Oster Elementary

Public K-5

 1855 Lencar Way
       San Jose, CA  95124-3603


(408) 266-8121

District: Union Elementary

SchoolDigger Rank:
250th of 5,868 California Elementary Schools

Per Pupil Expenditures:  $6,948 Help


Students who attend Oster Elementary usually attend:

Middle:    Dartmouth Middle

Student/teacher ratio:  24.5 Help
Number of students:  638

Racial breakdown:

Asian:
51.1%
White:
24.9%
Hispanic:
16.1%
more

Free/discounted lunch recipients:  8.9% Help


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 Compare Oster Elementary to nearby elementary schools!

Performance Trends
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Compare Details Oster Elementary ranks better than 95.7% of elementary schools in California. It also ranks 3rd among 6 ranked elementary schools in the Union Elementary School District. (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 96.26. (See more...)
Help
Chronic absenteeism in a high school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
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Compare Details Student population at Oster Elementary is diverse. Racial makeup is: Asian (51.1%), White (24.9%), Hispanic (16.1%). (See more...)
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Compare Details 8.9% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Oster Elementary is 24.5, which is the 3rd best among 6 elementary schools in the Union Elementary School District. (See more...)
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Compare Oster Elementary employs 26 full-time teachers.
Finance
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Compare Details The average total spent per student at Oster Elementary is $6,948. 4 elementary schools in the Union Elementary School District spend more per student.
Schooldigger 2023 Rankings:

Oster Elementary:

SchoolDigger ranks Oster Elementary 250th of 5868 California public elementary schools. (See Oster Elementary in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Female students:
Male students:
Asian students:
Hispanic students:
White students:


Union Elementary:

SchoolDigger ranks Union Elementary 66th of 1560 California school districts. (See district ranking list.)


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Rank History for Oster Elementary

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Rank History for all students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2004 87.46 610th 4809 87.3%
2005 84.30 760th 4822 84.2%
2006 79.72 978th 4818 79.7%
2007 78.42 1038th 5113 79.7%
2008 89.51 513th 5113 90.0%
2009 86.02 708th 5193 86.4%
2010 80.92 963rd 5314 81.9%
2011 82.73 860th 5377 84.0%
2012 87.06 616th 5390 88.6%
2013 91.26 381st 5530 93.1%
2015 95.69 278th 5611 95.0%
2016 96.12 222nd 5614 96.0%
2017 97.11 166th 5692 97.1%
2018 95.45 250th 5662 95.6%
2019 94.43 339th 5789 94.1%
2022 96.43 251st 5883 95.7%
2023 96.26 248th 5848 95.8%
See the entire list of California Elementary School Rankings!

Rank History for Multi-racial students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 79.16 71st 445 84.0%
See the entire list of Best California Elementary Schools for Multi-racial Students!

Rank History for English Language Learner students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 86.80 218th 3275 93.3%
2022 92.42 140th 3311 95.8%
2023 95.93 68th 3240 97.9%
See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for Special Education students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2023 92.24 142nd 2416 94.1%
See the entire list of Best California Elementary Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 76.79 827th 5084 83.7%
2019 57.38 1931st 5173 62.7%
2023 57.24 1918th 5355 64.2%
See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 92.48 405th 5413 92.5%
2019 90.57 527th 5492 90.4%
2022 96.15 217th 5635 96.1%
2023 95.40 250th 5595 95.5%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for Disabled students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 86.65 193rd 2128 90.9%
2019 87.89 212th 2585 91.8%
See the entire list of Best California Elementary Schools for Disabled Students!

Rank History for Male students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 96.46 154th 5431 97.2%
2019 95.55 203rd 5510 96.3%
2022 95.00 303rd 5663 94.6%
2023 95.61 249th 5627 95.6%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for Asian students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 80.17 129th 1071 88.0%
2019 81.74 95th 1149 91.7%
2022 81.10 121st 1154 89.5%
2023 83.01 84th 1183 92.9%
See the entire list of Best California Elementary Schools for Asian Students!

Rank History for Hispanic students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 77.17 799th 4830 83.5%
2019 72.67 1031st 4963 79.2%
2022 76.26 887th 5084 82.6%
2023 77.01 873rd 5079 82.8%
See the entire list of Best California Elementary Schools for Hispanic Students!

Rank History for White students at Oster Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 88.63 132nd 2737 95.2%
2019 80.61 450th 2834 84.1%
2022 80.58 427th 2726 84.3%
2023 77.48 521st 2659 80.4%
See the entire list of Best California Elementary Schools for White Students!

