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#6341 of 9,539 schools in CA

Butterfield Charter

School · Porterville Unified · Porterville, CA

A Porterville Unified charter school where students score 23 points below what's typical for similar communities.

Charter

600 West Grand Ave., Porterville, CA 93257

  • Math 3% vs CA 32% (2024)
  • Reading 14% vs CA 50% (2024)
  • 72.0% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress9.0Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-0.27 pts/yr
Data Period2009–2024
TrendStable
Academics2.1Needs Improvement25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency3.8% (2024 CAASPP)
Reading/ELA Proficiency17.8% (2024 CAASPP)
Math vs. State Avg-27.9 pts
Reading vs. State Avg-28.3 pts
Overall Proficiency11% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)34% (model expectation from 2024 CAASPP)
vs. Expected-23.1 pts
Adjusted Percentile5th
College Readiness7.7Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate72%
IB ProgramNo
Resources & Environment2.1Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio24.7:1
District spending per student$18,988
Chronic Absenteeism56.4%

Students at Butterfield Charter score 11% proficient, which is below what's typical for similar communities (expected: 34%).

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency3%(2024 CAASPP)
School
State
32%(2024 CAASPP)
ELA Proficiency14%(2024 CAASPP)
School
State
50%(2024 CAASPP)

Trend

↓ Declining

Proficiency has fallen 11 points since 2019, to 8% in 2024, across a 16-year record (2009–2024).

Show all 14 years
2009
Math
5%
ELA
5%
2010
Math
25%
ELA
25%
2011
Math
15%
ELA
25%
2012
Math
15%
ELA
17%
2013
Math
15%
ELA
5%
2014
Math
5%
ELA
25%
2015
Math
3%
ELA
3%
2016
Math
3%
ELA
17%
2017
Math
3%
ELA
17%
2018
Math
3%
ELA
37%
2019
Math
3%
ELA
37%
2020*
Math
3%
ELA
17%
2021*
Math
3%
ELA
17%
2024
Math
3%
ELA
14%

Multi-year averages used by the rating model: math 7% (multi-year average, 2009-2024) · reading/ELA 18% (multi-year average, 2009-2024)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 32 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

71.9%

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 Butterfield Charter sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 14Car-Dependent
  • Bike 37Somewhat Bikeable
  • City Safety: High1,876/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Porterville), 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

$58,261

Median home value

$276,400

Median rent

$1,086/mo

College educated

14.7%

Homeownership

55.4%

Poverty rate

19.6%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 93257; this is area context, not an attendance boundary.

Compare nearby

Nearby same-level schools

1 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
Summit Charter AcademyCharter · enrollment unverified7.2K–122.5 mi2,426Compare →

Distance is proximity only; it is not attendance eligibility.

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

Porterville Unified

Schools in district
22
Rank in district
#16 of 21
District spending per student
$18,988NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
32.0%Census SAIPE · 2024

Butterfield Charter is listed in Porterville Unified; a district label does not verify attendance for an address.

About Butterfield Charter

Butterfield Charter is a public school in Porterville, CA, part of Porterville Unified, serving approximately 470 students in grades Kindergarten-12th with a 24.7:1 student-teacher ratio. It holds a MySchoolScout rating of 5.5 out of 10 and ranks #6,341 of 9,539 schools in CA. State assessment records show 7% math proficiency (multi-year average, 2009-2024) and 18% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Butterfield Charter

What grades does Butterfield Charter serve?

Butterfield Charter serves students in grades Kindergarten through 12th.

How many students attend Butterfield Charter?

Butterfield Charter has an enrollment of approximately 470 students.

What is the student-teacher ratio at Butterfield Charter?

The student-teacher ratio at Butterfield Charter is 24.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Butterfield Charter rank in CA?

Butterfield Charter ranks #6,341 of 9,539 schools in CA.

What is Butterfield Charter's MySchoolScout rating?

Butterfield Charter has a current MySchoolScout rating of 5.5 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 Butterfield Charter?

Based on loaded state assessment records, Butterfield Charter has 7% math proficiency (multi-year average, 2009-2024) and 18% reading/ELA proficiency (multi-year average, 2009-2024).

Is Butterfield Charter a charter school?

Yes, Butterfield Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Butterfield Charter a Title I school?

No, Butterfield Charter is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Butterfield Charter?

71.9% of students at Butterfield Charter 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 – 12th
Enrollment
470
Student-Teacher Ratio
24.7:1
Teachers (FTE)
19
Type
regular
Setting
Small Suburb
County
Tulare County
Chronic Absenteeism (SY 2022-23)
56.4%
4-Year Graduation
72.0%
Area population (ZIP 93257)
79,340
Area average commute
24.3 min
Area median age
30.9
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 93257; 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

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