Chaffey High High School
1245 North Euclid Ave
Ontario CA, 91762, San Bernardino County
Phone: 909-988-5560
Ranking: 
(845 out of 1,403, bottom 40%)*
(845 out of 1,403, bottom 40%)*Type: Regular High School
Status: Currently Operational
Grade: Grade 9 to Grade 12
School District: Chaffey Joint Union High School District
Title I Eligible School: Yes School-Wide Title I: NA
Magnet: NA
Charter: NA
Shared-Time School: NA
Students and Teachers
| 2013-2014 | 2012-2013 | 2011-2012 | 2010-2011 | 2009-2010 | 2008-2009 | 2007-2008 | ||||||||
| Amount | % | Amount | % | Amount | % | Amount | % | Amount | % | Amount | % | Amount | % | |
| Total Teachers: | 138 | 140 | 139 | NA | NA | 142 | 142 | 157 | ||||||
| Total Students: | 3,596 | 3,571 | 3,601 | 3,720 | 3,645 | 3,397 | 3,264 | |||||||
| Grade 9: | 924 | 25.7% | 933 | 26.1% | 839 | 23.3% | 923 | 24.8% | 1,002 | 27.5% | 987 | 29.1% | 885 | 27.1% |
| Grade 10: | 940 | 26.1% | 832 | 23.3% | 910 | 25.3% | 981 | 26.4% | 958 | 26.3% | 881 | 25.9% | 902 | 27.6% |
| Grade 11: | 825 | 22.9% | 893 | 25.0% | 914 | 25.4% | 949 | 25.5% | 854 | 23.4% | 849 | 25.0% | 743 | 22.8% |
| Grade 12: | 907 | 25.2% | 913 | 25.6% | 938 | 26.0% | 866 | 23.3% | 831 | 22.8% | 680 | 20.0% | 734 | 22.5% |
| Ungraded: | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Student By Gender: | ||||||||||||||
| Male: | 1,839 | 51.1% | 1,844 | 51.6% | 1,786 | 49.6% | 1,857 | 49.9% | 1,820 | 49.9% | 1,729 | 50.9% | 1,643 | 50.3% |
| Female: | 1,757 | 48.9% | 1,727 | 48.4% | 1,815 | 50.4% | 1,863 | 50.1% | 1,825 | 50.1% | 1,668 | 49.1% | 1,617 | 49.5% |
| Student By Races: | ||||||||||||||
| American Indian/Alaska Native: | 11 | 0.3% | 6 | 0.2% | 7 | 0.2% | 9 | 0.2% | 16 | 0.4% | 8 | 0.2% | 13 | 0.4% |
| Asian: | 49 | 1.4% | 59 | 1.7% | 63 | 1.7% | 72 | 1.9% | 67 | 1.8% | 58 | 1.7% | 71 | 2.2% |
| Hispanic: | 3,149 | 87.6% | 3,090 | 86.5% | 3,121 | 86.7% | 3,181 | 85.5% | 3,064 | 84.1% | 2,773 | 81.6% | 2,690 | 82.4% |
| Black: | 95 | 2.6% | 94 | 2.6% | 99 | 2.7% | 104 | 2.8% | 120 | 3.3% | 122 | 3.6% | 120 | 3.7% |
| White: | 215 | 6.0% | 244 | 6.8% | 280 | 7.8% | 311 | 8.4% | 340 | 9.3% | 346 | 10.2% | 370 | 11.3% |
| Hawaiian Native/Pacific Islander: | 13 | 0.4% | 18 | 0.5% | 21 | 0.6% | 24 | 0.6% | 24 | 0.7% | 16 | 0.5% | NA | NA |
| Two or More Races: | 64 | 1.8% | 60 | 1.7% | 10 | 0.3% | 19 | 0.5% | 14 | 0.4% | 74 | 2.2% | NA | NA |
| Lunch Program: | ||||||||||||||
| Free Lunch Program Eligible: | 2,539 | 70.6% | 2,443 | 68.4% | NA | NA | 2,349 | 63.1% | 1,879 | 51.6% | 1,445 | 42.5% | 916 | 28.1% |
| Reduced-Price Lunch Program Eligible: | 358 | 10.0% | 331 | 9.3% | NA | NA | 213 | 5.7% | 301 | 8.3% | 344 | 10.1% | 200 | 6.1% |
| Student-Teacher Ratio: | 26.02 | 25.58 | 25.89 | NA | NA | 25.60 | 21.10 | 20.80 | ||||||
Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| CAHSEE | ||||||
| 2005 | English Language Arts | 10th Grade | % met std | 68% | 76% | 76% |
| 2006 | English Language Arts | 10th Grade | % met std | 68% | 75% | 77% |
| 2007 | English Language Arts | 10th Grade | % met std | 69% | 78% | 77% |
| 2008 | English Language Arts | 10th Grade | % met std | 73% | 80% | 79% |
| 2009 | English Language Arts | 10th Grade | % met std | 72.0% | 80.0% | 79.0% |
| 2010 | English Language Arts | 10th Grade | % met std | 75.0% | 81.0% | 81.0% |
| 2011 | English Language Arts | 10th Grade | % met std | 76.0% | 84.0% | 82.0% |
| 2012 | English Language Arts | 10th Grade | % met std | 79.0% | 85.0% | 83.0% |
| 2013 | English Language Arts | 10th Grade | % met std | 76.0% | 86.0% | 83.0% |
| 2005 | Math | 10th Grade | % met std | 65% | 75% | 74% |
