The brief
A Colton Joint Unified elementary school serving grades Kindergarten – 6th.
Students at Mary B. Lewis Elementary score 24% proficient, which is above what's typical for similar communities (expected: 23%).
It ranks 8,536 of 9,557 schools in California and 21 of 27 in Colton Joint Unified.
- 202524%
- 202425%
- 2023: no results on file
- 202227%
- 2020–2021: no results on file
- 201928%
- 201828%
- 201721%
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2025
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.
Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.
Full Profile · 3/3 metrics
Multi-year averages used by the rating model: math 22% (multi-year average, 2009-2025) · reading/ELA 31% (multi-year average, 2009-2025).
- 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 · 2025 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 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 · 2025 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · 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 92316; 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, 2009-2025; directory SY 2023–24
The neighborhood
Where it sits, and what the area looks like.The area
- Median income
- $82,117
- Median home value
- $448,200
- Median rent
- $1,450/mo
- College educated
- 10.6%
- Homeownership
- 69.1%
- Poverty rate
- 13.4%
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 92316; this is area context, not an attendance boundary.
Getting around
- Walk Score
- 42
- Car-Dependent
- Bike Score
- 40
- Somewhat Bikeable
- County reported crime
- 1,961/100K
- Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.
Walk, transit and bike scores by
FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details
Programs and who goes here
What the campus offers, and who it enrolls.Programs
- Gifted and talented
- Available
- A program for qualifying students · CRDC via Urban Institute · SY 2021–22
Who goes here
- Free or reduced lunch
- 94.3%
- Students qualifying for federal meal assistance. Shown separately, never in the score.
NCES Common Core of Data (CCD).
Compare nearby
Grade-compatible schools using the same rating model.- 7.6Compare →
- 7.2Compare →
- 6.5Compare →
- 6.5Compare →
- 6.0Compare →
- 5.8Compare →
- 5.6Compare →
- Mary B. Lewis Elementary4.4
- 4.4Compare →
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
The record
What is on file, and where each number came from.Questions families ask
What grades does Mary B. Lewis Elementary serve?
Mary B. Lewis Elementary serves students in grades Kindergarten through 6th.
How many students attend Mary B. Lewis Elementary?
Mary B. Lewis Elementary has an enrollment of approximately 575 students.
What is the student-teacher ratio at Mary B. Lewis Elementary?
The student-teacher ratio at Mary B. Lewis Elementary is 24:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mary B. Lewis Elementary rank in CA?
Mary B. Lewis Elementary ranks #8,536 of 9,557 schools in CA.
What is Mary B. Lewis Elementary's MySchoolScout rating?
Mary B. Lewis Elementary has a current MySchoolScout rating of 4.4 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 Mary B. Lewis Elementary?
Based on loaded state assessment records, Mary B. Lewis Elementary has 22% math proficiency (multi-year average, 2009-2025) and 31% reading/ELA proficiency (multi-year average, 2009-2025).
Is Mary B. Lewis Elementary a charter school?
No, Mary B. Lewis Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Mary B. Lewis Elementary a Title I school?
No, Mary B. Lewis Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mary B. Lewis Elementary?
94.3% of students at Mary B. Lewis 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 facts
- Grades
- Kindergarten – 6th
- Enrollment
- 575
- Student-teacher ratio
- 24:1
- Teachers (FTE)
- 24
- Type
- Regular
- Title I
- No
- Setting
- Large Suburb
- County
- San Bernardino County
- Phone
- (909) 580-5025
- Rank in district
- #21 of 27
- Schools in district
- 28
- District spending per student
- $18,938
- NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 16.5%
- Census SAIPE · 2024
- Area population (ZIP 92316)
- 31,909
- Area average commute
- 31.7 min
- Area median age
- 33.3
NCES Common Core of Data (CCD) (SY 2023–24).
Sources and official links
Keep exploring
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Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.