Ontario Center

Summary:

Ontario Center is an elementary school in Ontario, CA that serves 548 students in grades K-5. It is part of the Cucamonga Elementary District, which is ranked 1375 out of 1568 districts in California and has a 1-star rating from SchoolDigger. Over the past several years, Ontario Center has consistently ranked in the bottom 20% of California elementary schools, with a 1-star rating for most years.

Ontario Center faces significant challenges, including high chronic absenteeism rates that have risen from 9.7% in 2018-2019 to 34.5% in 2021-2022, much higher than the state average and nearby schools. The school's test scores are consistently lower than state and district averages across all grade levels and subject areas, with only 22.84% of students proficient or better in ELA in 2023-2024, compared to 27.17% for the Cucamonga Elementary District and 47.04% statewide. Ontario Center also struggles to effectively serve its Hispanic, English Learner, and low-income students, ranking in the bottom 20% of California schools for these subgroups.

In comparison, the nearby Coyote Canyon Elementary, which is part of the Central Elementary District, ranks in the top 25% of California elementary schools and has significantly higher test scores than Ontario Center. This suggests that the challenges faced by Ontario Center may be unique, and that a comprehensive review and improvement plan is needed to address the school's declining performance and provide a high-quality education for all students.


Detail:

Public K-5

 835 North Center Ave.
       Ontario, CA  91764-4841


(909) 948-3044

District: Cucamonga Elementary

SchoolDigger Rank:
4887th of 5,862 California Elementary Schools

Per Pupil Expenditures:  $7,269 Help


Students who attend Ontario Center usually attend:

Middle:    Rancho Cucamonga Middle
High:    Colony High

Student/teacher ratio:  21.3 Help
Number of students:  548

Racial breakdown:

Hispanic:
57.8%
African American:
20.8%
White:
12.0%
more

Free/discounted lunch recipients:  62.6% Help


 See top rated California elementary schools

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Performance Trends
Help
Compare Details Ontario Center ranks worse than 83.4% of elementary schools in California. It also ranks 2nd among 3 ranked elementary schools in the Cucamonga Elementary School District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 19.74. (See more...)
Help
Chronic absenteeism in a 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 Ontario Center is diverse. Racial makeup is: Hispanic (57.8%), African American (20.8%), White (12%). (See more...)
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Compare Details 62.6% of students are receiving a free or discounted lunch. This is the lowest percentage in the Cucamonga Elementary School District. (See more...)
Teachers
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Compare Details The student/teacher ratio at Ontario Center is 21.3, which is the highest among 3 elementary schools in the Cucamonga Elementary School District! (See more...)
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Compare Ontario Center employs 25.6 full-time teachers.
Finance
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Compare Details The average total spent per student at Ontario Center is $7,269, which is the highest among 3 elementary schools in the Cucamonga Elementary School District!
Schooldigger 2024 Rankings:

Ontario Center:

SchoolDigger ranks Ontario Center 4887th of 5862 California public elementary schools. (See Ontario Center 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:


Cucamonga Elementary:

SchoolDigger ranks Cucamonga Elementary 1375th of 1568 California school districts. (See district ranking list.)


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Rank History for Ontario Center

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Compare

Rank History for all students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2004 37.08 2801st 4809 41.8%
2005 50.98 2142nd 4822 55.6%
2006 47.98 2272nd 4818 52.8%
2007 45.90 2565th 5113 49.8%
2008 38.90 3003rd 5113 41.3%
2009 38.84 3121st 5193 39.9%
2010 48.04 2689th 5314 49.4%
2011 48.25 2708th 5377 49.6%
2012 46.61 2840th 5390 47.3%
2013 40.77 3268th 5530 40.9%
2015 26.24 4006th 5611 28.6%
2016 28.13 3920th 5614 30.2%
2017 28.59 3950th 5692 30.6%
2018 36.60 3365th 5662 40.6%
2019 35.39 3504th 5789 39.5%
2022 19.43 4915th 5883 16.5%
2023 19.41 4929th 5874 16.1%
2024 19.74 4887th 5862 16.6%
See the entire list of California Elementary School Rankings!

Rank History for English Language Learner students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2023 28.23 2656th 3250 18.3%
See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for Special Education students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2023 41.68 1164th 2420 51.9%
2024 31.07 1759th 2634 33.2%
See the entire list of Best California Elementary Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 46.20 2599th 5084 48.9%
2019 42.54 2931st 5173 43.3%
2022 24.73 4268th 5264 18.9%
2023 20.16 4696th 5374 12.6%
2024 20.07 4774th 5511 13.4%
See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 38.17 3194th 5413 41.0%
2019 31.95 3671st 5492 33.2%
2022 21.66 4546th 5635 19.3%
2023 23.55 4376th 5617 22.1%
2024 23.41 4390th 5605 21.7%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for Disabled students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2022 31.26 1437th 2227 35.5%
See the entire list of Best California Elementary Schools for Disabled Students!