| 2006 | Math | 10th Grade | % met std | 69% | 76% | 76% |
| 2007 | Math | 10th Grade | % met std | 65% | 75% | 76% |
| 2008 | Math | 10th Grade | % met std | 73% | 79% | 78% |
| 2009 | Math | 10th Grade | % met std | 76.0% | 81.0% | 80.0% |
| 2010 | Math | 10th Grade | % met std | 78.0% | 82.0% | 81.0% |
| 2011 | Math | 10th Grade | % met std | 75.0% | 83.0% | 83.0% |
| 2012 | Math | 10th Grade | % met std | 76.0% | 85.0% | 84.0% |
| 2013 | Math | 10th Grade | % met std | 79.0% | 86.0% | 84.0% |
| 2009 | English Language Arts | 11th Grade | % met std | 30.0% | 36.0% | 38.0% |
| 2009 | Math | 11th Grade | % met std | 27.0% | 34.0% | 36.0% |
| 2009 | English Language Arts | 12th Grade | % met std | 21.0% | 30.0% | 27.0% |
| 2009 | Math | 12th Grade | % met std | 34.0% | 33.0% | 28.0% |
| 2009 | English Language Arts | All grades (HS) | % met std | 54.0% | 64.0% | 61.0% |
| 2009 | Math | All grades (HS) | % met std | 58.0% | 65.0% | 61.0% |
| STAR | ||||||
| 2004 | Algebra I | 10th Grade | Mean Scaled Score | 285.6 | 287.3 | 286.3 |
| 2005 | Algebra I | 10th Grade | Mean Scaled Score | 297.9 | 292.5 | 289.8 |
| 2006 | Algebra I | 10th Grade | Mean Scaled Score | 292.4 | 287.6 | 286.4 |
| 2007 | Algebra I | 10th Grade | Mean Scaled Score | 292 | 291.9 | 286.9 |
| 2008 | Algebra I | 10th Grade | Mean Scaled Score | 307.6 | 296.9 | 285.3 |
| 2009 | Algebra I | 10th Grade | Mean Scaled Score | 315 | 298.5 | 287.9 |
| 2010 | Algebra I | 10th Grade | Mean Scaled Score | 302.5 | 294.4 | 290.1 |
| 2011 | Algebra I | 10th Grade | Mean Scaled Score | 309.8 | 303.9 | 292.4 |
| 2012 | Algebra I | 10th Grade | Mean Scaled Score | 296.3 | 296.3 | 292.4 |
| 2013 | Algebra I | 10th Grade | Mean Scaled Score | 298.9 | 292.8 | 294.7 |
| 2004 | Algebra II | 10th Grade | Mean Scaled Score | 320.7 | 339.2 | 329.2 |
| 2005 | Algebra II | 10th Grade | Mean Scaled Score | 313.6 | 346.5 | 330.6 |
| 2006 | Algebra II | 10th Grade | Mean Scaled Score | 339.1 | 349.9 | 328.6 |
| 2007 | Algebra II | 10th Grade | Mean Scaled Score | 343.3 | 351.2 | 328.8 |
| 2008 | Algebra II | 10th Grade | Mean Scaled Score | 336.8 | 367.4 | 331.9 |
| 2009 | Algebra II | 10th Grade | Mean Scaled Score | 344.5 | 370.1 | 332.5 |
| 2010 | Algebra II | 10th Grade | Mean Scaled Score | 359.8 | 372 | 339.6 |
| 2011 | Algebra II | 10th Grade | Mean Scaled Score | 379.8 | 383 | 343.1 |
| 2012 | Algebra II | 10th Grade | Mean Scaled Score | 378.5 | 385.1 | 343.8 |
| 2013 | Algebra II | 10th Grade | Mean Scaled Score | 361.7 | 375.2 | 335.6 |
| 2004 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 308.6 | 320.5 | 324.7 |
| 2005 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 302.3 | 320.4 | 325.5 |
| 2006 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 316 | 325.9 | 326.7 |
| 2007 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 316.4 | 328.2 | 327.7 |
| 2008 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 324.5 | 333.5 | 331.5 |
| 2009 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 320.5 | 332.8 | 333 |
| 2010 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 328.3 | 338 | 336.7 |
| 2011 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 326 | 343.5 | 340.1 |
| 2012 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 324 | 342.6 | 342.7 |
| 2013 | Biology/Life Sciences | 10th Grade | Mean Scaled Score | 323.0 | 336.4 | 341.4 |
| 2009 | Chemistry | 10th Grade | Mean Scaled Score | 356.5 | 360.9 | 344 |
| 2010 | Chemistry | 10th Grade | Mean Scaled Score | 351.9 | 360.9 | 347.1 |
| 2011 | Chemistry | 10th Grade | Mean Scaled Score | 364.7 | 364.2 | 349.6 |
