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Best Public Schools in Central Islip, NY

At a glance

Schools

7,220

Students

Districts

Top rankedCentral Islip Senior High School768^th of 1,234 New York high schools

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Biggest riser

Cordello Avenue Elementary School up 214 spots statewide this year

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Smallest classes

Cordello Avenue Elementary School 11 students per teacher

SchoolDigger ratings

2★

1★

0★

1 school without a SchoolDigger rating (too few tested students)

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Summary:

The Central Islip, New York school district consists of 7 schools, including 5 elementary schools, 1 middle school, and 1 high school. The district as a whole is ranked 804 out of 874 school districts in New York and is rated 0 stars out of 5 by SchoolDigger, indicating significant challenges in providing quality education to its students.

Within the district, a few schools stand out. Francis J O'Neill School is an elementary school with the highest performance on state assessments across multiple grade levels and subjects compared to other schools in the district. For example, in 2024-2025, over 50% of 4th graders were proficient or better in both English Language Arts and Math. In contrast, Central Islip Senior High School had significantly lower proficiency rates on the Algebra I Regents exam, with only 26.73% of students scoring proficient or better compared to the state average of 56.07%. The middle school, Ralph Reed School, stood out for its high proficiency rates on Regents exams, with over 97% of students scoring proficient or better on the Algebra I and Earth Science Regents.

The data reveals significant disparities in academic performance and resource allocation within the Central Islip Union Free School District. Graduation rates, dropout rates, and chronic absenteeism at the high school level are concerning, and per-student spending varies widely across the schools. Addressing these inequities should be a priority to ensure all students in Central Islip have access to a high-quality education.

