School 21

Summary:

School 21 is an elementary school located in Yonkers, NY that serves grades PK-6 with 356 students. It is part of the Yonkers City School District, which is ranked 645 out of 865 school districts in New York and has a 1-star rating from SchoolDigger. Over the past 10 years, School 21 has consistently ranked in the bottom half of New York elementary schools, with a 2-star rating from SchoolDigger for the past 4 school years.

School 21 generally performs below the Yonkers City School District and New York state averages on the NY State Assessments for English Language Arts and Math across all grade levels. For example, in 2023-2024, only 53.85% of 3rd graders at School 21 were proficient or better in ELA, compared to 35.47% for the district and 42.6% for the state. However, the school has some bright spots, with African American students and English Language Learner students performing relatively better compared to their peers at other New York elementary schools. On the other hand, White students, Special Education students, and Low Socioeconomic Status students at School 21 perform in the bottom 2-3 deciles.

Despite increased per-student spending and a better student-teacher ratio, School 21's performance has remained stagnant or declined over the past 5-10 years. When compared to other nearby schools in the Yonkers district, School 21 performs worse than the higher-ranked magnet schools like Pearls Hawthorne School and Montessori School 27, but outperforms some other district schools like Cesar E Chavez School and Ella FitzGerald Academy. The poor performance of School 21 and other Yonkers district schools reflects the broader challenges facing the Yonkers City School District as a whole, which is ranked in the bottom quarter of New York districts and has a 1-star rating.


Detail:

Public PK, KG-6

 100 Lee Ave
       Yonkers, NY  10705-4797


(914) 376-8435

District: Yonkers City School District

SchoolDigger Rank:
1502nd of 2,445 New York Elementary Schools

Per Pupil Expenditures:  $19,872 Help


Student/teacher ratio:  14.1 Help
Number of students:  306

Racial breakdown:

Hispanic:
55.2%
White:
22.9%
African American:
13.4%
more

Free/discounted lunch recipients:  56.5% Help


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Performance Trends
Help
Compare Details School 21 ranks worse than 61.4% of elementary schools in New York. It also ranks 11th among 29 ranked elementary schools in the Yonkers City School District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 38.4. (See more...)
Student Body
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Compare Details Student population at School 21 is diverse. Racial makeup is: Hispanic (55.2%), White (22.9%), African American (13.4%). (See more...)
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Compare Details 56.5% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at School 21 is 14.1, which is the 2nd best among 29 elementary schools in the Yonkers City School District. (See more...)
Help
Compare School 21 employs 21.5 full-time teachers.
Finance
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Compare Details The average total spent per student at School 21 is $19,872, which is the 9th highest among 29 elementary schools in the Yonkers City School District.
Schooldigger 2024 Rankings:

School 21:

SchoolDigger ranks School 21 1502nd of 2445 New York public elementary schools. (See School 21 in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


Special Education students:
Low Socio Economic Status students:
Female students:
Male students:
African American students:
Hispanic students:
White students:


Yonkers City School District:

SchoolDigger ranks Yonkers City School District 645th of 865 New York school districts. (See district ranking list.)

Average Parent Rating:

Read all reviews and ratings detail for School 21.

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Rank History for School 21

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Compare

Rank History for all students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2006 68.87 786th 2206 64.4%
2007 29.39 1732nd 2219 21.9%
2008 29.69 1764th 2227 20.8%
2009 40.37 1625th 2257 28.0%
2010 17.19 1992nd 2263 12.0%
2011 11.54 2112th 2286 7.6%
2012 16.99 2018th 2320 13.0%
2013 22.14 1921st 2325 17.4%
2014 26.82 1802nd 2345 23.2%
2015 30.88 1689th 2352 28.2%
2016 24.01 1887th 2366 20.2%
2017 29.71 1740th 2386 27.1%
2018 21.85 1992nd 2395 16.8%
2019 22.50 1925th 2413 20.2%
2021 25.43 1736th 2201 21.1%
2022 40.10 1461st 2434 40.0%
2023 38.10 1497th 2439 38.6%
2024 38.40 1502nd 2445 38.6%
See the entire list of New York Elementary School Rankings!