| 2012 | Chemistry | 10th Grade | Mean Scaled Score | 362.4 | 368.2 | 351.5 |
| 2013 | Chemistry | 10th Grade | Mean Scaled Score | 352.1 | 356.9 | 350.6 |
| 2005 | Earth Science | 10th Grade | Mean Scaled Score | 303.1 | 314.2 | 309.2 |
| 2006 | Earth Science | 10th Grade | Mean Scaled Score | 304.5 | 306.6 | 310.1 |
| 2007 | Earth Science | 10th Grade | Mean Scaled Score | 308 | 316.2 | 310.9 |
| 2009 | Earth Science | 10th Grade | Mean Scaled Score | 334.4 | 328.7 | 315.7 |
| 2010 | Earth Science | 10th Grade | Mean Scaled Score | 318 | 325.9 | 321.5 |
| 2012 | Earth Science | 10th Grade | Mean Scaled Score | 302.3 | 317.2 | 330.5 |
| 2013 | Earth Science | 10th Grade | Mean Scaled Score | 344.8 | 344.3 | 330.0 |
| 2004 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 309.2 | 325.8 | 328.1 |
| 2005 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 309.5 | 325.2 | 328.4 |
| 2006 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 311.2 | 326.5 | 328.5 |
| 2007 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 314.5 | 330.9 | 331.3 |
| 2008 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 319 | 337.7 | 336.2 |
| 2009 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 327.3 | 339.3 | 338.1 |
| 2010 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 329 | 342.2 | 341.4 |
| 2011 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 329.8 | 346.5 | 346.4 |
| 2012 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 333.7 | 346.7 | 348.4 |
| 2013 | English Language Arts Standards | 10th Grade | Mean Scaled Score | 338.7 | 351.1 | 352.4 |
| 2004 | Geometry | 10th Grade | Mean Scaled Score | 315.8 | 310.7 | 302.2 |
| 2005 | Geometry | 10th Grade | Mean Scaled Score | 330.7 | 311.7 | 300.1 |
| 2006 | Geometry | 10th Grade | Mean Scaled Score | 320.3 | 313.8 | 297.1 |
| 2007 | Geometry | 10th Grade | Mean Scaled Score | 325.6 | 310.6 | 291.8 |
| 2008 | Geometry | 10th Grade | Mean Scaled Score | 314.7 | 305.6 | 291.4 |
| 2009 | Geometry | 10th Grade | Mean Scaled Score | 324.6 | 305.1 | 293.6 |
| 2010 | Geometry | 10th Grade | Mean Scaled Score | 317.2 | 309.5 | 296.7 |
| 2011 | Geometry | 10th Grade | Mean Scaled Score | 327.8 | 321.6 | 298.5 |
| 2012 | Geometry | 10th Grade | Mean Scaled Score | 311.2 | 312.6 | 299.7 |
| 2013 | Geometry | 10th Grade | Mean Scaled Score | 304.4 | 311.2 | 296.9 |
| 2006 | Science | 10th Grade | Mean Scaled Score | 319.8 | 333 | 326.7 |
| 2007 | Science | 10th Grade | Mean Scaled Score | 321.4 | 334.2 | 328.3 |
| 2008 | Science | 10th Grade | Mean Scaled Score | 330 | 342.9 | 337 |
| 2009 | Science | 10th Grade | Mean Scaled Score | 335.5 | 349.1 | 343.3 |
| 2010 | Science | 10th Grade | Mean Scaled Score | 340.7 | 352.4 | 348.1 |
| 2011 | Science | 10th Grade | Mean Scaled Score | 338.6 | 357.5 | 353.1 |
| 2012 | Science | 10th Grade | Mean Scaled Score | 340.4 | 357.2 | 357.3 |
| 2013 | Science | 10th Grade | Mean Scaled Score | 346.3 | 360.6 | 360.4 |
| 2012 | Summative High School Mathematics | 10th Grade | Mean Scaled Score | 378.6 | 405.4 | 400.4 |
| 2004 | World History | 10th Grade | Mean Scaled Score | 316.9 | 321.3 | 318.1 |
| 2005 | World History | 10th Grade | Mean Scaled Score | 311.9 | 324.8 | 320.6 |
| 2006 | World History | 10th Grade | Mean Scaled Score | 310 | 325.7 | 321.1 |
| 2007 | World History | 10th Grade | Mean Scaled Score | 317 | 331.6 | 323.3 |
| 2008 | World History | 10th Grade | Mean Scaled Score | 316.4 | 338 | 327.5 |
| 2009 | World History | 10th Grade | Mean Scaled Score | 315.8 | 339.8 | 331.5 |
| 2010 | World History | 10th Grade | Mean Scaled Score | 328.8 | 347.4 | 338.5 |