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				Regents Chemistry (2025)	Regents Common Core Algebra II (2025)	Regents Common Core English Language Arts (2025)	Regents Common Core Geometry (2025)	Regents Earth Science (2025)	Regents Global History and Geography (2025)	Regents Living Environment (2025)	Regents Physics (2025)	Regents U.S. History and Government (2025)	Regents Algebra I (2025)	Regents Geometry (2025)	NY State Assessments English Language Arts (2025)						NY State Assessments Math (2025)						NY State Assessments Science (2025)		% Completely Immunized (2020)	% Polio (2020)	% Measles (2020)	% Mumps (2020)	% Rubella (2020)	% Diphtheria (2020)	% Hepatitis B (2020)	% Varicella (2020)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	Regents Chemistry End of Course	Regents Common Core Algebra II End of Course	Regents Common Core English Language Arts End of Course	Regents Common Core Geometry End of Course	Regents Earth Science End of Course	Regents Global History and Geography End of Course	Regents Living Environment End of Course	Regents Physics End of Course	Regents U.S. History and Government End of Course	Regents Algebra I End of Course	Regents Geometry End of Course	NY State Assessments English Language Arts 3rd Grade	NY State Assessments English Language Arts 4th Grade	NY State Assessments English Language Arts 5th Grade	NY State Assessments English Language Arts 6th Grade	NY State Assessments English Language Arts 7th Grade	NY State Assessments English Language Arts 8th Grade	NY State Assessments Math 3rd Grade	NY State Assessments Math 4th Grade	NY State Assessments Math 5th Grade	NY State Assessments Math 6th Grade	NY State Assessments Math 7th Grade	NY State Assessments Math 8th Grade	NY State Assessments Science 5th Grade	NY State Assessments Science 8th Grade	% Completely Immunized All Grades	% Polio All Grades	% Measles All Grades	% Mumps All Grades	% Rubella All Grades	% Diphtheria All Grades	% Hepatitis B All Grades	% Varicella All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Central Islip Senior High School	Public	9-12	85 Wheeler Rd	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	No	(631) 348-5079	2,615	155	16.8	55.6%	41 (1.6%)	385 (14.7%)	2,124 (81.2%)	37 (1.4%)	4 (0.2%)	2 (0.1%)	22 (0.8%)	38.4	768^th of 1234 public high schools	37.8%		36	793^rd of 1242 public high schools	36.2%	25	51.7	79.0	60.1	10.7	69.8	76.8	50.5	50.0	78.9	26.7	44.1															97.1	97.9	99.7	99.7	99.7	97.8	98.6	99.5	$19,605	$1,172	$18,433
Charles A Mulligan Elementary School	Public	K-6	1 Broadway	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-5041	997	67	14.8	71.4%	19 (1.9%)	90 (9.0%)	828 (83.0%)	20 (2.0%)	1 (0.1%)	1 (0.1%)	38 (3.8%)	18.6	2116^th of 2445 public elementary schools	13.5%		15.4	2210^th of 2445 public elementary schools	9.6%	94												31.9	27.5	35.9	34.9			39.6	29.1	29.8	45.7			28.3		95.5	99.0	99.9	99.9	99.9	99.1	99.4	98.4	$19,430	$501	$18,929
Francis J O'Neill School	Public	K-6	44 E Cherry St	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-5060	600	44	13.7	75.2%	14 (2.3%)	114 (19.0%)	443 (73.8%)	6 (1.0%)	2 (0.3%)	1 (0.2%)	20 (3.3%)	29.7	1782^nd of 2445 public elementary schools	27.1%		28.7	1783^rd of 2445 public elementary schools	27.1%	1												37.4	53.1	40.0	41.5			48.0	52.0	37.2	38.0			23.5		99.3	99.8	100.0	100.0	100.0	99.8	100.0	100.0	$28,719	$579	$28,140
Marguerite L Mulvey School	Public	K-6	44 E Cherry St	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-5059	567	45	12.6	62.1%	5 (0.9%)	55 (9.7%)	480 (84.7%)	10 (1.8%)	0 (0.0%)	1 (0.2%)	16 (2.8%)	20.6	2058^th of 2445 public elementary schools	15.8%		29.7	1755^th of 2445 public elementary schools	28.2%	303												20.0	47.0	48.8	29.7			23.7	49.2	37.8	29.7			27.0		95.8	99.3	99.8	99.8	99.8	96.9	99.2	98.0	$25,936	$457	$25,479
Ralph Reed School	Public	7-8	200 Half Mile Rd	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-5066	1,192	86	13.8	61.9%	30 (2.5%)	184 (15.4%)	946 (79.4%)	10 (0.8%)	3 (0.3%)	1 (0.1%)	18 (1.5%)	12.3	1403^rd of 1500 public middle schools	6.5%		16	1364^th of 1504 public middle schools	9.3%	39					97.2					100.0						23.3	25.0					28.6	22.9		24.5	98.2	98.9	100.0	100.0	100.0	99.2	100.0	99.8	$21,648	$337	$21,310
Anthony Alfano Elementary School	Public	PK, KG-6	50 Wheeler Rd	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-5139	491	41	12.0	73.3%	11 (2.2%)	52 (10.6%)	410 (83.5%)	4 (0.8%)	1 (0.2%)	0 (0.0%)	13 (2.6%)	13.1	2238^th of 2445 public elementary schools	8.5%		27.8	1813^th of 2445 public elementary schools	25.8%	425												30.0	27.1	26.8	23.8			33.3	27.1	35.1	30.7			26.3		99.1	99.1	100.0	100.0	100.0	99.1	99.1	99.3	$215,901	$4,668	$211,233
Cordello Avenue Elementary School	Public	K-6	51 Cordello Ave	Central Islip	11722	Suffolk County	Central Islip Union Free School District	No	No	No	Yes	(631) 348-4189	490	44	11.0	63.9%	4 (0.8%)	55 (11.2%)	421 (85.9%)	3 (0.6%)	2 (0.4%)	0 (0.0%)	5 (1.0%)	22.2	2014^th of 2445 public elementary schools	17.6%		14.6	2228^th of 2445 public elementary schools	8.9%	214												30.9	43.5	43.4	40.4			29.4	49.3	29.6	33.9			22.2		99.1	100.0	99.8	99.8	99.8	100.0	100.0	99.8	$27,085	$280	$26,805
South Shore Charter School	Public, Charter	K-2	82 Carleton Ave	Central Islip	11722	Suffolk County	South Shore Charter School	Yes	(n/a)	No	(n/a)	(631) 864-7000	268			1.1%	7 (2.6%)	99 (36.9%)	141 (52.6%)	4 (1.5%)	0 (0.0%)	1 (0.4%)	16 (6.0%)								(n/a)																																		$19,293	$1,265	$18,028

Cities Near Central Islip

City	Distance	# of Schools	Statewide Rank
Islip Terrace	1.8 mi	4	342^nd
Islandia	2.02 mi	1	723^rd
Brentwood	2.06 mi	13	734^th
Hauppauge	2.48 mi	3	139^th
Bohemia	2.75 mi	4	148^th

See the top NY New York cities

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the WNYC and the New York State Department of Health and the NY State Education Department.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.