Rank History for English Language Learner students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 31.79 702nd 938 25.2%
2019 36.45 535th 860 37.8%
2021 41.27 255th 454 43.8%
2022 63.00 238th 1027 76.8%
2023 54.91 306th 1001 69.4%
See the entire list of Best New York Elementary Schools for English Language Learner Students!

Rank History for Special Education students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 34.09 1320th 1941 32.0%
2021 14.90 1017th 1044 2.6%
2022 21.63 1875th 2031 7.7%
2023 37.19 1181st 2016 41.4%
2024 37.22 1247th 2110 40.9%
See the entire list of Best New York Elementary Schools for Special Education Students!

Rank History for Low Socio Economic Status students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 25.44 1689th 2045 17.4%
2019 24.80 1636th 2032 19.5%
2021 44.45 911th 1678 45.7%
2022 48.10 965th 2099 54.0%
2023 44.38 1058th 2041 48.2%
2024 45.70 1022nd 2078 50.8%
See the entire list of Best New York Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 30.07 1756th 2338 24.9%
2019 22.34 1940th 2357 17.7%
2021 31.25 1427th 1955 27.0%
2022 43.62 1342nd 2401 44.1%
2023 42.04 1374th 2403 42.8%
2024 37.92 1510th 2413 37.4%
See the entire list of Best New York Elementary Schools for Female Students!

Rank History for Male students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 18.88 2035th 2340 13.0%
2019 25.10 1840th 2358 22.0%
2021 23.65 1593rd 1961 18.8%
2022 38.66 1488th 2400 38.0%
2023 37.19 1516th 2400 36.8%
2024 40.70 1420th 2411 41.1%
See the entire list of Best New York Elementary Schools for Male Students!

Rank History for African American students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 29.63 714th 948 24.7%
2019 16.58 830th 891 6.8%
2023 46.99 420th 857 51.0%
2024 54.85 362nd 927 60.9%
See the entire list of Best New York Elementary Schools for African American Students!

Rank History for Hispanic students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 29.77 1055th 1392 24.2%
2019 30.72 935th 1315 28.9%
2021 37.95 520th 818 36.4%
2022 50.71 673rd 1503 55.2%
2023 42.50 808th 1429 43.5%
2024 39.79 896th 1531 41.5%
See the entire list of Best New York Elementary Schools for Hispanic Students!

Rank History for White students at School 21

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools NY State Percentile SchoolDigger Rating
2018 20.20 1228th 1408 12.8%
2019 23.58 1107th 1338 17.3%
2021 31.47 901st 1224 26.4%
2022 30.81 1031st 1399 26.3%
2023 30.12 989th 1337 26.0%
2024 48.64 717th 1392 48.5%
See the entire list of Best New York Elementary Schools for White Students!

Data source: test scores: NY State Education Department, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

School 21 Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 






Data source: NY State Education Department

Review counts

All ratings (Avg rating: 1)
0%

0%

0%

0%

100%

  