| 2011 | World History | 10th Grade | Mean Scaled Score | 325.4 | 351.5 | 343.5 |
| 2012 | World History | 10th Grade | Mean Scaled Score | 348.7 | 357.7 | 347 |
| 2013 | World History | 10th Grade | Mean Scaled Score | 344.2 | 359.7 | 347.9 |
| 2004 | Algebra I | 11th Grade | Mean Scaled Score | 286.6 | 281.3 | 279.3 |
| 2005 | Algebra I | 11th Grade | Mean Scaled Score | 292.1 | 284.3 | 282.8 |
| 2006 | Algebra I | 11th Grade | Mean Scaled Score | 290 | 279.1 | 278.8 |
| 2007 | Algebra I | 11th Grade | Mean Scaled Score | 293.8 | 284.4 | 279.5 |
| 2008 | Algebra I | 11th Grade | Mean Scaled Score | 294 | 286.1 | 277.7 |
| 2009 | Algebra I | 11th Grade | Mean Scaled Score | 304 | 286.9 | 280.4 |
| 2010 | Algebra I | 11th Grade | Mean Scaled Score | 293.4 | 281.8 | 282.3 |
| 2011 | Algebra I | 11th Grade | Mean Scaled Score | 298.4 | 286.8 | 285.2 |
| 2012 | Algebra I | 11th Grade | Mean Scaled Score | 296.7 | 288.4 | 284.9 |
| 2013 | Algebra I | 11th Grade | Mean Scaled Score | 283.5 | 282.2 | 287.4 |
| 2004 | Algebra II | 11th Grade | Mean Scaled Score | 300.1 | 294.7 | 288.9 |
| 2005 | Algebra II | 11th Grade | Mean Scaled Score | 288.3 | 300.2 | 288.6 |
| 2006 | Algebra II | 11th Grade | Mean Scaled Score | 298.9 | 296 | 286.8 |
| 2007 | Algebra II | 11th Grade | Mean Scaled Score | 299.4 | 305.5 | 288.5 |
| 2008 | Algebra II | 11th Grade | Mean Scaled Score | 301.4 | 306.1 | 288.2 |
| 2009 | Algebra II | 11th Grade | Mean Scaled Score | 302 | 307.6 | 290.4 |
| 2010 | Algebra II | 11th Grade | Mean Scaled Score | 316 | 309.6 | 294.1 |
| 2011 | Algebra II | 11th Grade | Mean Scaled Score | 324.6 | 317.6 | 296.7 |
| 2012 | Algebra II | 11th Grade | Mean Scaled Score | 336 | 325.5 | 299.7 |
| 2013 | Algebra II | 11th Grade | Mean Scaled Score | 332.3 | 317.8 | 294.6 |
| 2004 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 279.7 | 328 | 328.5 |
| 2005 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 292.9 | 325 | 329.7 |
| 2006 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 290.3 | 313.8 | 331.6 |
| 2007 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 314.8 | 341.9 | 335.3 |
| 2008 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 286.6 | 336 | 337.9 |
| 2009 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 299.8 | 353 | 343.3 |
| 2012 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 301.9 | 379.1 | 357.2 |
| 2013 | Biology/Life Sciences | 11th Grade | Mean Scaled Score | 314.5 | 365.4 | 357.9 |
| 2004 | Chemistry | 11th Grade | Mean Scaled Score | 325.7 | 322.1 | 319.7 |
| 2005 | Chemistry | 11th Grade | Mean Scaled Score | 324.2 | 324.5 | 321.9 |
| 2006 | Chemistry | 11th Grade | Mean Scaled Score | 324.6 | 325.7 | 320.7 |
| 2007 | Chemistry | 11th Grade | Mean Scaled Score | 323.5 | 326.5 | 323 |
| 2008 | Chemistry | 11th Grade | Mean Scaled Score | 326.8 | 330.6 | 320.9 |
| 2009 | Chemistry | 11th Grade | Mean Scaled Score | 325.7 | 334.2 | 323.5 |
| 2010 | Chemistry | 11th Grade | Mean Scaled Score | 326.8 | 334.4 | 326.9 |
| 2011 | Chemistry | 11th Grade | Mean Scaled Score | 326.6 | 339.5 | 330 |
| 2012 | Chemistry | 11th Grade | Mean Scaled Score | 332.3 | 342.4 | 332.5 |
| 2013 | Chemistry | 11th Grade | Mean Scaled Score | 337.2 | 340.0 | 334.4 |
| 2005 | Earth Science | 11th Grade | Mean Scaled Score | 305.3 | 320 | 315.5 |
| 2006 | Earth Science | 11th Grade | Mean Scaled Score | 300.6 | 316.1 | 314.9 |
| 2007 | Earth Science | 11th Grade | Mean Scaled Score | 315.8 | 325.2 | 316.3 |
| 2008 | Earth Science | 11th Grade | Mean Scaled Score | 346.6 | 338.3 | 319.7 |
