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Clarkstown South Senior High School

Q: Is Clarkstown South Senior High School a good school?

Clarkstown South Senior High School ranks 130 th of 1234 New York high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

130^th

SchoolDigger Rank ?

of 1,234 New York High Schools

Better than 89% of New York high schools

Summary

Clarkstown South Senior High School is a public high school located in West Nyack, New York, serving 1,386 students in grades 9-12. This school consistently ranks among the top high schools in the state, with exceptional academic performance, strong student subgroup results, and relatively low dropout rates.

Clarkstown South Senior High School's students excel on Regents exams, with proficiency rates significantly higher than the state and district averages across a wide range of subjects, including Common Core Algebra II, Common Core English Language Arts, and U.S. History and Government. The school's student subgroups, such as Asian, African American, and Hispanic students, as well as students with disabilities and English Language Learners, also perform exceptionally well, often ranking among the top 50-80 schools in the state. The school's four-year graduation rate ranges from 84.3% to 96.4%, outperforming the state average, and its dropout rate is low, ranging from 0.3% to 4.9%.

Compared to nearby schools, Sleepy Hollow High School, Suffern Senior High School, and Ramapo High School generally have lower academic performance and higher rates of free/reduced lunch recipients. However, Tappan Zee High School, part of the South Orangetown Central School District, is a high-performing school that rivals Clarkstown South in many academic metrics. Clarkstown South's high per-student spending of $27,061 and small class sizes may contribute to its success, but the school's high chronic absenteeism rate, ranging from 15.4% to 34.1%, is an area that could benefit from further attention and improvement.

1,386

Students ?

12.1

Student/teacher ratio ?

$14,387

Per pupil spending ?

22.8%

Free/discounted lunch ?

31 Demarest Mill Rd
West Nyack, NY 10994-3430

(845) 624-3400

District: Clarkstown Central School District

Feeder schools for Clarkstown South Senior High School:

Elementary:	Bardonia Elementary School
	Laurel Plains Elementary School
	Link Elementary School
	Strawtown Elementary School
	More...
	West Nyack Elementary School

Racial breakdown:

White:

49.2%

Hispanic:

26.4%

Asian:

15.4%

See top rated New York high schools

Compare Clarkstown South Senior High School to nearby high schools!

At a glance

▼ Ranking trend: Declining — 96th percentile in 2014 → 89th in 2025

Strengths

✓Test scores above the New York average (87% vs 66% meeting standards)

✓Ranks in the top 11% of New York high schools

✓93% graduate in 4 years — above the New York average (83%)

Worth a look

!Ranking has slipped — down 7 percentile points since 2014

!Living Environment scores 26 pts below the New York average

Students meeting standards (2024-2025) ?

This school87%

District avg85%

New York avg66%

130^th of 1,234

New York public high schools ?

Top 11%▼ down 7 pts since 2015

From top 4% (2015) to top 11% (2025)

See the entire ranking list of New York High Schools →

★★★★★

SchoolDigger rating ?

1^st of 2High Schools in the Clarkstown Central School District

225^th of 874Clarkstown Central School District among New York districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	New York percentile	Rating
2025	81.0	130 of 1234	89.5%	★★★★☆
2024	78.5	159 of 1242	87.2%	★★★★☆
2023	80.6	107 of 1228	91.3%	★★★★★
2022	78.2	145 of 1190	87.8%	★★★★☆
2019	79.4	111 of 1207	90.8%	★★★★★
2018	79.9	84 of 1210	93.1%	★★★★★
2017	81.7	88 of 1221	92.8%	★★★★★
2016	81.7	60 of 1255	95.2%	★★★★★
2015	82.1	46 of 1255	96.3%	★★★★★
2014	80.3	53 of 1237	95.7%	★★★★★
2013	82.6	36 of 1217	97.0%	★★★★★
2012	80.0	68 of 1198	94.3%	★★★★★
2011	78.4	65 of 1165	94.4%	★★★★★
2010	75.0	112 of 1117	90.0%	★★★★★
2009	72.3	165 of 1086	84.8%	★★★★☆
2008	74.7	98 of 1027	90.5%	★★★★★
2007	73.2	115 of 1002	88.5%	★★★★☆
2006	73.3	126 of 986	87.2%	★★★★☆
2005	74.1	91 of 935	90.3%	★★★★★

