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Public elementary school · Mark Twain Union Elementary · Copperopolis, California

Copperopolis Elementary

Copperopolis Elementary rates 6.8, right at the middle of Mark Twain Union Elementary's elementary schools, whose rated median is 6.7.

Elementary schools, 1 to 10This campus against public elementary schools around it that are rated on verified state test data.
6.8this school

6.8 on a one-to-ten scale; the Mark Twain Union Elementary median is 6.7.

#3,866 of 9,557 schools in California · Mark Twain Union Elementary: 2 elementary schools rated, median 6.7

The brief

A Mark Twain Union Elementary elementary school where students score 15 points below what's typical for similar communities.

It ranks 3,866 of 9,557 schools in California and 1 of 2 in Mark Twain Union Elementary.

Copperopolis Elementary is listed in Mark Twain Union Elementary, and a district label does not verify attendance for an address: confirm the zoned campus with the district before you commit to a street.

Math28%12 points below the California average of 40%2025 CAASPP
Reading38%9 points below the California average of 47%2025 CAASPP
Proficiency is down 29 points across the 17-year record (2009–2025) and has held near 33% recently.2025 CAASPP; 42 test records from CA state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
9.7
50% of the rating
Academics
4.9
30% of the rating
Resources & Environment
2.5
20% of the rating
About this school's data1 correction under review · rating: low confidence · 6 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 34% (multi-year average, 2009-2025) · reading/ELA 41% (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 95228; this does not measure the attendance area.

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.
Copperopolis Elementary and the 20 nearest elementary schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$107,857
Median home value
$453,400
Median rent
$1,931/mo
College educated
22.3%
Homeownership
82%
Poverty rate
5.9%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95228; this is area context, not an attendance boundary.

Getting around

Walk Score
21
Car-Dependent
Bike Score
4
Somewhat Bikeable
County reported crime
1,311/100K
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 byWalk Score

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.

Who goes here

Free or reduced lunch
50.5%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

The record

What is on file, and where each number came from.

Questions families ask

What grades does Copperopolis Elementary serve?

Copperopolis Elementary serves students in grades Kindergarten through 6th.

How many students attend Copperopolis Elementary?

Copperopolis Elementary has an enrollment of approximately 198 students.

What is the student-teacher ratio at Copperopolis Elementary?

The student-teacher ratio at Copperopolis Elementary is 19.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Copperopolis Elementary rank in CA?

Copperopolis Elementary ranks #3,866 of 9,557 schools in CA.

What is Copperopolis Elementary's MySchoolScout rating?

Copperopolis Elementary has a current MySchoolScout rating of 6.8 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 Copperopolis Elementary?

Based on loaded state assessment records, Copperopolis Elementary has 34% math proficiency (multi-year average, 2009-2025) and 41% reading/ELA proficiency (multi-year average, 2009-2025).

Is Copperopolis Elementary a charter school?

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

Is Copperopolis Elementary a Title I school?

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

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

50.5% of students at Copperopolis 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
198
Student-teacher ratio
19.8:1
Teachers (FTE)
10
Type
Regular
Title I
No
Setting
Distant Rural
County
Calaveras County
Rank in district
#1 of 2
Schools in district
3
District spending per student
$13,679
NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
14.4%
Census SAIPE · 2024
Area population (ZIP 95228)
4,880
Area median age
51.2

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

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.