| 2009 | Earth Science | 11th Grade | Mean Scaled Score | 330.5 | 338.1 | 320.1 |
| 2010 | Earth Science | 11th Grade | Mean Scaled Score | 352.6 | 343.4 | 324.6 |
| 2011 | Earth Science | 11th Grade | Mean Scaled Score | 352.1 | 348.5 | 329.1 |
| 2013 | Earth Science | 11th Grade | Mean Scaled Score | 341.4 | 351.2 | 332.5 |
| 2004 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 310.9 | 317.3 | 319.7 |
| 2005 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 305.8 | 320.1 | 323.1 |
| 2006 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 304.6 | 323.3 | 324.4 |
| 2007 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 313.3 | 324.2 | 327.6 |
| 2008 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 314.2 | 325.8 | 327.4 |
| 2009 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 320.8 | 333.9 | 332.2 |
| 2010 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 323.9 | 336.1 | 336.8 |
| 2011 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 329.9 | 340.1 | 341.7 |
| 2012 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 337.3 | 342.6 | 344.7 |
| 2013 | English Language Arts Standards | 11th Grade | Mean Scaled Score | 333.2 | 340.7 | 344.8 |
| 2004 | Geometry | 11th Grade | Mean Scaled Score | 315.7 | 288.8 | 282.7 |
| 2005 | Geometry | 11th Grade | Mean Scaled Score | 305.7 | 282.3 | 279.3 |
| 2006 | Geometry | 11th Grade | Mean Scaled Score | 292.5 | 282.8 | 277.6 |
| 2007 | Geometry | 11th Grade | Mean Scaled Score | 293.1 | 284.2 | 274.7 |
| 2008 | Geometry | 11th Grade | Mean Scaled Score | 291.5 | 283.7 | 274.1 |
| 2009 | Geometry | 11th Grade | Mean Scaled Score | 302.9 | 283.8 | 275.3 |
| 2010 | Geometry | 11th Grade | Mean Scaled Score | 294.9 | 284 | 279.7 |
| 2011 | Geometry | 11th Grade | Mean Scaled Score | 294.7 | 285.1 | 281 |
| 2012 | Geometry | 11th Grade | Mean Scaled Score | 290.2 | 284.3 | 281.7 |
| 2013 | Geometry | 11th Grade | Mean Scaled Score | 281.4 | 283.4 | 280.3 |
| 2010 | Physics | 11th Grade | Mean Scaled Score | 361.3 | 358.1 | 353.3 |
| 2011 | Physics | 11th Grade | Mean Scaled Score | 368.2 | 360.7 | 358.7 |
| 2012 | Physics | 11th Grade | Mean Scaled Score | 389 | 361.4 | 359.8 |
| 2013 | Physics | 11th Grade | Mean Scaled Score | 401.8 | 366.4 | 361.5 |
| 2004 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 345.3 | 339.9 | 336 |
| 2005 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 336.3 | 345 | 340.7 |
| 2006 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 338.2 | 345.1 | 341.2 |
| 2007 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 347.2 | 350.4 | 341.2 |
| 2008 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 349.1 | 346.9 | 343.4 |
| 2009 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 358.8 | 362.5 | 348.2 |
| 2010 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 365.4 | 365.1 | 351.6 |
| 2011 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 354.6 | 363.6 | 351.3 |
| 2012 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 376.8 | 373.5 | 354.6 |
| 2013 | Summative High School Mathematics | 11th Grade | Mean Scaled Score | 374.4 | 366.0 | 351.5 |
| 2004 | U.S. History | 11th Grade | Mean Scaled Score | 326.7 | 327.4 | 326.1 |
| 2005 | U.S. History | 11th Grade | Mean Scaled Score | 320.2 | 332.9 | 329.1 |
| 2006 | U.S. History | 11th Grade | Mean Scaled Score | 320.8 | 336.5 | 329.2 |
| 2007 | U.S. History | 11th Grade | Mean Scaled Score | 328.8 | 336.5 | 329.6 |
| 2008 | U.S. History | 11th Grade | Mean Scaled Score | 330 | 338.1 | 331.4 |
| 2009 | U.S. History | 11th Grade | Mean Scaled Score | 335.6 | 347.2 | 338.5 |