Data source: test scores: California Department of Education, 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.

Oster Elementary Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 






Data source: California Department of Education

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Enrollment information for Oster Elementary

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 292 13 30 40 0 n/a n/a 0 375
1989 282 5 33 70 0 n/a n/a 0 390
1990 300 8 38 54 0 n/a n/a 0 400
1991 279 7 35 79 0 n/a n/a 0 400
1992 305 6 31 69 0 n/a n/a 0 411
1993 318 8 33 66 1 n/a n/a 0 426
1994 291 10 32 55 3 n/a n/a 0 391
1995 308 16 23 44 4 n/a n/a 0 395
1996 308 16 23 44 4 n/a n/a 0 395
1997 304 26 21 60 1 n/a n/a 0 412
1998 273 25 33 54 0 n/a n/a 0 385
1999 277 16 28 50 1 n/a n/a 7 379
2000 288 12 22 37 2 n/a n/a 0 361
2001 262 13 27 35 2 n/a n/a 0 339
2002 197 7 30 42 1 n/a n/a 12 289
2003 197 7 30 42 1 n/a n/a 12 289
2004 193 13 32 50 0 n/a n/a 10 298
2005 285 20 52 96 1 n/a n/a 5 459
2006 248 26 72 108 1 n/a n/a 3 458
2007 232 26 68 113 1 n/a n/a 4 444
2008 217 26 73 114 3 n/a n/a 0 433
2009 209 23 78 115 1 7 13 0 446
2010 212 17 102 109 2 11 21 0 474
2011 220 25 95 116 1 7 27 0 491
2012 230 17 100 110 2 8 34 0 501
2013 241 15 112 107 2 7 47 0 531
2014 213 14 96 95 2 2 113 0 535
2015 200 8 85 83 2 0 148 0 526
2016 222 14 154 92 2 0 69 0 553
2017 211 8 196 94 2 0 70 0 581
2018 199 5 228 114 1 0 82 0 629
2019 199 9 269 107 1 0 72 0 657
2020 185 8 275 103 0 0 58 0 629
2021 171 6 305 96 0 0 48 0 626
2022 160 5 322 100 0 0 42 0 629
2023 159 8 326 103 0 0 42 0 638

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 Oster Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 375 21.5 17.4 n/a
1989 390 20.0 19.5 n/a
1990 400 21.0 19.0 n/a
1991 400 17.0 23.5 n/a
1992 411 17.3 23.7 14.8
1993 426 23.0 18.5 18.3
1994 391 17.0 23.0 17.9
1995 395 17.5 22.6 20.3
1996 395 17.5 22.6 20.3
1997 412 20.0 20.6 21.6
1998 385 20.0 19.3 24.9
1999 379 21.0 18.0 23.9
2000 361 18.0 20.1 19.7
2001 339 16.6 20.4 25.1
2002 289 13.0 22.2 31.8
2003 289 13.0 22.2 31.8
2004 298 15.0 19.9 29.9
2005 459 22.0 20.9 21.4
2006 458 22.5 20.4 29.5
2007 444 21.5 20.7 16.6
2008 433 22.9 18.9 30.5
2009 446 23.2 17.9 21.5
2010 474 22.4 21.0 27.6
2011 491 n/a n/a 27.3
2012 501 22.9 21.8 n/a
2013 531 23.4 22.6 17.3
2014 535 22.0 24.3 18.1
2015 526 22.0 23.9 14.1
2016 553 22.0 25.1 12.1
2017 581 22.5 25.8 10.3
2018 629 24.5 25.6 11.6
2019 657 26.0 25.2 10.2
2020 629 n/a n/a 10.5
2021 626 25.0 25.0 9.6
2022 629 25.1 25.0 6.7
2023 638 26.0 24.5 8.9

