Serving 395 students in grades Kindergarten-5, Guin Foss 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 45-49% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is higher than the California state average of 47%).
The student-teacher ratio of 25:1 is higher than the California state level of 21:1.
Minority enrollment is 81% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 395 students
- Student-Teacher Ratio: 25:1
- Minority Enrollment: 81%
- Overall Testing Rank: Top 30% in CA
- Math Proficiency: 45-49% (Top 30%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 55-59% (Top 10%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Guin Foss Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Science Proficiency
School Overview
Guin Foss Elementary School's student population of 395 students has stayed relatively flat over five school years.
The teacher population of 16 teachers has grown by 6% over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
395 students
Total Classroom Teachers
16 teachers
School Rankings
Guin Foss 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 Guin Foss Elementary School is 0.53, which is less 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
#2545 out of 9523 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
45-49%
34%
Reading/Language Arts Test Scores (% Proficient)
50-54%
47%
Science Test Scores (% Proficient)
55-59%
29%
Student-Teacher Ratio
25:1
21:1
American Indian
n/a
1%
Asian
9%
12%
Hispanic
65%
56%
Black
1%
5%
White
19%
20%
Hawaiian
n/a
n/a
Two or more races
6%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)28.1%
27.7%
Eligible for Free Lunch
44%
54%
Eligible for Reduced Lunch
17%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Guin Foss Elementary School's ranking?
Guin Foss Elementary School is ranked #2545 out of 9,523 schools, which ranks it among the top 30% of public schools in California.
What schools are Guin Foss Elementary School often compared to?
Guin Foss Elementary Schoolis often viewed alongside schools like Ladera Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
45-49% of students have achieved math proficiency (compared to the 34% CA state average), while 50-54% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Guin Foss Elementary School?
395 students attend Guin Foss Elementary School.
What is the racial composition of the student body?
65% of Guin Foss Elementary School students are Hispanic, 19% of students are White, 9% of students are Asian, 6% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Guin Foss Elementary School?
Guin Foss Elementary School has a student ration of 25:1, which is higher than the California state average of 21:1.
What grades does Guin Foss Elementary School offer ?
Guin Foss Elementary School offers enrollment in grades Kindergarten-5
What school district is Guin Foss Elementary School part of?
Guin Foss Elementary School is part of Tustin Unified School District.
School Calendar
View the Guin Foss Elementary School yearly calendar below. Note key dates such as:
Event
Date
First day of School
August 13, 2026 (Thursday)
First Day Back from Winter Recess
January 05, 2027 (Tuesday)
Last day of School
May 28, 2027 (Friday)
First day of School
August 12, 2027 (Thursday)
School Reviews
5 10/10/2025
Our kids have attended a few different schools in the area, both private and public, and Guin Foss is our favorite. It has a great community feel and the best teachers!
1 10/10/2025
Guin Foss was such a great school. I have fond memories and feel like I learned so much. Love the teachers.
Review Guin Foss Elementary School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Phone Bans Are Expanding: Will They Actually Help Your Child?
Phone bans are spreading in public schools nationwide. Learn how to evaluate whether a school's cellphone policy will improve your child's learning and well-being.
Should You Move for a Better Public School or Stay Put?
Considering a move to a higher-rated public school? Learn how to weigh school quality, housing costs, and family priorities before relocating.
How to Compare Public School Value Beyond Test Scores
Learn how to evaluate public school value using student support, school climate, opportunities, and outcomes, not just standardized test scores.