| 2010 | U.S. History | 11th Grade | Mean Scaled Score | 337.4 | 349.9 | 341.4 |
| 2011 | U.S. History | 11th Grade | Mean Scaled Score | 341.6 | 346.1 | 344.7 |
| 2012 | U.S. History | 11th Grade | Mean Scaled Score | 344.3 | 352.5 | 346.9 |
| 2013 | U.S. History | 11th Grade | Mean Scaled Score | 345.1 | 353.8 | 348.5 |
| 2007 | World History | 11th Grade | Mean Scaled Score | 262.6 | 234.4 | 278.8 |
| 2008 | World History | 11th Grade | Mean Scaled Score | 220.6 | 210.5 | 266.4 |
| 2009 | World History | 11th Grade | Mean Scaled Score | 174.6 | 215.6 | 266 |
| 2013 | World History | 11th Grade | Mean Scaled Score | 323.7 | 246.5 | 288.6 |
| 2004 | Algebra I | 9th Grade | Mean Scaled Score | 288.3 | 293.6 | 301.2 |
| 2005 | Algebra I | 9th Grade | Mean Scaled Score | 301.8 | 306.1 | 304.2 |
| 2006 | Algebra I | 9th Grade | Mean Scaled Score | 299.2 | 303.7 | 302.5 |
| 2007 | Algebra I | 9th Grade | Mean Scaled Score | 293.3 | 304 | 302 |
| 2008 | Algebra I | 9th Grade | Mean Scaled Score | 297.6 | 307.8 | 302.4 |
| 2009 | Algebra I | 9th Grade | Mean Scaled Score | 310.7 | 314.7 | 305.8 |
| 2010 | Algebra I | 9th Grade | Mean Scaled Score | 307.9 | 318.4 | 307.9 |
| 2011 | Algebra I | 9th Grade | Mean Scaled Score | 313.6 | 327.4 | 309.3 |
| 2012 | Algebra I | 9th Grade | Mean Scaled Score | 309.1 | 326 | 311.6 |
| 2013 | Algebra I | 9th Grade | Mean Scaled Score | 329.5 | 329.9 | 313.2 |
| 2004 | Algebra II | 9th Grade | Mean Scaled Score | 326.5 | 330.5 | 367.5 |
| 2011 | Algebra II | 9th Grade | Mean Scaled Score | 403.2 | 397.1 | 396.1 |
| 2008 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 395.5 | 384.3 | 353.2 |
| 2009 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 392.7 | 385.3 | 355.5 |
| 2010 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 414.7 | 388.4 | 358.9 |
| 2011 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 401.9 | 392.6 | 363.5 |
| 2012 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 377.6 | 386 | 366.1 |
| 2013 | Biology/Life Sciences | 9th Grade | Mean Scaled Score | 331.2 | 349.8 | 363.9 |
| 2004 | Earth Science | 9th Grade | Mean Scaled Score | 306 | 318.7 | 318.7 |
| 2005 | Earth Science | 9th Grade | Mean Scaled Score | 317.1 | 323.6 | 321.9 |
| 2006 | Earth Science | 9th Grade | Mean Scaled Score | 320 | 327.5 | 321.1 |
| 2007 | Earth Science | 9th Grade | Mean Scaled Score | 317.5 | 328.7 | 322.8 |
| 2008 | Earth Science | 9th Grade | Mean Scaled Score | 323 | 335 | 326.1 |
| 2009 | Earth Science | 9th Grade | Mean Scaled Score | 322.8 | 333.4 | 326.3 |
| 2010 | Earth Science | 9th Grade | Mean Scaled Score | 324.7 | 337.6 | 329.9 |
| 2011 | Earth Science | 9th Grade | Mean Scaled Score | 333.9 | 343.3 | 332.6 |
| 2012 | Earth Science | 9th Grade | Mean Scaled Score | 327.3 | 338.4 | 336.4 |
| 2004 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 311.1 | 328.6 | 330.6 |
| 2005 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 323.7 | 336 | 339.7 |
| 2006 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 326.3 | 340.5 | 339.1 |
| 2007 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 331.3 | 346.3 | 345 |
| 2008 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 331.5 | 349.3 | 348 |
| 2009 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 338.3 | 351 | 349.7 |
| 2010 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 333.6 | 353.8 | 353.7 |
| 2011 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 336.5 | 357.4 | 357.7 |
| 2012 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 349.2 | 362.5 | 361.5 |
