Skip to main content

Excellent

#1162 of 9,539 schools in CA

Top 12% in state

Carlton Elementary

Elementary School · Union Elementary · San Jose, CA

An Union Elementary elementary school where students score 7 points above what's typical for similar communities.

2421 Carlton Ave., San Jose, CA 95124

  • Math 81% vs CA 39% (2024)
  • Reading 78% vs CA 45% (2024)
  • 27.6:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress9.1Excellent50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data12
Annual Change-0.24 pts/yr
Data Period2009–2024
TrendStable
Academics9.1Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency80.8% (2024 CAASPP)
Reading/ELA Proficiency78.3% (2024 CAASPP)
Math vs. State Avg+35.1 pts
Reading vs. State Avg+35.5 pts
Overall Proficiency80% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)72% (model expectation from 2024 CAASPP)
vs. Expected+7.2 pts
Adjusted Percentile86th
Resources & Environment4.9Below Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio27.6:1
District spending per student$16,087
Chronic Absenteeism7.6%

Students at Carlton Elementary score 80% proficient, which is above what's typical for similar communities (expected: 72%).

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency81%(2024 CAASPP)
School
State
39%(2024 CAASPP)
ELA Proficiency78%(2024 CAASPP)
School
State
45%(2024 CAASPP)

Trend

→ Steady

Proficiency is down 7 points across the 16-year record (2009–2024) and has held near 80% recently.

Show all 12 years
2009
Math
90%
ELA
82%
2010
Math
86%
ELA
86%
2011
Math
88%
ELA
83%
2012
Math
89%
ELA
80%
2014
Math
67%
ELA
77%
2015
Math
76%
ELA
81%
2016
Math
83%
ELA
80%
2017
Math
80%
ELA
82%
2018
Math
84%
ELA
81%
2019
Math
84%
ELA
81%
2022
Math
86%
ELA
84%
2024
Math
81%
ELA
78%

Multi-year averages used by the rating model: math 82% (multi-year average, 2009-2024) · reading/ELA 81% (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

3.6%

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 Carlton 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 San Jose map →

Getting around & local context

  • Walk 46Car-Dependent
  • Transit 34Some Transit
  • Bike 50Bikeable
  • City Safety: High3,210/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (San Jose), 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

$188,433

Median home value

$1,596,700

Median rent

$2,936/mo

College educated

60.9%

Homeownership

72.1%

Poverty rate

4%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95124; this is area context, not an attendance boundary.

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Alta Vista ElementaryEnrollment path unverified7.6K–50.6 mi576Compare →
Learning Pathways KindergartenPrivate · tuitionNot ratedK0.7 mi32Compare →
Learning Pathways KindergartenPrivate · tuition6.4privatePK–K0.7 mi30Compare →
Farnham CharterCharter · enrollment unverified7.3K–50.9 mi353Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

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

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Public and private scores come from different models and are shown side by side, not blended into one ranking.

Union Elementary

Schools in district
8
Rank in district
#3 of 8
District spending per student
$16,087NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
2.7%Census SAIPE · 2024

Carlton Elementary is listed in Union Elementary; a district label does not verify attendance for an address.

About Carlton Elementary

Carlton Elementary is a public elementary school in San Jose, CA, part of Union Elementary, serving approximately 662 students in grades Kindergarten-5th with a 27.6:1 student-teacher ratio. It holds a MySchoolScout rating of 8.3 out of 10 and ranks #1,162 of 9,539 schools in CA. State assessment records show 82% math proficiency (multi-year average, 2009-2024) and 81% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Carlton Elementary

What grades does Carlton Elementary serve?

Carlton Elementary serves students in grades Kindergarten through 5th.

How many students attend Carlton Elementary?

Carlton Elementary has an enrollment of approximately 662 students.

What is the student-teacher ratio at Carlton Elementary?

The student-teacher ratio at Carlton Elementary is 27.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Carlton Elementary rank in CA?

Carlton Elementary ranks #1,162 of 9,539 schools in CA.

What is Carlton Elementary's MySchoolScout rating?

Carlton Elementary has a current MySchoolScout rating of 8.3 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 Carlton Elementary?

Based on loaded state assessment records, Carlton Elementary has 82% math proficiency (multi-year average, 2009-2024) and 81% reading/ELA proficiency (multi-year average, 2009-2024).

Is Carlton Elementary a charter school?

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

Is Carlton Elementary a Title I school?

No, Carlton Elementary is not currently a Title I school.

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

3.6% of students at Carlton 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
662
Student-Teacher Ratio
27.6:1
Teachers (FTE)
24
Type
regular
Setting
Large City
County
Santa Clara County
Chronic Absenteeism (SY 2022-23)
7.6%
Area population (ZIP 95124)
51,991
Area average commute
27.8 min
Area median age
39.8
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 95124; this does not measure the attendance area.

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.