schoolsbycounty

Suffolk County Schools & Education

Suffolk County, New York

NCES 2022-23 public school data and FY 2022 school-finance data

School Score

73/100

Percentile-style score

Score Band

Higher Signal

Graduation Rate

89.4%

National avg 87.5%

Education Statistics

Graduation Rate

89.4%

National avg 87.5%

State avg 85.3%

Per-Pupil Spending

$18,493

National avg $13,239

State avg $14,719

School Score

73/100

Percentile-style score

State avg 63/100

State Score Position

#9

of 62 counties by score

Education Data Brief: Suffolk County

Measured School Summary

Suffolk County shows higher measured school signals with a score of 73/100, though its graduation rate of 89.4% is a note of consideration.

Funding Context

Suffolk County invests $18,493 per student annually, reflecting robust funding that typically supports smaller class sizes, competitive teacher salaries, and enriched programming.

Neighbor Context

Its school score is 16% above the New York average, and its graduation rate exceeds the state average by 4.1 percentage points, while per-pupil spending is 26% higher than the state norm.

School Data Brief

How to read Suffolk County before comparing districts

County-level education data is best used as a screening layer. It summarizes the local school environment, then points you toward the district and school records that matter for local review.

Local context that changes the interpretation

341 public schools and 73 districts are represented below. Use those school and district records to confirm whether the county-level context fits the neighborhoods you are actually considering.

Overall screen

73/100

Higher measured signal. Ranks #9 of 62 New York counties with school score data.

Completion

89.4%

4.1 pts above the state average

Funding context

$18,493

$3,774 above the state average

School coverage

341

73 districts represented in the county school list.

Start with measured county context

This county screens well on the combined school metrics available here. Compare the score, graduation rate, and spending together rather than treating any single metric as final.

Check the local school mix

Suffolk County has 341 public schools across 73 districts, so school-level fit can vary inside the county.

Verify local rules

Use this page as county-level context, then confirm attendance zones, transportation, special programs, and current school boundaries with local districts.

View Public SchoolsCompare Counties
Parent decision brief

What Suffolk County school data means before you move

County averages are useful for screening, but parents choose addresses, grade pathways, and district rules. This brief turns the public data into the checks that matter before you sign a lease or mortgage.

Large multi-district county

Suffolk County has many school records across many districts. County averages are only the opening screen; neighborhood-level assignment and grade-band fit matter more here.

State position

#9

of 62 New York counties with school score data. The county score is 10 points above the state average.

Data confidence

Usable

3 of 5 county signals are present, and 100% of listed schools report enrollment. Compare schools, then verify missing fields locally.

K-12 continuity check

These are the largest visible district slices in the county data. They show whether elementary, middle, and high school records appear together or whether a family needs to investigate transition points.

BRENTWOOD UNION FREE SCHOOL DISTRICT

Elementary to high school visible

17,826 students

Elementary 11Middle 4High 1Other 1

17 listed schools in this county slice.

SACHEM CENTRAL SCHOOL DISTRICT

Elementary to high school visible

11,727 students

Elementary 10Middle 3High 2Other 0

15 listed schools in this county slice.

MIDDLE COUNTRY CENTRAL SCHOOL DISTRICT

Elementary to high school visible

9,404 students

Elementary 10Middle 2High 2Other 0

14 listed schools in this county slice.

WILLIAM FLOYD UNION FREE SCHOOL DISTRICT

Elementary to high school visible

8,963 students

Elementary 6Middle 2High 1Other 0

9 listed schools in this county slice.

District reality check

BRENTWOOD UNION FREE SCHOOL DISTRICT is the largest listed district slice, with 17 schools. County pages do not prove address assignment, so verify boundaries with local district tools.

What the data cannot tell you

NCES records do not confirm current attendance zones, private-school options, transfer approvals, program capacity, transportation, or whether a listed school is available to a specific address.

Questions to ask before choosing an address

Which district actually serves the addresses we are considering in Suffolk County?

Do the neighborhoods we like fall inside the same district, or are we comparing different Suffolk County district systems?

What changes at the elementary-to-middle and middle-to-high transitions in the district pathway we would likely use?

Which charter, magnet, or virtual options require a lottery, application window, separate transportation plan, or address eligibility check?

Are the largest listed schools the ones our address can actually attend, or are they only county-level context?

Data Story

Suffolk County Operates Extensive Suburban Network for 223,235 Students

Education data brief for Suffolk County, New York.