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 Oster Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 375 21.5 17.4 n/a
1989 390 20.0 19.5 n/a
1990 400 21.0 19.0 n/a
1991 400 17.0 23.5 n/a
1992 411 17.3 23.7 14.8
1993 426 23.0 18.5 18.3
1994 391 17.0 23.0 17.9
1995 395 17.5 22.6 20.3
1996 395 17.5 22.6 20.3
1997 412 20.0 20.6 21.6
1998 385 20.0 19.3 24.9
1999 379 21.0 18.0 23.9
2000 361 18.0 20.1 19.7
2001 339 16.6 20.4 25.1
2002 289 13.0 22.2 31.8
2003 289 13.0 22.2 31.8
2004 298 15.0 19.9 29.9
2005 459 22.0 20.9 21.4
2006 458 22.5 20.4 29.5
2007 444 21.5 20.7 16.6
2008 433 22.9 18.9 30.5
2009 446 23.2 17.9 21.5
2010 474 22.4 21.0 27.6
2011 491 n/a n/a 27.3
2012 501 22.9 21.8 n/a
2013 531 23.4 22.6 17.3
2014 535 22.0 24.3 18.1
2015 526 22.0 23.9 14.1
2016 553 22.0 25.1 12.1
2017 581 22.5 25.8 10.3
2018 629 24.5 25.6 11.6
2019 657 26.0 25.2 10.2
2020 629 n/a n/a 10.5
2021 626 25.0 25.0 9.6
2022 629 25.1 25.0 6.7
2023 638 26.0 24.5 8.9

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.

Kindergarten Immunization Rates

Oster Elementary

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Compare
YearCompletely ImmunizedReligious ExemptionMedical ExemptionConditionalPolioHepatitis BVaricellaDTPMMR
201298.0%2.0%0.0%0.0%98.0%98.0%98.0%98.0%98.0%
201395.0%0.0%0.0%5.0%98.0%100.0%99.0%97.0%96.0%
201492.0%4.0%0.0%3.0%95.0%95.0%96.0%93.0%95.0%
201593.0%4.0%0.0%3.0%96.0%95.0%96.0%96.0%95.0%
201698.0%2.0%0.0%0.0%98.0%98.0%98.0%98.0%98.0%
2017≥98.0%≤2.0%≤2.0%≤2.0%≥98.0%≥98.0%≥98.0%≥98.0%≥98.0%
201895.0%0.0%0.0%5.0%96.0%≥99.0%≥99.0%96.0%95.0%
201996.0%0.0%4.0%≥99.0%≥99.0%≥99.0%96.0%≥99.0%

Data source: California Department of Public Health
Finances

Per Pupil Expenditures for Oster Elementary

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YearTotal Expenditures Per Pupil
2018 $6,948

Data source: California Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Oster Elementary

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 339th of 5789 Elementary schoolsRanks 248th of 5848 Elementary schools
 1.6%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade English Language Arts/Literacy (Oster Elementary)77.778.1
 0.4%
   3rd Grade English Language Arts/Literacy (Union Elementary)75.576.5
 1%
   3rd Grade English Language Arts/Literacy (California)48.543
 5.6%
3rd Grade Mathematics (Oster Elementary)8181
   3rd Grade Mathematics (Union Elementary)81.878
 3.8%
   3rd Grade Mathematics (California)50.245.1
 5.1%
4th Grade English Language Arts/Literacy (Oster Elementary)75.672.1
 3.5%
   4th Grade English Language Arts/Literacy (Union Elementary)7571.8
 3.2%
   4th Grade English Language Arts/Literacy (California)49.543.7
 5.7%
4th Grade Mathematics (Oster Elementary)73.380
 6.7%
   4th Grade Mathematics (Union Elementary)73.374.7
 1.4%
   4th Grade Mathematics (California)44.940.8
 4.1%
5th Grade English Language Arts/Literacy (Oster Elementary)82.583.6
 1.1%
   5th Grade English Language Arts/Literacy (Union Elementary)8178.7
 2.3%
   5th Grade English Language Arts/Literacy (California)51.746.7
 5%
5th Grade Mathematics (Oster Elementary)79.882.9
 3%
   5th Grade Mathematics (Union Elementary)7575.9
 0.8%
   5th Grade Mathematics (California)3833.4
 4.6%
5th Grade Science (Oster Elementary)64.372.1
 7.7%
   5th Grade Science (Union Elementary)6366.3
 3.3%
   5th Grade Science (California)31.731.9
 0.1%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students657638
 2.9%
African American98
 11.1%
American Indian10
 100%
Asian269326
 21.2%
Hispanic107103
 3.7%
Pacific Islander00
White199159
 20.1%
Two or More Races7242
 41.7%
% Free/Discounted Lunch Recipients10.2%8.9%
 1.3%


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Frequently Asked Questions about Oster Elementary

In the 2022-23 school year, 638 students attended Oster Elementary.

Students at Oster Elementary are 51% Asian, 25% White, 16% Hispanic, 7% Two or more races, 1% African American.

Students who attend Oster Elementary usually go on to attend:

Middle : Dartmouth Middle

Yes! Oster Elementary is one of the best elementary schools in the state. It ranks 250th of 5868 California elementary schools.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education. Attendance Areas provided by ATTOM.

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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