How does Sinaloa Middle compare to other middle schools in Simi Valley?

Sinaloa Middle has a Scope Score of 33.6/100, ranked #1255 among California middle schools. 12% of students exceed standard, with a total of 1,605 students tested across grades and subjects.

What percentage of students exceed standards at Sinaloa Middle?

11.7% of students at Sinaloa Middle exceed the state standard on CAASPP assessments, while 33.8% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Sinaloa Middle improving or declining?

Based on CAASPP data, Sinaloa Middle's proficiency rate decreases by 12.6 percentage points from Grade 6 to grade 8 growth. This pattern in test scores may reflect a variety of factors beyond the school itself.

What is the chronic absenteeism rate at Sinaloa Middle?

25.1% of students at Sinaloa Middle are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in the Scope Score.

Sinaloa Middle

Middle School

Simi Valley Unified Simi ValleyVentura County93065

📍 601 Royal Avenue

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

707 students

Student-Teacher Ratio

23:1

Free/Reduced Lunch

54%

Teachers

31 full-time

Dashboard indicators

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

ELA Year-over-Year

Increased

+5.2 pts DFS change

Math Year-over-Year

Maintained

+0.8 pts DFS change

EL Proficiency (ELPAC)

30.9%

English learners at Level 4 (Well Developed) · 68 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic46.3%

White42.3%

Asian3.3%

Black2.4%

Other5.8%

Performance breakdown

Performance breakdown for Sinaloa Middle
Category	Percentage
Exceeded Standard	11.7%
Met Standard	22.1%
Below Standard	66.2%

Score Factors

Holding Back

▼Exceeded standard: 11.7%

5.6pp below state avg (state avg 17.3%)

30% weight

▼Met or exceeded: 33.8%

5.7pp below state avg (state avg 39.5%)

20% weight

▼Growth (G6→G8): -12.6pp

Scores decline across grades (state avg +0.8pp)

15% weight

▼Chronic absenteeism: 25.1%

5.8pp above state avg (state avg 19.3%)

15% weight

▼Baseline proficiency: 33.8%

Below state baseline (state avg 39.5%)

10% weight

▼Suspension rate: 8.0%

3.9pp above state avg (state avg 4.1%)

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 6 dimensions. See full methodology →

What other rankings don't show you

Most rating sites report "34% proficient" for Sinaloa Middle and stop there. Here's what that number hides:

11.7% of students exceeded standard while 22.1% met it. That exceeded rate is 5.6 points below the state average of 17.3%. That's 7.5 points below the Simi Valley Unified district average of 19.2%. The 1 nearby schools within ~3 miles average 17.5% exceeded — 5.8 points higher. The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

Proficiency drops by 12.6 percentage points from Grade 6 to grade 8 growth — a signal that the school may not be sustaining early gains.

California's Dashboard shows ELA performance increased and Math maintained year-over-year. 30.9% of English learners reached Level 4 (Well Developed) on ELPAC.

Chronic absenteeism is 25.1%, above the state average of 19.3%.

Why the exceeded vs. met split matters →

A low score doesn't tell the whole story. Read: Your School Scored Low — Here's What That Actually Means

Key metrics

% Exceeded Standard

11.7%

Students scoring above proficient

% Met or Above

33.8%

Students meeting standard

Growth (G6→G8)

-12.6pp

Change in proficiency rate

Chronic Absenteeism

25.1%

Students missing 10%+ of days

Suspension Rate

8.0%

Students suspended at least once

Total Tested

1,605

Across all grades & subjects

Grade trajectory

How proficiency compares across grade levels this year (different students, same test year)

ELA Trajectory

G6 → G7 → G8

Math Trajectory

G6 → G7 → G8

ELA scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
6th	272	12.9%	30.5%	33.8%	22.8%	43.4%
7th	276	11.6%	30.8%	22.1%	35.5%	42.4%
8th	254	11.8%	24.8%	34.3%	29.1%	36.6%

Math scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
6th	273	17.6%	20.5%	24.9%	37.0%	38.1%
7th	276	10.1%	12.7%	30.1%	47.1%	22.8%
8th	254	6.3%	13.4%	26.0%	54.3%	19.7%

K-12 Feeder PathBoundary data

Elementary

Wood Ranch Elementary

Also serves area

Hollow Hills Elementary

74.4# in state

Atherwood Elementary

56.2# in state

▼

Middle

Sinaloa Middle

33.6# in state

This school

▼

High School

Royal High

69.3# in state

Feeder patterns derived from 2015-16 NCES attendance boundary data. Boundaries may have changed. Contact your school district for current information.