Very Good
#209 of 992 private schools in NY
Top 21% of private schools
Portledge School
School · Locust Valley, NY
A private school in Locust Valley, NY serving grades Pre-K – 12th.
355 DUCK POND RD, Locust Valley, NY 11560
- 7.8:1 student-teacher ratio
Academics
PreliminaryWhat 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 NY.
Data not available
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 NY
Test scores
Most recent published year. School vs. NY average.
Test score data not yet available for this school.
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 rateThe neighborhood
Where Portledge School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the New York map →
Getting around & local context
- Walk 5Car-Dependent
- Bike 23Somewhat Bikeable
- County Safety: Elevated982/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$159,545
Median home value
$937,500
Median rent
$2,467/mo
College educated
60%
Homeownership
82.5%
Poverty rate
4.9%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 11560; this is area context, not an attendance boundary.
Programs & students
Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)
Source: NCES Private School Universe Survey (PSS)
Compare nearby
Nearby same-level schools
0 from a 5-mile search
No verified same-level alternatives
The available nearby set has no same-level school with a verified grade span.
Portledge School is listed in Locust Valley, NY; verify the current enrollment path directly.
About Portledge School
Portledge School is a private school in Locust Valley, NY, serving approximately 510 students in grades Pre-K-12th with a 7.8:1 student-teacher ratio. It holds a MySchoolScout rating of 7.2 out of 10 and ranks #209 of 992 private schools in NY.
Frequently asked questions
Common questions about Portledge School
What grades does Portledge School serve?
Portledge School serves students in grades Pre-K through 12th.
How many students attend Portledge School?
Portledge School has an enrollment of approximately 510 students.
What is the student-teacher ratio at Portledge School?
The student-teacher ratio at Portledge School is 7.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Portledge School rank in NY?
Portledge School ranks #209 of 992 private schools in NY.
What is Portledge School's MySchoolScout rating?
Portledge School has a current MySchoolScout rating of 7.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Portledge School a private school?
Yes, Portledge School is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is Portledge School a religious school?
No, Portledge School is a nonsectarian (non-religious) private school.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- Pre-K – 12th
- Enrollment
- 510
- Gender Split
- 54% M / 46% F
- Student-Teacher Ratio
- 7.8:1
- Teachers (FTE)
- 65
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 7.2 hours
- Days Per Year
- 180 days
- Setting
- Fringe Rural
- County
- Nassau County
- Phone
- (516) 750-3223
- Area population (ZIP 11560)
- 6,951
- Area average commute
- 37.7 min
- Area median age
- 48.1
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 Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
- Vintage not available. Do not use this measure alone.
- MySchoolScout rating and rank
- MySchoolScout ranking model · 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 a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource 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 11560; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22
Related reading
- Best Public Schools in New York 2026: Top Districts from NYC to the Suburbsbest schools
- Best Schools in New York, NY — 2026 Rankingsbest schools
- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Student-Teacher Ratio by State: Complete 2026 Rankingsdata insights
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.