Colony High

Summary:

Colony High is a public high school located in Ontario, California, serving grades 9-12 with a total enrollment of 2,122 students. It is part of the Chaffey Joint Union High School District, which is ranked 361 out of 1,560 districts in California and has a 4-star rating from SchoolDigger.

Colony High has a diverse student population, with a higher percentage of Hispanic (69.84%) and African American (10.51%) students compared to nearby schools. Academically, the school performs better than the district and state averages in English Language Arts (ELA) and Mathematics proficiency, with 65.57% of 11th-grade students proficient or better in ELA and 25.16% in Mathematics. Additionally, Colony High has consistently high graduation rates, with a 92.5% four-year graduation rate in 2022-2023, which is higher than the district and state averages. However, the school has experienced a significant increase in chronic absenteeism, from 9.8% in 2018-2019 to 19.6% in 2022-2023, which is an area of concern.

While Colony High outperforms the district and state averages, it lags behind some nearby schools, such as Eleanor Roosevelt High, which had 70.12% of 11th-grade students proficient or better in ELA and 49.81% in Mathematics. Additionally, the school's performance varies across different student subgroups, with African American and Hispanic students performing better than the state averages, while Asian and White students perform below the state averages. The school's high percentage of students (70.78%) eligible for free or reduced-price lunch may contribute to these academic challenges. The success of the Chaffey District Online High School suggests that Colony High could benefit from expanding its online learning opportunities to provide more flexible and personalized learning experiences for its students.


Detail:

Public 9-12

 3850 E. Riverside Dr.
       Ontario, CA  91761-2603


(909) 930-2929

District: Chaffey Joint Union High

SchoolDigger Rank:
699th of 2,346 California High Schools

Per Pupil Expenditures:  $9,989 Help


Feeder schools for Colony High:

Elementary:    Creek View Elementary
    Del Norte Elementary
    Mountain View Elementary
    Ontario Center
    More...
Middle:    Grace Yokley Junior High
    Rancho Cucamonga Middle

Student/teacher ratio:  24.1 Help
Number of students:  2,122

Racial breakdown:

Hispanic:
69.8%
African American:
10.5%
Asian:
7.9%
more

Free/discounted lunch recipients:  70.8% Help


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Performance Trends
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Compare Details Colony High ranks better than 70.2% of high schools in California. It also ranks 7th among 10 ranked high schools in the Chaffey Joint Union High School District. (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 57.49. (See more...)
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The Adjusted Cohort Graduation Rate (ACGR) measures the percentage of Colony High freshmen who graduate within four years, adjusting for students who transfer in or out.
Help
The high school dropout rate measures the percentage of students who do not complete their high school education.
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
Help
Compare Details Racial makeup is: Hispanic (69.8%), African American (10.5%), Asian (7.9%). (See more...)
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Compare Details 70.8% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Colony High is 24.1, which is the 5th best among 10 high schools in the Chaffey Joint Union High School District. (See more...)
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Compare Colony High employs 87.9 full-time teachers.
Finance
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Compare Details The average total spent per student at Colony High is $9,989, which is the 4th highest among 10 high schools in the Chaffey Joint Union High School District.
Schooldigger 2023 Rankings:

Colony High:

SchoolDigger ranks Colony High 699th of 2346 California public high schools. (See Colony High in the ranking list.)

High School Test Score Ratings by Student Subgroup:


Multi-racial students:
English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Homeless students:
Female students:
Male students:
Asian students:
African American students:
Hispanic students:
White students:


Chaffey Joint Union High:

SchoolDigger ranks Chaffey Joint Union High 361st of 1560 California school districts. (See district ranking list.)


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Rank History for Colony High

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Rank History for all students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2004 43.64 616th 1653 62.7%
2005 43.30 731st 1901 61.5%
2006 42.19 789th 1968 59.9%
2007 49.14 670th 2063 67.5%
2008 46.63 749th 2117 64.6%
2009 53.28 655th 2238 70.7%
2010 50.76 741st 2281 67.5%
2011 56.52 628th 2367 73.5%
2012 56.28 644th 2354 72.6%
2013 45.16 921st 2426 62.0%
2015 58.59 777th 1994 61.0%
2016 56.07 877th 2039 57.0%
2017 57.76 843rd 2021 58.3%
2018 73.91 517th 2017 74.4%
2019 63.23 669th 2133 68.6%
2021 72.14 324th 1290 74.9%
2022 61.37 685th 2123 67.7%
2023 57.49 694th 2335 70.3%
See the entire list of California High School Rankings!

