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Average

#1237 of 1,790 private schools in CA

Justin-siena

High School

4026 MAHER ST, Napa, CA 94558

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 23 schools in Napa. Learn more

Enrollment

601

Student-Teacher

13.8:1

Score

5.7

Grades

9th – 12th

Updated 2021-22

How this school compares

In Napa

#5 of 9

public schools

California high schools

#207 of 277

About Justin-siena

Justin-Siena serves 601 students in grades 9 through 12 in Napa, California, offering a solid educational foundation with a student-teacher ratio of 13.8:1 across 44 full-time equivalent teachers. The school earns an 8.0 out of 10 rating from MySchoolScout and ranks in the 36th percentile among California's high schools, positioning it as a respectable choice for families seeking quality secondary education. Located at 4026 Maher Street, Justin-Siena operates as a regular public high school in an economically stable community where the median household income reaches $110,397 and median home values average $816,200.

The surrounding neighborhood reflects an educated population, with 38% of residents holding bachelor's degrees or higher, while maintaining a relatively low poverty rate of 7.6%. The school's manageable size allows for more personalized attention, with fewer than 14 students per teacher on average. This intimate learning environment can foster stronger student-teacher relationships and more individualized support throughout the high school years.

Justin-Siena is situated in Napa's small city setting, providing students with the benefits of a close-knit community atmosphere while remaining connected to the educational and cultural opportunities of California's renowned wine country region.

What Parents Should Know

As a private school, Justin-siena operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Compare to Public Schools

Beta

How Justin-siena compares to 7 public schools serving similar grades in Napa, CA

Student-Teacher Ratio
13.8:1
This School
vs
20.4:1
Public Avg
Avg School Size
601
This School
vs
600
Public Avg
Avg School Scout Rating
5.7
This School
vs
5.7
Public Avg

Student Demographics

White 46.3% vs 0%
Hispanic 20.1% vs 0%
Asian 12.3% vs 0%
Black 3.2% vs 0%
Justin-siena Napa Public Avg

Nearby High Schools

School Rating
Justin-siena (this school) 5.7
Vintage High 6.9
Valley Oak High 5.8
Napa Valley Independent Studies 5.6
Napa High 5.1
New Technology High 5.2
Napa County Juvenile Hall/Court
Napa County Community 5.8

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

What This Rating Measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
B- 5.1 / 10
View breakdown
Student-Teacher Ratio 13.8:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C 3.0 / 10
View breakdown
School Day Length 6.2 hours
Annual Instructional Hours 1,085
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A 8.9 / 10
View breakdown
Diversity Index 70%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
B 5.5 / 10
View breakdown
Enrollment 601
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in CA

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 46.3%
Hispanic 20.1%
Two or More 17.1%
Asian 12.3%
Black 3.2%
Native American 0.8%
Pacific Islander 0.2%

Source: NCES Private School Survey (PSS)

Location

4026 MAHER ST, Napa, CA 94558

Nearby Alternatives

Families considering Justin-siena may also want to explore other high schools in the area. Willow Elementary (rated 7.5/10, 0.7 miles away), which scores notably higher. Another option is Vintage High (rated 6.9/10, 0.9 miles away), which scores notably higher. Additionally, Northwood Elementary (rated 6.5/10, 0.3 miles away), which scores slightly higher. For more schools in Napa, see our Napa schools guide .

Nearby Schools

20 within 1.5 mi
School Distance Rating
Justin-Siena Napa 0.1 mi
Northwood Elementary Napa 0.3 mi 6.5
Hopewell Baptist Christian Academy Napa 0.5 mi
NAPA MONTESSORI CHILDREN'S HOUSE INC. Napa 0.5 mi
ST APOLLINARIS SCHOOL Napa 0.5 mi 5.1
St. Apollinaris Elementary School Napa 0.5 mi
ST JOHN'S LUTHERAN SCHOOL Napa 0.7 mi 5.3
St. John's Lutheran Elementary Napa 0.7 mi
Unidos Middle Napa 0.7 mi 3.9
Redwood Middle Napa 0.6 mi 5.5
Willow Elementary Napa 0.7 mi 7.5
La Sagrada Familia Catholic International Home School Academy Napa 0.8 mi
Kolbe Academy and Trinity Prep Napa 0.9 mi
KOLBE ACADEMY & TRINITY PREP Napa 0.9 mi 5.2
Pueblo Vista Elementary Napa 1.0 mi 5.1
Bel Aire Park Elementary Napa 0.9 mi 3.9
Sunrise Montessori of Napa Valley Napa 1.1 mi
SUNRISE MONTESSORI OF NAPA VALLEY Napa 1.1 mi 4.9
Vintage High Napa 0.9 mi 6.9
West Park Elementary Napa 1.5 mi 3.1

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94558 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$109,444

Median Home Value

$855,600

Median Rent

$2,248/mo

Population

64,552

College Educated

38.3%

Homeownership

67.3%

Avg Commute

23.6 min

Poverty Rate

8.5%

Median Age

44.5

Community Profile

The community surrounding Justin-siena has a median household income of $109,444. It is an area where 38% of adults hold a bachelor's degree or higher. The median home value in the area is $855,600, with a median rent of $2,248/month. The local poverty rate of 8.5% is relatively low. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Alliance Cindy and Bill Simon Technology Academy High Los Angeles, CA 5.7
Escuela Popular/Center for Training and Careers Family Lrng San Jose, CA 5.7
Highlands High North Highlands, CA 5.7
Impact Academy of Arts & Technology Oakland, CA 5.7
Magnolia Science Academy Reseda, CA 5.7
Marshall (Thurgood) High San Francisco, CA 5.7

Frequently Asked Questions

Common questions about Justin-siena

What grades does Justin-siena serve?

Justin-siena serves students in grades 9th through 12th.

How many students attend Justin-siena?

Justin-siena has an enrollment of approximately 601 students.

What is the student-teacher ratio at Justin-siena?

The student-teacher ratio at Justin-siena is 13.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Justin-siena rank in CA?

Justin-siena is ranked #1237 out of 1,790 private schools in CA.

What is Justin-siena's MySchoolScout rating?

Justin-siena has a composite rating of 5.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

Is Justin-siena a private school?

Yes, Justin-siena is a private coeducational school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Justin-siena a religious school?

Justin-siena has a Roman Catholic religious affiliation.

11 schools nearby View map →

Neighborhood Context

City Safety
High (1,705/100K)

FBI UCR 2024. City-level (Napa). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
9th – 12th
Enrollment
601
Gender Split
48% M / 52% F
Student-Teacher Ratio
13.8:1
Teachers (FTE)
44
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
6.2 hours
Days Per Year
175 days
Setting
Small City
County
NAPA
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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