Limited Profile
Not enough data to generate a rating
St. Didacus
Elementary School
14325 Astoria Street, Sylmar, CA 91342
Enrollment
272
Student-Teacher
23.7:1
Grades
Kindergarten – 8th
Enrollment
272
Student-Teacher
23.7:1
Grades
Kindergarten – 8th
Updated
2024-25
Updated 2024-25
How this school compares
Academic performance
7.0 / 10
Strong
About St. Didacus
St. Didacus is an private elementary school in Sylmar, CA 91342. The school serves approximately 272 students in grades Kindergarten – 8th with a student-teacher ratio of 23.7:1.
Located in a neighborhood with a median household income of $95,480, where 20% of adults hold a bachelor's degree or higher.
What Parents Should Know
The student-teacher ratio at St. Didacus is 23.7:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
As a private school, St. Didacus 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
BetaHow St. Didacus compares to 9 public schools serving similar grades in Sylmar, CA
Nearby Elementary Schools
| School | Rating |
|---|---|
| St. Didacus (this school) | — |
| Dyer Street Elementary | 6.5 |
| Sylmar Elementary | 8.9 |
| Olive Vista Middle | 7.4 |
| Sylmar Leadership Academy | 6.5 |
| El Dorado Avenue Elementary | 8.4 |
| Osceola Street Elementary | 8.5 |
| Herrick Avenue Elementary | 7.3 |
| Hubbard Street Elementary | 8.8 |
| Harding Street Elementary | 8.3 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
School Profile
Limited Data- Grades
- Kindergarten – 8th
- Enrollment
- 272 students
- Type
- Private
- Student-Teacher Ratio
- 23.7:1
- Address
- 14325 Astoria Street, Sylmar, CA 91342
- Phone
- (818) 367-5886
- Data Year
- SY 2024-25
Why doesn't this school have a score?
We don't have enough verified data to rate this school fairly. Private schools in CA aren't required to report standardized test scores to the state, which limits the data available for our rating model.
Our rating model requires at least 2 of 3 data components (academics, student progress, college readiness, and resources) to generate a meaningful score. Schools below this threshold receive a Limited Profile to avoid misleading ratings.
Test Scores
Test score data not yet available for this school.
Location
14325 Astoria Street, Sylmar, CA 91342
Nearby Alternatives
Families considering St. Didacus may also want to explore other elementary schools in the area. Sylmar Elementary (rated 8.9/10, 0.4 miles away). Another option is PUC Community Charter Elementary (rated 8.7/10, 0.4 miles away, in nearby Burbank). Additionally, Osceola Street Elementary (rated 8.5/10, 1.2 miles away). For more schools in Sylmar, see our Sylmar schools guide .
Nearby Schools
20 within 1.2 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 91342 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$95,480
Median Home Value
$641,100
Median Rent
$1,965/mo
Population
93,513
College Educated
20.1%
Homeownership
67.7%
Avg Commute
31.6 min
Poverty Rate
12.7%
Median Age
37.4
Community Profile
The community surrounding St. Didacus has a median household income of $95,480. It is a community where 20% of adults hold a bachelor's degree or higher. The median home value in the area is $641,100, with a median rent of $1,965/month. The area has a poverty rate of 12.7%. The average commute for residents is 32 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 |
|---|---|
| A Bright Beginning Inglewood, CA | — |
| Abiding Savior Lutheran School Lake Forest, CA | — |
| Abraham Joshua Heschel Day School Northridge, CA | — |
| All Hallows Academy La Jolla, CA | — |
| All Saints' Episcopal Day School Carmel, CA | — |
| All Souls School Alhambra, CA | — |
Frequently Asked Questions
Common questions about St. Didacus
What grades does St. Didacus serve?
St. Didacus serves students in grades Kindergarten through 8th.
How many students attend St. Didacus?
St. Didacus has an enrollment of approximately 272 students.
What is the student-teacher ratio at St. Didacus?
The student-teacher ratio at St. Didacus is 23.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
Is St. Didacus a private school?
Yes, St. Didacus is a private coeducational school. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Explore More Schools
Quick Facts NCES PSS (SY 2024-25)
- Grades
- Kindergarten – 8th
- Enrollment
- 272
- Student-Teacher Ratio
- 23.7:1
- Teachers (FTE)
- 12
- Type
- private
- Coed Status
- coed
- County
- Los Angeles
- Phone
- (818) 367-5886
- Data Year
- 2025–2026
Resources & Links
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 methodologyRelated reading
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