Serving 564 students in grades Kindergarten-5, Rio Del Oro Elementary School ranks in the top 30% of all schools in California for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 46% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 57% (which is higher than the California state average of 47%).
The student-teacher ratio of 22:1 is higher than the California state level of 21:1.
Minority enrollment is 63% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 564 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 63%
- Overall Testing Rank: Top 30% in CA
- Math Proficiency: 46% (Top 30%)
- Reading Proficiency: 57% (Top 30%)
- Science Proficiency: 50-54% (Top 20%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Rio Del Oro Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Science Proficiency
Diversity
School Overview
Rio Del Oro Elementary School's student population of 564 students has grown by 23% over five school years.
The teacher population of 26 teachers has grown by 18% over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
564 students
Total Classroom Teachers
26 teachers
Year Founded
2004
School Calendar
School Rankings
Rio Del Oro Elementary School ranks within the top 30% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Rio Del Oro Elementary School is 0.72, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#2361 out of 9523 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
46%
34%
Reading/Language Arts Test Scores (% Proficient)
57%
47%
Science Test Scores (% Proficient)
50-54%
29%
Student-Teacher Ratio
22:1
21:1
American Indian
n/a
1%
Asian
10%
12%
Hispanic
34%
56%
Black
4%
5%
White
37%
20%
Hawaiian
1%
n/a
Two or more races
14%
6%
All Ethnic Groups
Eligible for Free Lunch
35%
54%
Eligible for Reduced Lunch
9%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Bulldog
Frequently Asked Questions
What is Rio Del Oro Elementary School's ranking?
Rio Del Oro Elementary School is ranked #2361 out of 9,523 schools, which ranks it among the top 30% of public schools in California.
What schools are Rio Del Oro Elementary School often compared to?
Rio Del Oro Elementary Schoolis often viewed alongside schools like Arboga Elementary School, Cobblestone Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
46% of students have achieved math proficiency (compared to the 34% CA state average), while 57% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Rio Del Oro Elementary School?
564 students attend Rio Del Oro Elementary School.
What is the racial composition of the student body?
37% of Rio Del Oro Elementary School students are White, 34% of students are Hispanic, 14% of students are Two or more races, 10% of students are Asian, 4% of students are Black, and 1% of students are Hawaiian.
What is the student-teacher ratio of Rio Del Oro Elementary School?
Rio Del Oro Elementary School has a student ration of 22:1, which is higher than the California state average of 21:1.
What grades does Rio Del Oro Elementary School offer ?
Rio Del Oro Elementary School offers enrollment in grades Kindergarten-5
What school district is Rio Del Oro Elementary School part of?
Rio Del Oro Elementary School is part of Plumas Lake Elementary School District.
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