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allk12 · Rankings · Fastest declining · New York · Suffolk County · High schools

The fastest-declining public high schools by enrollment in Suffolk County, New York

45 public high schools in Suffolk County, New York appear in this ranking of the fastest-declining public high schools by enrollment, ranked by the steepest enrollment decline between the 2017-18 and 2024-25 school years. SMITHTOWN HIGH SCHOOL-WEST leads the list at -30.3%, against a median of -11.8% across the ranked schools.

Use the search box to find a specific school within this ranking, sort by any column, or export the full list. Built from NCES and state data for 2024-25.

Schools ranked
45
Suffolk County, New York
Best Enrollment change
-30.3%
Median Enrollment change
-11.8%
FASTEST DECLINING · SUFFOLK COUNTY, NEW YORK
#SchoolCityDistrict2017-182024-25% Change
1SMITHTOWN HIGH SCHOOL-WESTSMITHTOWN, NYSMITHTOWN CENTRAL SCHOOL DISTRICT1,6621,158-30.3%
2KINGS PARK HIGH SCHOOLKINGS PARK, NYKINGS PARK CENTRAL SCHOOL DISTRICT1,131823-27.2%
3NORTHPORT SENIOR HIGH SCHOOLNORTHPORT, NYNORTHPORT-EAST NORTHPORT UNION FREE SCHOOL DISTRICT1,9771,476-25.3%
4COLD SPRING HARBOR HIGH SCHOOLCOLD SPRING HARBOR, NYCOLD SPRING HARBOR CENTRAL SCHOOL DISTRICT944719-23.8%
5COMMACK HIGH SCHOOLCOMMACK, NYCOMMACK UNION FREE SCHOOL DISTRICT2,2441,728-23.0%
6HALF HOLLOW HILLS HIGH SCHOOL WESTDIX HILLS, NYHALF HOLLOW HILLS CENTRAL SCHOOL DISTRICT1,3251,028-22.4%
7BAYPORT-BLUE POINT HIGH SCHOOLBAYPORT, NYBAYPORT-BLUE POINT UNION FREE SCHOOL DISTRICT743579-22.1%
8SHOREHAM-WADING RIVER HIGH SCHOOLSHOREHAM, NYSHOREHAM-WADING RIVER CENTRAL SCHOOL DISTRICT795629-20.9%
9EASTPORT-SOUTH MANOR JUNIOR SENIOR HIGH SCHOOLMANORVILLE, NYEASTPORT-SOUTH MANOR CSD1,8191,469-19.2%
10WEST ISLIP SENIOR HIGH SCHOOLWEST ISLIP, NYWEST ISLIP UNION FREE SCHOOL DISTRICT1,4381,163-19.1%
11HALF HOLLOW HILLS HIGH SCHOOL EASTDIX HILLS, NYHALF HOLLOW HILLS CENTRAL SCHOOL DISTRICT1,7251,407-18.4%
12EARL L VANDERMEULEN HIGH SCHOOLPORT JEFFERSON, NYPORT JEFFERSON UNION FREE SCHOOL DISTRICT383313-18.3%
13WARD MELVILLE SENIOR HIGH SCHOOLEAST SETAUKET, NYTHREE VILLAGE CENTRAL SCHOOL DISTRICT1,7591,442-18.0%
14MATTITUCK JUNIOR-SENIOR HIGH SCHOOLMATTITUCK, NYMATTITUCK-CUTCHOGUE UNION FREE SCHOOL DISTRICT637524-17.7%
15SAYVILLE HIGH SCHOOLWEST SAYVILLE, NYSAYVILLE UNION FREE SCHOOL DISTRICT987814-17.5%
16SOUTHOLD JUNIOR-SENIOR HIGH SCHOOLSOUTHOLD, NYSOUTHOLD UNION FREE SCHOOL DISTRICT401333-17.0%
17HARBORFIELDS HIGH SCHOOLGREENLAWN, NYHARBORFIELDS CENTRAL SCHOOL DISTRICT1,101923-16.2%
18BABYLON JUNIOR-SENIOR HIGH SCHOOLBABYLON, NYBABYLON UNION FREE SCHOOL DISTRICT786662-15.8%
