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Butterfield Charter

K-12 School
Porterville UnifiedPortervilleTulare County93257Charter School
📍 900 West Pioneer Avenue
Charter school — publicly funded but independently operated. Enrollment is open to all students regardless of neighborhood, typically through a lottery process. Charter schools have more flexibility in curriculum and operations but must meet state academic standards.
Scope Score
out of 100
State Rank
of 1,714 California middle schools
🌱
Building Momentum

Every school has strengths the data doesn’t fully capture. Visit and see for yourself.

Scope Scores are SchoolScope's analysis of public data from the California Dept. of Education (CAASPP, chronic absenteeism, suspension rates). They are not official CDE ratings and should not be the sole basis for school decisions. See methodology.

School overview

Enrollment
470 students
Student-Teacher Ratio
25:1
Free/Reduced Lunch
72%
Teachers
19 full-time

Dashboard indicators

How this school's scores changed from last year to this year

ELA Year-over-Year
Declined Significantly
-19.1 pts DFS change
Math Year-over-Year
Declined
-6.9 pts DFS change

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic76.6%
White17.2%
Asian1.1%
Black0.2%
Other4.9%

Performance breakdown

Performance breakdown for Butterfield Charter
CategoryPercentage
Exceeded Standard2.9%
Met Standard2.9%
Below Standard94.1%

Score Factors

Helping
Suspension rate: 0.1%
4.0pp below state avg (state avg 4.1%)
10% weight
Holding Back
Exceeded standard: 2.9%
14.4pp below state avg (state avg 17.3%)
30% weight
Met or exceeded: 5.9%
33.6pp below state avg (state avg 39.5%)
20% weight
Chronic absenteeism: 24.8%
5.5pp above state avg (state avg 19.3%)
15% weight
Baseline proficiency: 5.9%
Below state baseline (state avg 39.5%)
10% weight
Unlike traditional school ratings, we show our work. Every factor, its weight, and how this school compares to the state average — so you can decide what matters most to your family. The middle school Scope Score is weighted across 5 dimensions. See full methodology →

What other rankings don't show you

Most rating sites report "6% proficient" for Butterfield Charter and stop there. Here's what that number hides:

2.9% of students exceeded standard while 2.9% met it. That exceeded rate is 14.4 points below the state average of 17.3%. That's 11.0 points below the Porterville Unified district average of 14.0%. The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

California's Dashboard shows ELA performance declined significantly and Math declined year-over-year.

Chronic absenteeism is 24.8%, above the state average of 19.3%.

Why the exceeded vs. met split matters →
How to get into a charter school in LA →

Key metrics

% Exceeded Standard
2.9%
Students scoring above proficient
% Met or Above
5.9%
Students meeting standard
Growth (G6→G8)
N/A
Change in proficiency rate
Chronic Absenteeism
24.8%
Students missing 10%+ of days
Suspension Rate
0.1%
Students suspended at least once
Total Tested
34
Across all grades & subjects

ELA scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
5th0
6th
7th4
8th175.9%5.9%11.8%76.5%11.8%
11th1751.7%13.1%24.0%61.1%14.9%

Math scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
5th0
6th
7th4
8th170.0%0.0%11.8%88.2%0.0%
11th1760.0%2.8%5.1%92.0%2.8%
Estimated K-12 PathEstimate
Middle
Butterfield Charter
18.8
This school

Estimated K-12 path based on district and proximity. Actual attendance zones may differ. Contact your school district for official feeder information.

Private alternatives nearby

Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.

St. Anne School
N F St · Roman Catholic · Grades PK-8 · 161 students
15:1Private1.7 mi

Data source: California Department of Education (2025 test year) · How we score · Explore all schools · Blog