| 2013 | English Language Arts Standards | 9th Grade | Mean Scaled Score | 354.6 | 364.9 | 363.9 |
| 2004 | General Mathematics | 9th Grade | Mean Scaled Score | 241.8 | 252.4 | 294.8 |
| 2006 | General Mathematics | 9th Grade | Mean Scaled Score | 253.3 | 263.7 | 297.1 |
| 2009 | General Mathematics | 9th Grade | Mean Scaled Score | 249.6 | 255.7 | 300 |
| 2005 | Geometry | 9th Grade | Mean Scaled Score | 390.5 | 376 | 349.5 |
| 2006 | Geometry | 9th Grade | Mean Scaled Score | 382.4 | 373.2 | 345.8 |
| 2007 | Geometry | 9th Grade | Mean Scaled Score | 359.4 | 378.6 | 345.5 |
| 2008 | Geometry | 9th Grade | Mean Scaled Score | 363.9 | 377.4 | 345.5 |
| 2009 | Geometry | 9th Grade | Mean Scaled Score | 381.8 | 376.6 | 346.9 |
| 2010 | Geometry | 9th Grade | Mean Scaled Score | 376.9 | 379.6 | 347.9 |
| 2011 | Geometry | 9th Grade | Mean Scaled Score | 358.8 | 383.1 | 349 |
| 2012 | Geometry | 9th Grade | Mean Scaled Score | 353 | 375.3 | 349.2 |
| 2013 | Geometry | 9th Grade | Mean Scaled Score | 364.4 | 377.0 | 345.3 |
| 2004 | Integrated/Coordinated Science I | 9th Grade | Mean Scaled Score | 288.6 | 299.4 | 295.9 |
| 2007 | World History | 9th Grade | Mean Scaled Score | 332.8 | 275.6 | 316.7 |
| 2008 | World History | 9th Grade | Mean Scaled Score | 276.5 | 237.4 | 324.8 |
| 2004 | Algebra I | End of course | Mean Scaled Score | 287.1 | 289.3 | 304.9 |
| 2005 | Algebra I | End of course | Mean Scaled Score | 298.6 | 297.9 | 307.8 |
| 2006 | Algebra I | End of course | Mean Scaled Score | 294.7 | 293.7 | 308.6 |
| 2007 | Algebra I | End of course | Mean Scaled Score | 293 | 296.5 | 311.1 |
| 2008 | Algebra I | End of course | Mean Scaled Score | 299.7 | 301.6 | 314.6 |
| 2009 | Algebra I | End of course | Mean Scaled Score | 310.8 | 306.9 | 319.7 |
| 2010 | Algebra I | End of course | Mean Scaled Score | 305 | 308.3 | 323.9 |
| 2011 | Algebra I | End of course | Mean Scaled Score | 310.6 | 318 | 326.9 |
| 2012 | Algebra I | End of course | Mean Scaled Score | 303.9 | 316.2 | 330.4 |
| 2013 | Algebra I | End of course | Mean Scaled Score | 317.1 | 319.7 | 334.1 |
| 2004 | Algebra II | End of course | Mean Scaled Score | 313 | 314.4 | 312.4 |
| 2005 | Algebra II | End of course | Mean Scaled Score | 292 | 319.8 | 313.9 |
| 2006 | Algebra II | End of course | Mean Scaled Score | 311.9 | 317.3 | 312.6 |
| 2007 | Algebra II | End of course | Mean Scaled Score | 309.6 | 324.2 | 313.9 |
| 2008 | Algebra II | End of course | Mean Scaled Score | 313.7 | 332.3 | 316.1 |
| 2009 | Algebra II | End of course | Mean Scaled Score | 319.7 | 332.9 | 317.9 |
| 2010 | Algebra II | End of course | Mean Scaled Score | 335.9 | 334.9 | 324 |
| 2011 | Algebra II | End of course | Mean Scaled Score | 343.7 | 344.6 | 328.3 |
| 2012 | Algebra II | End of course | Mean Scaled Score | 350.4 | 351 | 331.2 |
| 2013 | Algebra II | End of course | Mean Scaled Score | 345.0 | 343.3 | 325.2 |
| 2004 | Biology/Life Sciences | End of course | Mean Scaled Score | 307.4 | 325.3 | 329.6 |
| 2005 | Biology/Life Sciences | End of course | Mean Scaled Score | 301.7 | 324.6 | 331.1 |
| 2006 | Biology/Life Sciences | End of course | Mean Scaled Score | 307 | 326.1 | 333.4 |
| 2007 | Biology/Life Sciences | End of course | Mean Scaled Score | 316.1 | 334.9 | 335.6 |
| 2008 | Biology/Life Sciences | End of course | Mean Scaled Score | 329.4 | 340.4 | 340.1 |
| 2009 | Biology/Life Sciences | End of course | Mean Scaled Score | 328.8 | 343.1 | 343 |
| 2010 | Biology/Life Sciences | End of course | Mean Scaled Score | 337.2 | 347.1 | 347.2 |
| 2011 | Biology/Life Sciences | End of course | Mean Scaled Score | 334.6 | 354.1 | 351.7 |
