
- 26/100
- Enrollment
- 646
- Students per teacher
- 28.1:1
- Resource Index
- 21/100
Similar elementary schools in San Luis
6 comparable elementary schools (grades K-5) serving the same city.
Cesar Chavez Elementary
Standard public school
766 students 29.5:1 students per teacher
Desert View Elementary
Standard public school
760 students 27.1:1 students per teacher
Arizona Desert Elementary School
Standard public school
662 students 30.1:1 students per teacher
Ed Pastor Elementary 4
Standard public school
646 students 28.1:1 students per teacher
Harvest Preparatory Academy San Luis Az
Standard public school
575 students
Sun Valley Elementary School
Standard public school
260 students 26:1 students per teacher
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 (~523 students)
Frequently asked questions about Rio Colorado Elementary School
How many students attend Rio Colorado Elementary School?
Rio Colorado Elementary School has 523 students enrolled. It is an elementary school in San Luis, AZ. CCD year-over-year: 503 (2022-23) → 539 (2023-24), up 36.
What is the student-teacher ratio at Rio Colorado Elementary School?
The student-teacher ratio at Rio Colorado Elementary School is 30.8:1, which is 81% higher than the Arizona average of 17:1 and 96% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Rio Colorado Elementary School?
89.9% of students at Rio Colorado Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Rio Colorado Elementary School?
The largest demographic group at Rio Colorado Elementary School is Hispanic or Latino at 98.1% of enrollment, in San Luis, AZ.
What is the Resource Investment Index for Rio Colorado Elementary School?
Rio Colorado Elementary School has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Rio Colorado Elementary School rank among elementary schools in San Luis?
By Resource Investment Index, Rio Colorado Elementary School ranks #3 of 7 elementary schools in San Luis, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in San Luis on the city page.
What other schools are in Gadsden Elementary District (4505)?
Besides Rio Colorado Elementary School, Gadsden Elementary District (4505) also operates Cesar Chavez Elementary (766 students), Desert View Elementary (760 students), and Arizona Desert Elementary School (662 students). See the Gadsden Elementary District (4505) district page for the complete list.