By Evan Brooks, Data EditorPublished Reviewed by Evan Brooks, Data Editor
Lead metric:District structure

Suffolk County’s educational landscape is defined by its massive scale and suburban structure, featuring 73 school districts and 341 public schools. The total enrollment of 223,235 students is predominantly served in suburban locales, which account for 316 of the county's schools. The Brentwood Union Free School District is the largest in the county, enrolling 17,826 students across 17 schools. Performance metrics are notably high, with a graduation rate of 89.4%, surpassing both the state average of 85.3% and the national average of 87.0%. The composite school score of 73.2 is also significantly higher than the New York average of 63.4. Funding levels reflect this high-expenditure region, with per-pupil spending at $18,493, which is $3,774 higher than the state average and more than $5,400 above the national average. Despite the large number of traditional public schools, only two charter schools operate in the county. See the NCES Common Core of Data for detailed district-level financial reports.

Sources

School Overview

Total Schools

341

in Suffolk County

Reported Enrollment

223,235

341 schools reporting

School Districts

73

districts

Charter Schools

2

1% of total

School Level Breakdown

Elementary207
Middle67
High59
Other8

73 School Districts in Suffolk County

BRENTWOOD UNION FREE SCHOOL DISTRICT

Guide
17 schools
17,826 students
Open district guide

SACHEM CENTRAL SCHOOL DISTRICT

Guide
15 schools
11,727 students
Open district guide

MIDDLE COUNTRY CENTRAL SCHOOL DISTRICT

Guide
14 schools
9,404 students
Open district guide

WILLIAM FLOYD UNION FREE SCHOOL DISTRICT

Guide
9 schools
8,963 students
Open district guide

LONGWOOD CENTRAL SCHOOL DISTRICT

Guide
7 schools
8,725 students
Open district guide

SMITHTOWN CENTRAL SCHOOL DISTRICT

Guide
12 schools
7,808 students
Open district guide

CENTRAL ISLIP UNION FREE SCHOOL DISTRICT

Guide
8 schools
7,734 students
Open district guide

PATCHOGUE-MEDFORD UNION FREE SCHOOL DISTRICT

Guide
11 schools
7,353 students
Open district guide

HALF HOLLOW HILLS CENTRAL SCHOOL DISTRICT

Guide
9 schools
7,222 students
Open district guide

SOUTH HUNTINGTON UNION FREE SCHOOL DISTRICT

Guide
7 schools
5,740 students
Open district guide

341 Public Schools in Suffolk County

Sorted by reported enrollment. Dedicated profile pages are available for 58 high-enrollment schools; every NCES public school remains listed here.

