Skip to main content

Below Average

#7484 of 9,539 schools in CA

Guin Foss Elementary

Elementary School · Tustin Unified · Tustin, CA

A Tustin Unified elementary school where students score 11 points above what's typical for similar communities.

300 South C St., Tustin, CA 92780

  • Math 54% vs CA 39% (2024)
  • Reading 53% vs CA 45% (2024)
  • 27.7:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress3.8Needs Improvement50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data12
Annual Change-2.1 pts/yr
Data Period2009–2024
TrendDeclining
Academics8.5Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency54% (2024 CAASPP)
Reading/ELA Proficiency53.2% (2024 CAASPP)
Math vs. State Avg+8.3 pts
Reading vs. State Avg+10.4 pts
Overall Proficiency54% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)42% (model expectation from 2024 CAASPP)
vs. Expected+11.2 pts
Adjusted Percentile77th
Resources & Environment2.5Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio27.7:1
District spending per student$15,477
Chronic Absenteeism26.7%

Students at Guin Foss Elementary score 54% proficient, which is above what's typical for similar communities (expected: 42%).

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency54%(2024 CAASPP)
School
State
39%(2024 CAASPP)
ELA Proficiency53%(2024 CAASPP)
School
State
45%(2024 CAASPP)

Trend

↓ Declining

Proficiency has fallen 11 points since 2018, to 54% in 2024, across a 16-year record (2009–2024).

Show all 12 years
2009
Math
82%
ELA
76%
2010
Math
86%
ELA
77%
2011
Math
81%
ELA
78%
2012
Math
89%
ELA
77%
2014
Math
57%
ELA
62%
2015
Math
67%
ELA
67%
2016
Math
65%
ELA
66%
2017
Math
65%
ELA
71%
2018
Math
61%
ELA
67%
2019
Math
61%
ELA
67%
2022
Math
46%
ELA
51%
2024
Math
54%
ELA
53%

Multi-year averages used by the rating model: math 65% (multi-year average, 2009-2024) · reading/ELA 65% (multi-year average, 2009-2024)

Based on 30 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

56.7%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Guin Foss Elementary sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Los Angeles map →

Getting around & local context

  • Walk 45Car-Dependent
  • Bike 54Bikeable
  • City Safety: High2,328/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Tustin), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$98,647

Median home value

$832,200

Median rent

$2,211/mo

College educated

35.5%

Homeownership

45.8%

Poverty rate

11.1%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 92780; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Learning CornerPrivate · tuitionNot rated4–120.2 mi6Compare →
Fairmont Private School, North Tustin CampusPrivate · tuition7.5PK–80.3 mi317Compare →
Fairmont Private SchoolsPrivate · tuitionNot ratedK–80.3 mi300Compare →
Foothill Montessori SchoolPrivate · tuitionNot ratedPK–10.3 mi15Compare →

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Tustin Unified

Schools in district
28
Rank in district
#21 of 28
District spending per student
$15,477NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
9.5%Census SAIPE · 2024

Guin Foss Elementary is listed in Tustin Unified; a district label does not verify attendance for an address.

About Guin Foss Elementary

Guin Foss Elementary is a public elementary school in Tustin, CA, part of Tustin Unified, serving approximately 416 students in grades Kindergarten-5th with a 27.7:1 student-teacher ratio. It holds a MySchoolScout rating of 4.9 out of 10 and ranks #7,484 of 9,539 schools in CA. State assessment records show 65% math proficiency (multi-year average, 2009-2024) and 65% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Guin Foss Elementary

What grades does Guin Foss Elementary serve?

Guin Foss Elementary serves students in grades Kindergarten through 5th.

How many students attend Guin Foss Elementary?

Guin Foss Elementary has an enrollment of approximately 416 students.

What is the student-teacher ratio at Guin Foss Elementary?

The student-teacher ratio at Guin Foss Elementary is 27.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Guin Foss Elementary rank in CA?

Guin Foss Elementary ranks #7,484 of 9,539 schools in CA.

What is Guin Foss Elementary's MySchoolScout rating?

Guin Foss Elementary has a current MySchoolScout rating of 4.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Guin Foss Elementary?

Based on loaded state assessment records, Guin Foss Elementary has 65% math proficiency (multi-year average, 2009-2024) and 65% reading/ELA proficiency (multi-year average, 2009-2024).

Is Guin Foss Elementary a charter school?

No, Guin Foss Elementary is not a charter school. It is a traditional public school operated by the local school district.

Is Guin Foss Elementary a Title I school?

No, Guin Foss Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Guin Foss Elementary?

56.7% of students at Guin Foss Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 5th
Enrollment
416
Student-Teacher Ratio
27.7:1
Teachers (FTE)
15
Type
regular
Setting
Large Suburb
County
Orange County
Chronic Absenteeism (SY 2022-23)
26.7%
Area population (ZIP 92780)
54,495
Area average commute
23.4 min
Area median age
35.4
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 92780; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.