African American

Year	Avg score	Statewide rank	New York percentile	Rating
2025	86.2	38 of 713	94.7%	★★★★★
2024	85.0	52 of 690	92.5%	★★★★★
2023	84.6	52 of 671	92.3%	★★★★★
2022	84.1	47 of 593	92.1%	★★★★★
2019	82.7	51 of 686	92.6%	★★★★★

Asian

Year	Avg score	Statewide rank	New York percentile	Rating
2025	77.9	48 of 413	88.4%	★★★★☆
2024	76.1	61 of 426	85.7%	★★★★☆
2023	77.6	57 of 424	86.6%	★★★★☆
2022	74.1	78 of 386	79.8%	★★★★☆
2019	73.7	85 of 447	81.0%	★★★★☆
2018	72.2	104 of 426	75.6%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	New York percentile	Rating
2025	75.4	95 of 669	85.8%	★★★★☆
2024	47.2	296 of 637	53.5%	★★★☆☆

Female

Year	Avg score	Statewide rank	New York percentile	Rating
2025	81.3	120 of 1206	90.0%	★★★★★
2024	77.2	187 of 1219	84.7%	★★★★☆
2023	78.0	167 of 1197	86.0%	★★★★☆
2022	76.1	178 of 1155	84.6%	★★★★☆
2019	77.0	172 of 1193	85.6%	★★★★☆
2018	79.9	84 of 1176	92.9%	★★★★★

Hispanic

Year	Avg score	Statewide rank	New York percentile	Rating
2025	83.0	76 of 885	91.4%	★★★★★
2024	82.1	81 of 865	90.6%	★★★★★
2023	83.0	73 of 851	91.4%	★★★★★
2022	81.4	76 of 760	90.0%	★★★★★
2019	82.1	76 of 815	90.7%	★★★★★
2018	81.9	73 of 791	90.8%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	New York percentile	Rating
2025	74.0	154 of 1179	86.9%	★★★★☆
2024	68.9	235 of 1170	79.9%	★★★★☆
2023	77.7	95 of 1155	91.8%	★★★★★
2022	79.3	76 of 1101	93.1%	★★★★★
2019	74.4	151 of 1179	87.2%	★★★★☆
2018	71.4	175 of 1154	84.8%	★★★★☆

Male

Year	Avg score	Statewide rank	New York percentile	Rating
2025	79.4	147 of 1201	87.8%	★★★★☆
2024	78.3	152 of 1211	87.4%	★★★★☆
2023	81.4	87 of 1191	92.7%	★★★★★
2022	78.1	129 of 1154	88.8%	★★★★☆
2019	79.8	85 of 1190	92.9%	★★★★★
2018	78.3	106 of 1176	91.0%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	New York percentile	Rating
2025	73.0	66 of 328	79.9%	★★★★☆
2024	77.3	45 of 306	85.3%	★★★★☆
2023	74.6	49 of 272	82.0%	★★★★☆
2022	84.7	8 of 212	96.2%	★★★★★
2019	64.8	58 of 165	64.8%	★★★☆☆

Special Education

Year	Avg score	Statewide rank	New York percentile	Rating
2025	87.2	75 of 1149	93.5%	★★★★★
2024	87.2	76 of 1144	93.4%	★★★★★
2023	86.2	78 of 1130	93.1%	★★★★★
2022	88.3	52 of 1038	95.0%	★★★★★
2019	85.5	95 of 1132	91.6%	★★★★★
2018	88.1	67 of 1095	93.9%	★★★★★

White

Year	Avg score	Statewide rank	New York percentile	Rating
2025	72.3	131 of 788	83.4%	★★★★☆
2024	66.9	206 of 781	73.6%	★★★★☆
2023	72.0	134 of 776	82.7%	★★★★☆
2022	67.1	174 of 738	76.4%	★★★★☆
2019	70.9	144 of 793	81.8%	★★★★☆
2018	73.5	97 of 765	87.3%	★★★★☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

African American (2025)95th percentile+5 vs school

Special Education (2025)93rd percentile+4 vs school

Hispanic (2025)91st percentile~ school

Female (2025)90th percentile~ school

Asian (2025)88th percentile~ school

Male (2025)88th percentile~ school

Low Socio Economic Status (2025)87th percentile-3 vs school

English Language Learner (2025)86th percentile-4 vs school

White (2025)83rd percentile-6 vs school

Multi-racial (2025)80th percentile-10 vs school

By subject vs New York (2024-2025) ?