Rank History for Multi-racial students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2019 18.76 348th 422 17.5%
2022 31.18 381st 515 26.0%
2023 39.34 419th 780 46.3%
See the entire list of Best California High Schools for Multi-racial Students!

Rank History for English Language Learner students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 43.03 393rd 938 58.1%
2019 47.20 326th 941 65.4%
2022 44.09 424th 1044 59.4%
2023 52.10 237th 1315 82.0%
See the entire list of Best California High Schools for English Language Learner Students!

Rank History for Special Education students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2023 44.25 594th 1539 61.4%
See the entire list of Best California High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 76.71 372nd 1862 80.0%
2019 67.15 514th 1937 73.5%
2021 78.06 203rd 1126 82.0%
2022 66.75 507th 1943 73.9%
2023 65.69 503rd 2237 77.5%
See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Homeless students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2022 62.25 89th 290 69.3%
2023 67.58 99th 417 76.3%
See the entire list of Best California High Schools for Homeless Students!

Rank History for Female students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 72.86 484th 1760 72.5%
2019 61.20 619th 1833 66.2%
2021 75.20 243rd 1054 76.9%
2022 60.94 601st 1858 67.7%
2023 58.13 640th 2106 69.6%
See the entire list of Best California High Schools for Female Students!

Rank History for Disabled students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 34.95 613th 1052 41.7%
2019 30.50 759th 1117 32.1%
2021 15.85 551st 555 0.7%
2022 43.82 495th 1161 57.4%
See the entire list of Best California High Schools for Disabled Students!

Rank History for Male students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 70.00 531st 1834 71.0%
2019 58.90 680th 1880 63.8%
2021 57.90 427th 1122 61.9%
2022 57.63 690th 1916 64.0%
2023 54.22 717th 2195 67.3%
See the entire list of Best California High Schools for Male Students!

Rank History for Asian students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 58.45 285th 581 50.9%
2019 55.98 292nd 582 49.8%
2022 56.89 280th 581 51.8%
2023 38.47 478th 727 34.3%
See the entire list of Best California High Schools for Asian Students!

Rank History for African American students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 55.54 222nd 582 61.9%
2019 60.03 185th 592 68.8%
2022 60.39 157th 522 69.9%
2023 61.02 213th 713 70.1%
See the entire list of Best California High Schools for African American Students!

Rank History for Hispanic students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 83.24 261st 1742 85.0%
2019 68.71 461st 1814 74.6%
2022 68.72 459th 1861 75.3%
2023 65.41 496th 2132 76.7%
See the entire list of Best California High Schools for Hispanic Students!

Rank History for White students at Colony High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 68.10 401st 1173 65.8%
2019 70.21 335th 1222 72.6%
2022 51.38 575th 1204 52.2%
2023 41.88 716th 1424 49.7%
See the entire list of Best California High 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.

Colony High 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 Colony High

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
2002 263 189 61 488 6 n/a n/a 18 1025
2003 263 189 61 488 6 n/a n/a 18 1025
2004 351 328 112 762 8 n/a n/a 33 1594
2005 459 422 154 1103 8 n/a n/a 39 2185
2006 444 437 164 1202 9 n/a n/a 67 2323
2007 371 385 158 1291 9 n/a n/a 51 2265
2008 352 386 151 1333 8 n/a n/a 0 2230
2009 344 371 136 1388 9 7 55 0 2310
2010 353 366 131 1420 7 8 0 0 2285
2011 329 353 124 1416 4 10 24 0 2260
2012 271 333 126 1445 8 13 24 0 2220
2013 253 265 117 1472 9 13 32 0 2161
2014 243 262 121 1513 10 12 41 0 2202
2015 211 236 118 1465 4 10 35 0 2079
2016 211 250 121 1500 3 11 39 0 2135
2017 187 237 128 1480 3 6 49 0 2090
2018 177 243 128 1558 6 8 53 0 2173
2019 186 237 132 1564 8 12 52 0 2191
2020 175 230 141 1562 9 8 53 0 2178
2021 168 188 156 1578 11 12 48 1 2162
2022 168 201 151 1532 7 15 57 3 2134
2023 154 223 167 1482 6 19 69 2 2122