Reviews:
by a parent
Tuesday, October 19, 2021

Open Quote Poor leadership, unprofessional and rude. Close Quote



Enrollment information for School 21

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1989 147 103 14 105 0 n/a n/a 0 369
1990 156 93 6 139 0 n/a n/a 0 394
1991 132 78 19 189 0 n/a n/a 0 418
1992 130 72 14 200 0 n/a n/a 0 416
1993 120 70 10 207 0 n/a n/a 0 407
1994 111 58 10 201 0 n/a n/a 0 380
1995 113 74 11 226 0 n/a n/a 0 424
1996 113 74 11 226 0 n/a n/a 0 424
1997 97 77 15 256 0 n/a n/a 0 445
1998 90 73 14 215 2 n/a n/a 0 394
1999 99 93 14 221 0 n/a n/a 0 427
2000 85 109 19 210 0 n/a n/a 19 442
2001 93 93 23 237 0 n/a n/a 0 446
2002 85 76 26 239 0 n/a n/a 0 426
2003 85 76 26 239 0 n/a n/a 0 426
2004 77 67 27 230 0 n/a n/a 0 401
2005 82 57 29 225 0 n/a n/a 0 393
2006 84 53 26 223 2 n/a n/a 0 388
2007 88 61 26 235 0 n/a n/a 0 410
2008 94 76 26 265 0 n/a n/a 0 461
2009 95 51 20 243 0 n/a n/a 0 409
2010 87 51 19 243 0 n/a n/a 0 400
2011 107 62 22 290 1 0 1 0 483
2012 118 51 28 254 0 0 5 0 456
2013 113 64 26 266 2 0 5 0 476
2014 118 65 30 281 3 0 7 0 504
2015 115 66 35 283 4 0 8 0 511
2016 110 69 31 274 3 0 8 0 495
2017 110 59 31 245 3 1 8 0 457
2018 105 66 34 242 3 1 9 0 460
2019 105 57 29 253 4 0 7 0 455
2020 95 62 25 232 5 0 8 0 427
2021 99 62 23 221 6 0 11 0 422
2022 86 46 20 210 4 0 8 0 374
2023 81 45 18 202 4 0 6 0 356
2024 70 41 14 169 4 0 8 0 306

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at School 21

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 369 21.9 16.8 n/a
1990 394 20.9 18.8 n/a
1991 418 21.9 19.0 n/a
1992 416 22.9 18.1 n/a
1993 407 25.0 16.3 n/a
1994 380 24.0 15.8 62.9
1995 424 24.0 17.7 73.6
1996 424 24.0 17.7 73.6
1997 445 25.0 17.8 73.5
1998 394 25.0 15.8 90.9
1999 427 28.0 15.3 73.5
2000 442 29.0 15.2 81.6
2001 446 33.0 13.5 79.6
2002 426 27.0 15.8 81.9
2003 426 27.0 15.8 81.9
2004 401 n/a n/a n/a
2005 393 21.0 18.7 77.1
2006 388 23.0 16.9 73.5
2007 410 25.0 16.4 71.2
2008 461 26.0 17.7 67.5
2009 409 25.0 16.4 57.2
2010 400 23.0 17.3 64
2011 483 28.2 17.0 66.7
2012 456 23.0 19.8 70
2013 476 21.0 22.6 75.2
2014 504 21.0 24.0 65.1
2015 511 23.0 22.2 73.8
2016 495 21.0 23.5 73.1
2017 457 23.0 19.8 72.9
2018 460 23.0 20.0 62.8
2019 455 19.0 23.9 50.8
2020 427 22.0 19.4 70.3
2021 422 20.4 20.6 73
2022 374 21.5 17.3 71.9
2023 356 21.4 16.5 64.3
2024 306 21.5 14.1 56.5

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio School 21

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 369 21.9 16.8 n/a
1990 394 20.9 18.8 n/a
1991 418 21.9 19.0 n/a
1992 416 22.9 18.1 n/a
1993 407 25.0 16.3 n/a
1994 380 24.0 15.8 62.9
1995 424 24.0 17.7 73.6
1996 424 24.0 17.7 73.6
1997 445 25.0 17.8 73.5
1998 394 25.0 15.8 90.9
1999 427 28.0 15.3 73.5
2000 442 29.0 15.2 81.6
2001 446 33.0 13.5 79.6
2002 426 27.0 15.8 81.9
2003 426 27.0 15.8 81.9
2004 401 n/a n/a n/a
2005 393 21.0 18.7 77.1
2006 388 23.0 16.9 73.5
2007 410 25.0 16.4 71.2
2008 461 26.0 17.7 67.5
2009 409 25.0 16.4 57.2
2010 400 23.0 17.3 64
2011 483 28.2 17.0 66.7
2012 456 23.0 19.8 70
2013 476 21.0 22.6 75.2
2014 504 21.0 24.0 65.1
2015 511 23.0 22.2 73.8
2016 495 21.0 23.5 73.1
2017 457 23.0 19.8 72.9
2018 460 23.0 20.0 62.8
2019 455 19.0 23.9 50.8
2020 427 22.0 19.4 70.3
2021 422 20.4 20.6 73
2022 374 21.5 17.3 71.9
2023 356 21.4 16.5 64.3
2024 306 21.5 14.1 56.5