Common Core Algebra II98%+23 vs state

U.S. History and Government94%+19 vs state

Common Core English Language Arts93%+18 vs state

Global History and Geography92%+16 vs state

Geometry91%+31 vs state

Algebra I84%+27 vs state

Life Science Biology83%+25 vs state

Earth and Space Sciences79%+23 vs state

Chemistry75%+11 vs state

Physics62%-7 vs state

Earth Science50%-15 vs state

Common Core Geometry43%+20 vs state

Living Environment31%-26 vs state

5.0

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What people are saying

by a parent
Wednesday, September 7, 2011

Daughter graduated and was accepted at several top notch colleges. The staff is wonderful and the experience with the administration was wonderful! Close Quote

Schools Near Clarkstown South Senior High School

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 Life Science Biology (2025)	Regents Geometry (2025)	Regents Earth and Space Sciences (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 Life Science Biology End of Course	Regents Geometry End of Course	Regents Earth and Space Sciences End of Course	NY State Assessments English Language Arts 8th Grade	NY State Assessments Math 8th 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
Clarkstown South Senior High School	Public	9-12	31 Demarest Mill Rd	West Nyack	10994	Rockland County	Clarkstown Central School District	No	No	No	No	(845) 624-3400	1,386	114	12.1	22.8%	682 (49.2%)	90 (6.5%)	366 (26.4%)	214 (15.4%)	1 (0.1%)	1 (0.1%)	31 (2.2%)	81	130^th of 1234 public high schools	89.5%		78.5	159^th of 1242 public high schools	87.2%	29	75.5	98.1	92.9	43.5	50.0	92.1	30.8	61.8	94.2	83.5	82.8	90.8	79.5				99.5	99.8	100.0	100.0	100.0	99.9	99.8	99.9	$14,387	$368	$14,019
Nanuet Senior High School	Public	9-12	103 Church St	Nanuet	10954	Rockland County	Nanuet Union Free School District	No	No	No	No	(845) 627-9808	745	67	11.1	32.5%	283 (38.0%)	75 (10.1%)	245 (32.9%)	111 (14.9%)	4 (0.5%)	1 (0.1%)	25 (3.4%)	77.4	191^st of 1234 public high schools	84.5%		79.3	142^nd of 1242 public high schools	88.6%	49	73.0	88.6	91.3		65.7	92.2	84.0		91.2	75.6		76.4					99.3	99.7	100.0	100.0	100.0	99.6	99.7	99.7	$38,046	$595	$37,451
Nyack Senior High School	Public	9-12	360 Christian Herald Rd	Nyack	10960	Rockland County	Nyack Union Free School District	No	No	No	Yes	(845) 353-7100	945	95	9.9	27.5%	339 (35.9%)	132 (14.0%)	333 (35.2%)	70 (7.4%)	1 (0.1%)	3 (0.3%)	65 (6.9%)	67.9	371^st of 1234 public high schools	69.9%		70.7	329^th of 1242 public high schools	73.5%	42	66.0	100.0	83.6	14.3	58.3	85.5	36.9	84.2	91.2	69.5	31.7	74.4	72.2				96.7	97.7	99.8	99.8	99.8	98.1	97.6	99.3	$35,371	$519	$34,852
Rockland County Sheriffs Department	Public	9-12	53 New Hempstead Road	New City	10956	Rockland County	Clarkstown Central School District	No	No	No	No	(845) 638-5466	7	2	3.5		2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)
Pearl River High School	Public	8-12	275 E Central Ave	Pearl River	10965	Rockland County	Pearl River Union Free School District	No	No	No	Yes	(845) 620-3800	904	84	10.7	20.1%	659 (72.9%)	8 (0.9%)	182 (20.1%)	32 (3.5%)	0 (0.0%)	0 (0.0%)	23 (2.5%)	80.8	136^th of 1234 public high schools	89.0%		80.2	123^rd of 1242 public high schools	90.1%	13	76.2	94.5	90.0	36.4	87.6	94.1	89.0		92.1	75.8		89.5		63.6	37.9	42.7	99.6	99.8	99.9	99.9	99.9	99.9	99.9	99.8	$39,028	$659	$38,369
