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SCHOOL COMMUNITY·GADSDEN ELEMENTARY DISTRICT (4505)·NCES 040324001213

Rio Colorado Elementary School

1055 N. Main Street, San Luis, AZ 85349 · (928) 627-6902 · Yuma County
GRADES PK–06ELEMENTARY32-TOWNREGULAR SCHOOL523 STUDENTS
B
allk12 Grade
Scored higher than 55% of Arizona public elementary schools
  • C+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ·Beats expectations Not available for this school, so the grade uses the other parts.
  • AThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Arizona public elementary schools

Enrollment
523
Elementary
DISTRICT 561 · STATE 451
Student : Teacher
24.9:1
21 FTE teachers
DISTRICT 31.7:1 · STATE 17.0:1
Free / Reduced Lunch
,
Title I proxy
STATE 95%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten479%
Grade 17114%
Grade 27715%
Grade 38216%
Grade 48616%
Grade 59017%
Grade 67013%

This year's kindergarten class (47) is 33% smaller than its 6th grade class (70).

Student demographics
4%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 2% · STATE 65% · US 70%
White
82%
DISTRICT 1% · STATE 33% · US 43%
Hispanic
51398%
DISTRICT 99% · STATE 48% · US 30%
Native American
20%
DISTRICT 0% · STATE 5% · US 1%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
28154%
Female
24246%

School pathway

Students here typically continue to
Rio Colorado Elementary School→Southwest Jr. High School
Based on grade levels within Gadsden Elementary District (4505). Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

AASA 2024-25 . % Passing
English Language Arts
23.0%
AZ avg 45.4% . +9.0pp since 2017
Math
35.0%
AZ avg 37.8% . +18.0pp since 2017

What this means: On the AASA, Arizona's statewide test, about 23 of every 100 students at this school read and write at grade level and about 35 of 100 do math at grade level. Across all Arizona schools, those numbers are about 45 and 38. Reading and writing scores are up about 9 points since 2017, while math scores are up about 18 points.

AASA results by year

School yearEnglish Language ArtsMath
2024-2523.0%35.0%
2023-2423.0%25.0%
2022-2321.0%29.0%
2021-2219.0%21.0%
2020-2116.0%2.0%
2018-1927.0%26.0%
2017-1814.0%17.0%
% Passing, all students and all tested grades.
Source: AASA. All students, all grades. See all years and grades →

Where Rio Colorado Elementary School ranks

Among elementary schools
MeasureThis schoolIn ArizonaIn Yuma County
Math proficiency
ranked highest first
35.0%#447 of 1,072
▲ 177
#7 of 38
▲ 21
Reading proficiency
ranked highest first
23.0%#824 of 1,072
▼ 14
#33 of 38
no change
3-year test score change
ranked biggest gain first
+9.0pp#93 of 930#6 of 34
Enrollment
ranked largest first
523#457 of 1,223#18 of 40
Students per teacher
ranked fewest first
24.9:1#956 of 991#30 of 35
Diversity index
ranked most diverse first
3.8%#972 of 1,007#27 of 35
Enrollment change since 2017-18
ranked steepest decline first
-16.1%#393 of 721#8 of 21
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
523
+28 (+6%) vs 2020
+27% since 1990-91, when it was 413
Student : Teacher
24.9:1
was 33.0:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255232124.9:1N/A
2023-245391928.4:1N/A
2022-235031729.6:197% (487)
2020-214951533.0:1N/A
2017-186232031.1:197% (603)
2015-166012128.6:1100% (598)
2010-117262726.9:1100% (723)
2000-016552823.4:1N/A
1990-914131527.5:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Rio Colorado Elementary School.

Since 2017-18: students down 16% (623 to 523); teachers up 5% (20 to 21).

About Rio Colorado Elementary School

Rio Colorado Elementary School is a medium-sized elementary school in San Luis, Arizona, one of the schools in Gadsden Elementary District (4505). The school reports 523 students in pre-K through 6.

Rio Colorado Elementary School is one school in a 9-school district, Gadsden Elementary District (4505), which enrolls 5,196 students.

About 98% of the student body at Rio Colorado Elementary School is Hispanic. County-wide, 65% of Yuma County residents are Hispanic. Rio Colorado Elementary School's diversity index is 4%, against a US figure of 70%.

Teachers at the school number 21 full-time equivalents, and the ratio is 24.9:1. On average, elementary schools in Arizona have 17.0:1, compared with 24.9:1 here.

Measured against Arizona public elementary schools, Rio Colorado Elementary School receives a B. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.

Across Yuma County, the median household income is $62,876, roughly 17% of adults have a four-year degree or more, and about 13% of residents live below the federal poverty line. Yuma County is home to 89 public schools and about 38,800 public school students.

The closest public school, San Luis Pre-School, is less than a tenth of a mile from Rio Colorado Elementary School. There are at least 8 other public schools within five miles.

Federal records code the school's setting as Town: Distant.

Enrollment has grown by 28 students since 2020-21, to 523. Students per teacher fell from 33.0 in 2020-21 to 24.9 in 2024-25.

Conversations here can range across enrollment questions, class placement, and PTA news. Reviews and ratings from people who know the school are welcome.

Yuma County at a glance

View full county profile
Population
211,741
Census ACS
Median income
$62,876
Household, ACS
Bachelor's+
17%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
89
38,800 students

Quick facts

School name
Rio Colorado Elementary School
District
Gadsden Elementary District (4505)
Address
1055 N. Main Street, San Luis, AZ 85349
Phone
(928) 627-6902
County
Yuma County
Level
Elementary
Grade range
PK–06
Total enrollment
523
Teachers (FTE)
21
Student–teacher ratio
24.9:1
Locale
32-Town: Distant
NCES ID
040324001213
Charter school
No
Virtual school
No

Related schools

Other schools in Gadsden Elementary District (4505)
Other schools in San Luis
Nearby schools

Frequently asked questions

About Rio Colorado Elementary School
How large is Rio Colorado Elementary School?
Rio Colorado Elementary School enrolls approximately 523 students in grades PK-06.
What age range does Rio Colorado Elementary School serve?
Rio Colorado Elementary School serves students from grade PK through grade 06.
How many students per teacher at Rio Colorado Elementary School?
Approximately 24.9:1 students per teacher at Rio Colorado Elementary School.
What is the student diversity at Rio Colorado Elementary School?
Student demographics at Rio Colorado Elementary School are roughly 2% White, 98% Hispanic.
Is Rio Colorado Elementary School public or private?
Rio Colorado Elementary School is a public K-12 school, overseen by Gadsden Elementary District (4505).
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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