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Immunization Rates

School 21

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Compare
YearCompletely ImmunizedReligious ExemptionMedical ExemptionPolioMeaslesMumpsRubellaDiphtheriaHepatitis BVaricella
201398.6%0.2%0.0%99.5%99.5%98.9%98.9%99.5%99.8%99.5%
201497.9%0.2%0.0%99.6%98.1%99.6%99.6%99.6%99.6%99.2%
201597.3%0.4%0.0%99.0%99.4%99.4%99.6%98.6%99.4%99.0%
201696.0%0.0%0.0%98.3%98.3%98.1%100.0%97.0%100.0%97.5%
201795.7%0.2%0.0%99.8%98.6%98.6%99.5%98.4%99.3%97.9%
201895.8%0.2%0.0%98.4%98.6%98.6%99.8%98.1%99.3%97.9%
201991.9%0.0%0.0%99.5%99.5%99.5%100.0%99.3%99.8%99.1%
202098.5%0.0%99.8%100.0%100.0%100.0%99.3%100.0%99.0%

Data source: New York State Department of Health
Finances

Per Pupil Expenditures for School 21

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YearExpenditures from Federal FundsExpenditures from State and Local FundsTotal Expenditures Per Pupil (All Funds)
2019 $886 (6.6%) $12,531 (93.4%) $13,417
2020 $438 (2.9%) $14,621 (97.1%) $15,059
2021 $382 (2.5%) $15,151 (97.5%) $15,533
2022 $610 (3.5%) $16,904 (96.5%) $17,514
2023 $1,390 (7.0%) $18,482 (93.0%) $19,872

Data source: New York Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on School 21

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 1925th of 2413 Elementary schoolsRanks 1497th of 2439 Elementary schools
 18.4%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade English Language Arts (School 21)4761.3
 14.3%
   3rd Grade English Language Arts (Yonkers City School District)4039.1
 0.9%
   3rd Grade English Language Arts (New York)5244.9
 7.1%
3rd Grade Math (School 21)4754.8
 7.8%
   3rd Grade Math (Yonkers City School District)4243.6
 1.6%
   3rd Grade Math (New York)5453.7
 0.3%
4th Grade English Language Arts (School 21)1641.3
 25.3%
   4th Grade English Language Arts (Yonkers City School District)3642.4
 6.4%
   4th Grade English Language Arts (New York)4848.8
 0.8%
4th Grade Math (School 21)2934.8
 5.8%
   4th Grade Math (Yonkers City School District)3844.2
 6.2%
   4th Grade Math (New York)5053.9
 3.8%
5th Grade English Language Arts (School 21)2151.3
 30.3%
   5th Grade English Language Arts (Yonkers City School District)2438.9
 14.9%
   5th Grade English Language Arts (New York)3845.1
 7.1%
5th Grade Math (School 21)3227.5
 4.5%
   5th Grade Math (Yonkers City School District)3234.5
 2.5%
   5th Grade Math (New York)4649.7
 3.7%
6th Grade English Language Arts (School 21)3128.8
 2.2%
   6th Grade English Language Arts (Yonkers City School District)3435.1
 1.1%
   6th Grade English Language Arts (New York)4745.8
 1.2%
6th Grade Math (School 21)2236.2
 14.2%
   6th Grade Math (Yonkers City School District)3837.6
 0.4%
   6th Grade Math (New York)4748.1
 1.1%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students455356
 21.8%
African American5745
 21.1%
American Indian44
Asian2918
 37.9%
Hispanic253202
 20.2%
Pacific Islander00
White10581
 22.9%
Two or More Races76
 14.3%
% Free/Discounted Lunch Recipients50.8%64.3%
 13.6%


Schools Near School 21









Frequently Asked Questions about School 21

In the 2023-24 school year, 306 students attended School 21.

School 21 ranks 1502nd of 2445 New York elementary schools. SchoolDigger rates this school 2 stars out of 5.

Students at School 21 are 55% Hispanic, 23% White, 13% African American, 5% Asian, 3% Two or more races, 1% American Indian.


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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.





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