Rank History for Male students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 35.10 3337th 5431 38.6%
2019 39.17 3094th 5510 43.8%
2022 18.92 4810th 5663 15.1%
2023 16.99 4996th 5650 11.6%
2024 18.32 4873rd 5636 13.5%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for African American students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 75.97 108th 700 84.6%
2019 57.54 256th 747 65.7%
2022 51.68 246th 663 62.9%
2023 57.87 220th 662 66.8%
2024 42.80 294th 593 50.4%
See the entire list of Best California Elementary Schools for African American Students!

Rank History for Hispanic students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2018 43.82 2627th 4830 45.6%
2019 45.34 2584th 4963 47.9%
2022 24.08 4183rd 5084 17.7%
2023 21.90 4337th 5098 14.9%
2024 30.72 3687th 5102 27.7%
See the entire list of Best California Elementary Schools for Hispanic Students!

Rank History for White students at Ontario Center

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2023 19.13 2246th 2662 15.6%
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.

Ontario Center 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 Ontario Center

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1991 192 126 20 218 1 n/a n/a 0 557
1992 246 105 23 236 1 n/a n/a 0 611
1993 232 121 22 272 1 n/a n/a 0 648
1994 250 141 33 197 0 n/a n/a 0 621
1995 190 131 20 183 0 n/a n/a 0 524
1996 190 131 20 183 0 n/a n/a 0 524
1997 159 151 24 227 1 n/a n/a 0 562
1998 166 170 29 228 0 n/a n/a 0 593
1999 173 153 29 206 0 n/a n/a 0 561
2000 177 179 28 258 0 n/a n/a 0 642
2001 154 174 40 258 2 n/a n/a 0 628
2002 150 150 69 351 3 n/a n/a 2 725
2003 150 150 69 351 3 n/a n/a 2 725
2004 143 162 69 357 2 n/a n/a 7 740
2005 123 149 76 392 2 n/a n/a 26 768
2006 104 139 86 386 2 n/a n/a 55 772
2007 106 139 91 357 3 n/a n/a 44 740
2008 110 118 92 312 4 n/a n/a 0 636
2009 97 126 85 329 3 3 88 0 731
2010 102 123 82 388 2 8 25 0 730
2011 82 146 72 385 2 9 29 0 725
2012 106 134 74 378 4 4 27 0 727
2013 84 149 68 415 3 4 28 0 751
2014 75 152 54 392 1 2 22 0 698
2015 73 143 52 412 3 1 20 0 704
2016 92 138 51 414 3 5 8 0 711
2017 75 128 49 392 3 9 6 0 662
2018 73 125 40 382 3 3 7 0 633
2019 65 128 31 363 2 3 10 0 602
2020 76 126 30 346 3 3 9 0 593
2021 68 107 33 317 2 4 10 0 541
2022 64 121 30 338 2 0 23 0 578
2023 66 114 28 317 2 0 21 0 548

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 Ontario Center

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1991 557 21.0 26.5 n/a
1992 611 21.3 28.6 37.5
1993 648 23.5 27.6 39.4
1994 621 25.0 24.8 34
1995 524 19.5 26.9 37.8
1996 524 19.5 26.9 37.8
1997 562 25.5 22.0 60.7
1998 593 33.0 18.0 64.8
1999 561 32.0 17.5 60.1
2000 642 33.0 19.5 59.7
2001 628 32.0 19.6 56.5
2002 725 34.0 21.3 52.3
2003 725 34.0 21.3 52.3
2004 740 36.0 20.6 62.8
2005 768 36.0 21.3 64
2006 772 34.0 22.7 81.7
2007 740 33.0 22.4 66.2
2008 636 32.9 19.3 67.9
2009 731 31.0 22.2 62.7
2010 730 35.0 20.8 67.7
2011 725 n/a n/a 61.8
2012 727 28.0 25.9 n/a
2013 751 32.0 23.4 67.4
2014 698 25.0 27.9 57.3
2015 704 28.0 25.1 68.8
2016 711 29.0 24.5 69.2
2017 662 28.0 23.6 65
2018 633 29.0 21.8 66.5
2019 602 27.0 22.2 64.6
2020 593 n/a n/a 66.4
2021 541 25.0 21.6 59.1
2022 578 27.0 21.4 57.1
2023 548 25.6 21.3 62.6