19ROCKY POINT HIGH SCHOOLROCKY POINT, NYROCKY POINT UNION FREE SCHOOL DISTRICT1,053894-15.1%
20HAUPPAUGE HIGH SCHOOLHAUPPAUGE, NYHAUPPAUGE UNION FREE SCHOOL DISTRICT1,2091,038-14.1%
21SACHEM HIGH SCHOOL EASTFARMINGVILLE, NYSACHEM CENTRAL SCHOOL DISTRICT2,2961,984-13.6%
22CENTER MORICHES HIGH SCHOOLCENTER MORICHES, NYCENTER MORICHES UNION FREE SCHOOL DISTRICT581511-12.0%
23MILLER PLACE HIGH SCHOOLMILLER PLACE, NYMILLER PLACE UNION FREE SCHOOL DISTRICT866764-11.8%
24SMITHTOWN HIGH SCHOOL EASTSAINT JAMES, NYSMITHTOWN CENTRAL SCHOOL DISTRICT1,5751,403-10.9%
25SOUTHAMPTON HIGH SCHOOLSOUTHAMPTON, NYSOUTHAMPTON UNION FREE SCHOOL DISTRICT653582-10.9%
26ISLIP HIGH SCHOOLISLIP, NYISLIP UNION FREE SCHOOL DISTRICT993890-10.4%
27CONNETQUOT HIGH SCHOOLBOHEMIA, NYCONNETQUOT CENTRAL SCHOOL DISTRICT1,9781,774-10.3%
28ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOLMOUNT SINAI, NYMOUNT SINAI UNION FREE SCHOOL DISTRICT782710-9.2%
29COMSEWOGUE HIGH SCHOOLPORT JEFFERSON STA, NYBROOKHAVEN-COMSEWOGUE UNION FREE SCHOOL DISTRICT1,2741,160-8.9%
30SACHEM HIGH SCHOOL NORTHLAKE RONKONKOMA, NYSACHEM CENTRAL SCHOOL DISTRICT2,2052,008-8.9%
31HUNTINGTON HIGH SCHOOLHUNTINGTON, NYHUNTINGTON UNION FREE SCHOOL DISTRICT1,4861,363-8.3%
32EAST ISLIP HIGH SCHOOLISLIP TERRACE, NYEAST ISLIP UNION FREE SCHOOL DISTRICT1,2661,170-7.6%
33PIERSON MIDDLE/HIGH SCHOOLSAG HARBOR, NYSAG HARBOR UNION FREE SCHOOL DISTRICT542501-7.6%
34LINDENHURST SENIOR HIGH SCHOOLLINDENHURST, NYLINDENHURST UNION FREE SCHOOL DISTRICT2,0071,868-6.9%
35CENTEREACH HIGH SCHOOLCENTEREACH, NYMIDDLE COUNTRY CENTRAL SCHOOL DISTRICT1,5741,467-6.8%
36ELWOOD/JOHN GLENN HIGH SCHOOLELWOOD, NYELWOOD UNION FREE SCHOOL DISTRICT722677-6.2%
37BAY SHORE SENIOR HIGH SCHOOLBAY SHORE, NYBAY SHORE UNION FREE SCHOOL DISTRICT1,9621,862-5.1%
38DEER PARK HIGH SCHOOLDEER PARK, NYDEER PARK UNION FREE SCHOOL DISTRICT1,3771,326-3.7%
39BELLPORT SENIOR HIGH SCHOOLBROOKHAVEN, NYSOUTH COUNTRY CENTRAL SCHOOL DISTRICT1,3741,340-2.5%
40WALTER G O'CONNELL COPIAGUE HIGH SCHOOLCOPIAGUE, NYCOPIAGUE UNION FREE SCHOOL DISTRICT1,6081,567-2.5%
41WALT WHITMAN HIGH SCHOOLHUNTINGTON STATION, NYSOUTH HUNTINGTON UNION FREE SCHOOL DISTRICT1,9831,939-2.2%
42WEST BABYLON SENIOR HIGH SCHOOLWEST BABYLON, NYWEST BABYLON UNION FREE SCHOOL DISTRICT1,2461,228-1.4%
43GREENPORT HIGH SCHOOLGREENPORT, NYGREENPORT UNION FREE SCHOOL DISTRICT361358-0.8%
44WESTHAMPTON BEACH SENIOR HIGH SCHOOLWESTHAMPTON BEACH, NYWESTHAMPTON BEACH UNION FREE SCHOOL DISTRICT978970-0.8%
45NEWFIELD HIGH SCHOOLSELDEN, NYMIDDLE COUNTRY CENTRAL SCHOOL DISTRICT1,5561,553-0.2%
Page 1 of 1 · top 45 of 45 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.