Clarkstown North Senior High School	Public	9-12	151 Congers Rd	New City	10956	Rockland County	Clarkstown Central School District	No	No	No	Yes	(845) 639-6504	1,209	117	10.2	27.0%	562 (46.5%)	73 (6.0%)	365 (30.2%)	171 (14.1%)	0 (0.0%)	3 (0.2%)	33 (2.7%)	75	236^th of 1234 public high schools	80.9%		75.7	218^th of 1242 public high schools	82.4%	18	76.2	97.2	89.4		18.2	91.9	47.2	57.5	86.7	76.7	74.5	81.1	64.3				99.5	99.7	99.8	99.8	99.8	99.8	99.8	99.8	$14,536	$372	$14,164
Spring Valley High School	Public	9-12	361 Rt 59	Spring Valley	10977	Rockland County	East Ramapo Central School District (Spring Valley)	No	No	No	Yes	(845) 577-6500	1,501	124	12.1	86.0%	26 (1.7%)	290 (19.3%)	1,146 (76.3%)	28 (1.9%)	2 (0.1%)	6 (0.4%)	3 (0.2%)	17.6	1019^th of 1234 public high schools	17.4%		5.1	1205^th of 1242 public high schools	3.0%	186	7.9	31.2	47.2		44.4	57.1	35.4	16.7	62.2	34.1	53.2	48.9					94.0	98.2	98.8	98.8	98.8	98.2	98.3	98.2	$38,989	$4,754	$34,234
Tappan Zee High School	Public	9-12	15 Dutch Hill Rd	Orangeburg	10962	Rockland County	South Orangetown Central School District	No	No	No	Yes	(845) 680-1606	911	89	10.2	23.1%	542 (59.5%)	15 (1.6%)	221 (24.3%)	92 (10.1%)	0 (0.0%)	1 (0.1%)	40 (4.4%)	84	65^th of 1234 public high schools	94.7%		80.7	111^th of 1242 public high schools	91.1%	46	86.5	90.0	96.3		97.0	97.4	85.7	66.7	97.0	81.4		89.7					99.4	99.7	99.6	99.6	99.6	100.0	99.7	99.6	$39,097	$195	$38,902
Ramapo High School	Public	9-12	400 Viola Rd	Spring Valley	10977	Rockland County	East Ramapo Central School District (Spring Valley)	No	No	No	Yes	(845) 577-6400	1,694	127	13.3	82.8%	33 (1.9%)	309 (18.2%)	1,308 (77.2%)	28 (1.7%)	1 (0.1%)	6 (0.4%)	9 (0.5%)	23.8	939^th of 1234 public high schools	23.9%		20.7	970^th of 1242 public high schools	21.9%	31	47.5	34.4	48.7	40.0	74.6	68.5	30.9	17.7	75.3	24.2		39.4					91.2	93.1	96.8	96.8	96.8	92.9	92.7	98.2	$35,588	$4,425	$31,163
Sleepy Hollow High School	Public	9-12	210 N Broadway	Sleepy Hollow	10591	Westchester County	Union Free School District Of The Tarrytowns	No	No	No	No	(914) 631-8838	843	68	12.4	56.0%	227 (26.9%)	26 (3.1%)	548 (65.0%)	21 (2.5%)	0 (0.0%)	0 (0.0%)	21 (2.5%)	60.3	510^th of 1234 public high schools	58.7%		59.9	523^rd of 1242 public high schools	57.9%	13	73.3	84.6	78.2	22.2	55.1	79.9	39.1	93.4	76.4	68.1		80.3					89.2	93.3	91.9	91.9	91.9	93.5	92.1	90.4	$33,742	$441	$33,300

Frequently Asked Questions about Clarkstown South Senior High School

How many students attend Clarkstown South Senior High School?

In the 2024-25 school year, 1,386 students attended Clarkstown South Senior High School.

What schools feed into Clarkstown South Senior High School?

Clarkstown South Senior High School is fed by the following schools:

Elementary : Bardonia Elementary School
Elementary : Laurel Plains Elementary School
Elementary : Link Elementary School
Elementary : Strawtown Elementary School
Elementary : West Nyack Elementary School

What is the racial makeup of Clarkstown South Senior High School?

Students at Clarkstown South Senior High School are 49% White, 26% Hispanic, 15% Asian, 6% African American, 2% Two or more races.

Is Clarkstown South Senior High School a good school?

Clarkstown South Senior High School ranks 130^th of 1234 New York high schools. SchoolDigger rates this school 4 stars out of 5.

What district is Clarkstown South Senior High School in?

Clarkstown Central School District

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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.