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 Ontario Center

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1991 557 21.0 26.5 n/a
1992 611 21.3 28.6 37.5
1993 648 23.5 27.6 39.4
1994 621 25.0 24.8 34
1995 524 19.5 26.9 37.8
1996 524 19.5 26.9 37.8
1997 562 25.5 22.0 60.7
1998 593 33.0 18.0 64.8
1999 561 32.0 17.5 60.1
2000 642 33.0 19.5 59.7
2001 628 32.0 19.6 56.5
2002 725 34.0 21.3 52.3
2003 725 34.0 21.3 52.3
2004 740 36.0 20.6 62.8
2005 768 36.0 21.3 64
2006 772 34.0 22.7 81.7
2007 740 33.0 22.4 66.2
2008 636 32.9 19.3 67.9
2009 731 31.0 22.2 62.7
2010 730 35.0 20.8 67.7
2011 725 n/a n/a 61.8
2012 727 28.0 25.9 n/a
2013 751 32.0 23.4 67.4
2014 698 25.0 27.9 57.3
2015 704 28.0 25.1 68.8
2016 711 29.0 24.5 69.2
2017 662 28.0 23.6 65
2018 633 29.0 21.8 66.5
2019 602 27.0 22.2 64.6
2020 593 n/a n/a 66.4
2021 541 25.0 21.6 59.1
2022 578 27.0 21.4 57.1
2023 548 25.6 21.3 62.6

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

Ontario Center

Help
Compare
YearCompletely ImmunizedReligious ExemptionMedical ExemptionConditionalPolioHepatitis BVaricellaDTPMMR
201296.0%2.0%1.0%1.0%97.0%97.0%97.0%97.0%97.0%
201399.0%0.0%0.0%1.0%99.0%100.0%99.0%99.0%99.0%
201486.0%0.0%0.0%14.0%95.0%91.0%99.0%91.0%99.0%
201582.0%2.0%1.0%15.0%91.0%85.0%96.0%89.0%83.0%
201692.0%0.0%0.0%8.0%96.0%98.0%100.0%95.0%99.0%
201796.0%0.0%0.0%0.0%98.0%≥99.0%≥99.0%96.0%96.0%
201884.0%0.0%4.0%0.0%92.0%95.0%98.0%95.0%≥99.0%
201991.0%3.0%0.0%95.0%96.0%97.0%91.0%94.0%
202180.8%0.0%0.0%89.7%93.6%87.2%84.6%
202282.0%0.0%0.0%88.0%97.0%84.0%87.0%98.0%

Data source: California Department of Public Health
Finances

Per Pupil Expenditures for Ontario Center

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YearTotal Expenditures Per Pupil
2018 $7,269

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

Impact of COVID-19 on Ontario Center

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 3504th of 5789 Elementary schoolsRanks 4929th of 5874 Elementary schools
 23.4%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade English Language Arts/Literacy (Ontario Center)45.429.1
 16.3%
   3rd Grade English Language Arts/Literacy (Cucamonga Elementary)40.227.6
 12.6%
   3rd Grade English Language Arts/Literacy (California)48.543
 5.6%
3rd Grade Mathematics (Ontario Center)40.228.2
 12%
   3rd Grade Mathematics (Cucamonga Elementary)35.524.3
 11.2%
   3rd Grade Mathematics (California)50.245.1
 5.1%
4th Grade English Language Arts/Literacy (Ontario Center)33.722.9
 10.8%
   4th Grade English Language Arts/Literacy (Cucamonga Elementary)3425.3
 8.7%
   4th Grade English Language Arts/Literacy (California)49.543.7
 5.7%
4th Grade Mathematics (Ontario Center)23.517.7
 5.8%
   4th Grade Mathematics (Cucamonga Elementary)25.517.9
 7.7%
   4th Grade Mathematics (California)44.940.8
 4.1%
5th Grade English Language Arts/Literacy (Ontario Center)48.923.5
 25.3%
   5th Grade English Language Arts/Literacy (Cucamonga Elementary)45.826.8
 18.9%
   5th Grade English Language Arts/Literacy (California)51.746.7
 5%
5th Grade Mathematics (Ontario Center)29.913.7
 16.2%
   5th Grade Mathematics (Cucamonga Elementary)25.511.3
 14.2%
   5th Grade Mathematics (California)3833.4
 4.6%
5th Grade Science (Ontario Center)30.213.7
 16.5%
   5th Grade Science (Cucamonga Elementary)24.515.3
 9.3%
   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 Students602548
 9%
African American128114
 10.9%
American Indian22
Asian3128
 9.7%
Hispanic363317
 12.7%
Pacific Islander30
 100%
White6566
 1.5%
Two or More Races1021
 110%
% Free/Discounted Lunch Recipients64.6%62.6%
 2%


Schools Near Ontario Center









Frequently Asked Questions about Ontario Center

Students at Ontario Center are 58% Hispanic, 21% African American, 12% White, 5% Asian, 4% Two or more races.

In the 2022-23 school year, 548 students attended Ontario Center.

Students who attend Ontario Center usually go on to attend:

Middle : Rancho Cucamonga Middle
High : Colony High

Ontario Center ranks in the bottom 16.6% of 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.

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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