NCES 2022-23 public school data and FY 2022 school-finance data

Level

Showing 20 of 341 matching schools

BRENTWOOD HIGH SCHOOL

BRENTWOOD UNION FREE SCHOOL DISTRICT

BRENTWOOD, 11717 / Suburb: Large

Profile9–12High4,641 students

WILLIAM FLOYD HIGH SCHOOL

WILLIAM FLOYD UNION FREE SCHOOL DISTRICT

MASTIC BEACH, 11951 / Suburb: Large

Profile9–12High3,013 students

LONGWOOD HIGH SCHOOL

LONGWOOD CENTRAL SCHOOL DISTRICT

MIDDLE ISLAND, 11953 / Rural: Fringe

Profile9–12High2,977 students

CENTRAL ISLIP SENIOR HIGH SCHOOL

CENTRAL ISLIP UNION FREE SCHOOL DISTRICT

CENTRAL ISLIP, 11722 / Suburb: Large

Profile9–12High2,576 students

PATCHOGUE-MEDFORD HIGH SCHOOL

PATCHOGUE-MEDFORD UNION FREE SCHOOL DISTRICT

MEDFORD, 11763 / Suburb: Large

Profile9–12High2,443 students

SACHEM HIGH SCHOOL EAST

SACHEM CENTRAL SCHOOL DISTRICT

FARMINGVILLE, 11738 / Suburb: Large

Profile9–12High2,082 students

RIVERHEAD SENIOR HIGH SCHOOL

RIVERHEAD CENTRAL SCHOOL DISTRICT

RIVERHEAD, 11901 / Suburb: Large

Profile9–12High2,001 students

WALT WHITMAN HIGH SCHOOL

SOUTH HUNTINGTON UNION FREE SCHOOL DISTRICT

HUNTINGTON STATION, 11746 / Suburb: Large

Profile9–12High1,991 students

SACHEM HIGH SCHOOL NORTH

SACHEM CENTRAL SCHOOL DISTRICT

LAKE RONKONKOMA, 11779 / Suburb: Large

Profile9–12High1,923 students

BAY SHORE SENIOR HIGH SCHOOL

BAY SHORE UNION FREE SCHOOL DISTRICT

BAY SHORE, 11706 / Suburb: Large

Profile9–12High1,910 students

LINDENHURST SENIOR HIGH SCHOOL

LINDENHURST UNION FREE SCHOOL DISTRICT

LINDENHURST, 11757 / Suburb: Large

Profile9–12High1,897 students

COMMACK HIGH SCHOOL

COMMACK UNION FREE SCHOOL DISTRICT

COMMACK, 11725 / Suburb: Large

Profile9–12High1,861 students

CONNETQUOT HIGH SCHOOL

CONNETQUOT CENTRAL SCHOOL DISTRICT

BOHEMIA, 11716 / Suburb: Large

Profile9–12High1,757 students

EASTERN SUFFOLK BOCES

EASTERN SUFFOLK BOCES

PATCHOGUE, 11772 / Suburb: Large

ProfileKG–12Special Education1,721 students

NORTHPORT SENIOR HIGH SCHOOL

NORTHPORT-EAST NORTHPORT UNION FREE SCHOOL DISTRICT

NORTHPORT, 11768 / Suburb: Large

Profile9–12High1,645 students

NEWFIELD HIGH SCHOOL

MIDDLE COUNTRY CENTRAL SCHOOL DISTRICT

SELDEN, 11784 / Suburb: Large

Profile9–12High1,559 students

EASTPORT-SOUTH MANOR JUNIOR SENIOR HIGH SCHOOL

EASTPORT-SOUTH MANOR CSD

MANORVILLE, 11949 / Suburb: Large

Profile7–12High1,530 students

WALTER G O'CONNELL COPIAGUE HIGH SCHOOL

COPIAGUE UNION FREE SCHOOL DISTRICT

COPIAGUE, 11726 / Suburb: Large

Profile9–12High1,524 students

WARD MELVILLE SENIOR HIGH SCHOOL

THREE VILLAGE CENTRAL SCHOOL DISTRICT

EAST SETAUKET, 11733 / Suburb: Large

Profile9–12High1,507 students

NORTH BABYLON HIGH SCHOOL

NORTH BABYLON UNION FREE SCHOOL DISTRICT

NORTH BABYLON, 11703 / Suburb: Large

Profile9–12High1,506 students

Additional School Profiles

Dedicated profile pages are generated for a subset of public schools with broad enrollment coverage. All other schools remain listed in the county table.

38 more profiles

Education Funding Detail

Annual Per-Pupil Expenditure

$18,493

State avg $14,719

Compare Nearby Counties

Review Suffolk County against other counties using the same NCES-backed metrics.

Open Compare

Browse Public Schools

See school-level enrollment, grade ranges, school type, and district affiliation.

View Schools

Frequently Asked Questions

Which New York counties have the highest graduation rates?
Putnam County (93.4%), Genesee County (92.5%), and Schuyler County (91.8%) currently lead New York among counties with available NCES four-year adjusted cohort graduation-rate data. This answer is generated from the same dataset used in the county table and can change when federal data refreshes.
What is per-pupil spending like in New York?
Across New York counties with available NCES district-finance data, average per-pupil spending is $14,719. The highest current county values are Hamilton County ($26,327), New York County ($21,940), and Putnam County ($19,993). Compare counties in the table before treating the statewide average as representative of a local district.
How should I read the school score in Suffolk County?
Suffolk County has a school score of 73/100, which is a higher measured signal in this county-level index. This score is calculated from available NCES graduation-rate and school-finance data, with school-level records shown separately below.
What is the graduation rate in Suffolk County?
The high school graduation rate in Suffolk County is 89.4%, which is above the national average of 87.5%. This figure is based on NCES district-level data for public high schools in the county.
How much does Suffolk County spend per student?
Suffolk County spends $18,493 per pupil annually on public education, based on NCES district finance data. Current operating spending per fall enrollment, including instruction, support services, administration, transportation, and operations. It excludes capital outlays and debt service in the SchoolsByCounty methodology.

Counties with Similar School Profile

Westchester County

New York

+0 pts

73/100

School score

Wyoming County

New York

-1 pts

72/100

School score

Rensselaer County

New York

-1 pts

72/100

School score

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Sources

Education data sourced from the National Center for Education Statistics (NCES) Common Core of Data and School District Finance Survey. School scores are derived composite metrics based on available NCES graduation-rate and school-finance signals.

Data is informational only. Coverage varies by county and reporting year. Not for use as the sole basis for educational decisions.

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