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 Colony High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2002 1025 45.6 22.5 14
2003 1025 45.6 22.5 14
2004 1594 62.9 25.3 18.8
2005 2185 84.9 25.7 8.4
2006 2323 95.6 24.3 20.2
2007 2265 93.6 24.2 28.2
2008 2230 104.1 21.4 30.6
2009 2310 90.3 21.9 39.7
2010 2285 88.2 25.9 46.7
2011 2260 n/a n/a 51.7
2012 2220 83.3 26.6 n/a
2013 2161 86.2 25.0 57.6
2014 2202 86.3 25.4 60.9
2015 2079 85.0 24.4 61.9
2016 2135 84.0 25.4 72.7
2017 2090 90.5 23.0 71.1
2018 2173 91.9 23.6 74.3
2019 2191 92.8 23.6 73.2
2020 2178 n/a n/a 73
2021 2162 89.9 24.0 74.1
2022 2134 89.0 23.9 74.4
2023 2122 87.9 24.1 70.8

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 Colony High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2002 1025 45.6 22.5 14
2003 1025 45.6 22.5 14
2004 1594 62.9 25.3 18.8
2005 2185 84.9 25.7 8.4
2006 2323 95.6 24.3 20.2
2007 2265 93.6 24.2 28.2
2008 2230 104.1 21.4 30.6
2009 2310 90.3 21.9 39.7
2010 2285 88.2 25.9 46.7
2011 2260 n/a n/a 51.7
2012 2220 83.3 26.6 n/a
2013 2161 86.2 25.0 57.6
2014 2202 86.3 25.4 60.9
2015 2079 85.0 24.4 61.9
2016 2135 84.0 25.4 72.7
2017 2090 90.5 23.0 71.1
2018 2173 91.9 23.6 74.3
2019 2191 92.8 23.6 73.2
2020 2178 n/a n/a 73
2021 2162 89.9 24.0 74.1
2022 2134 89.0 23.9 74.4
2023 2122 87.9 24.1 70.8

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.
Finances

Per Pupil Expenditures for Colony High

Help

YearTotal Expenditures Per Pupil
2018 $9,989

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

Impact of COVID-19 on Colony High

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 669th of 2133 High schoolsRanks 694th of 2335 High schools
 1.6%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
11th Grade English Language Arts/Literacy (Colony High)60.265.6
 5.3%
   11th Grade English Language Arts/Literacy (Chaffey Joint Union High)66.467.5
 1%
   11th Grade English Language Arts/Literacy (California)57.355.4
 1.9%
11th Grade Mathematics (Colony High)34.525.2
 9.4%
   11th Grade Mathematics (Chaffey Joint Union High)38.434.3
 4.1%
   11th Grade Mathematics (California)32.227.4
 4.9%
12th Grade Science (Colony High)18.419.8
 1.3%
   12th Grade Science (Chaffey Joint Union High)23.128.5
 5.4%
   12th Grade Science (California)25.626.9
 1.3%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students21912122
 3.1%
African American237223
 5.9%
American Indian86
 25%
Asian132167
 26.5%
Hispanic15641482
 5.2%
Pacific Islander1219
 58.3%
White186154
 17.2%
Two or More Races5269
 32.7%
% Free/Discounted Lunch Recipients73.2%70.8%
 2.4%


Schools Near Colony High









Frequently Asked Questions about Colony High

Colony High is fed by the following schools:

Elementary : Creek View Elementary
Elementary : Del Norte Elementary
Elementary : Mountain View Elementary
Elementary : Ontario Center
Elementary : Perdew Elementary
Elementary : Ranch View Elementary
Middle : Grace Yokley Junior High
Middle : Rancho Cucamonga Middle

In the 2022-23 school year, 2,122 students attended Colony High.

Students at Colony High are 70% Hispanic, 11% African American, 8% Asian, 7% White, 3% Two or more races.

Colony High ranks 699th of 2346 California high schools. SchoolDigger rates this school 4 stars out of 5.


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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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