| 2012 | Biology/Life Sciences | End of course | Mean Scaled Score | 335.9 | 358.2 | 354.9 |
| 2013 | Biology/Life Sciences | End of course | Mean Scaled Score | 327.9 | 345.5 | 354.0 |
| 2004 | Chemistry | End of course | Mean Scaled Score | 325.5 | 325.1 | 325.7 |
| 2005 | Chemistry | End of course | Mean Scaled Score | 324.2 | 329.8 | 326.8 |
| 2006 | Chemistry | End of course | Mean Scaled Score | 325.3 | 332 | 326.6 |
| 2007 | Chemistry | End of course | Mean Scaled Score | 323.3 | 333.2 | 329.8 |
| 2008 | Chemistry | End of course | Mean Scaled Score | 327.4 | 339.2 | 330.5 |
| 2009 | Chemistry | End of course | Mean Scaled Score | 332 | 341.7 | 333 |
| 2010 | Chemistry | End of course | Mean Scaled Score | 334.9 | 342.8 | 336.7 |
| 2011 | Chemistry | End of course | Mean Scaled Score | 336.5 | 345.9 | 339.7 |
| 2012 | Chemistry | End of course | Mean Scaled Score | 341.2 | 349.5 | 342.2 |
| 2013 | Chemistry | End of course | Mean Scaled Score | 342.8 | 347.0 | 342.9 |
| 2004 | Earth Science | End of course | Mean Scaled Score | 305.6 | 316.6 | 315.3 |
| 2005 | Earth Science | End of course | Mean Scaled Score | 315.9 | 322.9 | 318.7 |
| 2006 | Earth Science | End of course | Mean Scaled Score | 317.8 | 325.7 | 318.2 |
| 2007 | Earth Science | End of course | Mean Scaled Score | 317.1 | 328 | 319.8 |
| 2008 | Earth Science | End of course | Mean Scaled Score | 323.6 | 335 | 323.2 |
| 2009 | Earth Science | End of course | Mean Scaled Score | 323.1 | 333.8 | 323.6 |
| 2010 | Earth Science | End of course | Mean Scaled Score | 325.8 | 337.8 | 327.7 |
| 2011 | Earth Science | End of course | Mean Scaled Score | 334.1 | 343.8 | 330.9 |
| 2012 | Earth Science | End of course | Mean Scaled Score | 326 | 339.8 | 335 |
| 2013 | Earth Science | End of course | Mean Scaled Score | 340.7 | 339.4 | 333.2 |
| 2004 | General Mathematics | End of course | Mean Scaled Score | 241.8 | 252.4 | 305.6 |
| 2006 | General Mathematics | End of course | Mean Scaled Score | 253.3 | 263.7 | 310.1 |
| 2009 | General Mathematics | End of course | Mean Scaled Score | 249.6 | 255.7 | 315.8 |
| 2004 | Geometry | End of course | Mean Scaled Score | 316.2 | 318.4 | 314.2 |
| 2005 | Geometry | End of course | Mean Scaled Score | 333.9 | 317.3 | 314.9 |
| 2006 | Geometry | End of course | Mean Scaled Score | 320.6 | 319.8 | 312.8 |
| 2007 | Geometry | End of course | Mean Scaled Score | 326.6 | 321.7 | 310.2 |
| 2008 | Geometry | End of course | Mean Scaled Score | 322.7 | 318.7 | 310.7 |
| 2009 | Geometry | End of course | Mean Scaled Score | 329.7 | 317.6 | 313.4 |
| 2010 | Geometry | End of course | Mean Scaled Score | 321.9 | 321 | 317.2 |
| 2011 | Geometry | End of course | Mean Scaled Score | 324.9 | 328.1 | 320.3 |
| 2012 | Geometry | End of course | Mean Scaled Score | 314.2 | 323 | 322.8 |
| 2013 | Geometry | End of course | Mean Scaled Score | 312.8 | 324.6 | 320.8 |
| 2004 | Integrated/Coordinated Science I | End of course | Mean Scaled Score | 288.5 | 297.8 | 293.6 |
| 2010 | Physics | End of course | Mean Scaled Score | 361.3 | 358.3 | 349.1 |
| 2011 | Physics | End of course | Mean Scaled Score | 368.2 | 360.8 | 354.3 |
| 2012 | Physics | End of course | Mean Scaled Score | 389 | 359.1 | 355.2 |
| 2013 | Physics | End of course | Mean Scaled Score | 401.8 | 362.6 | 355.5 |
| 2004 | Summative High School Mathematics | End of course | Mean Scaled Score | 350 | 342.1 | 340.8 |
| 2005 | Summative High School Mathematics | End of course | Mean Scaled Score | 334.8 | 346.2 | 345.3 |
| 2006 | Summative High School Mathematics | End of course | Mean Scaled Score | 340.6 | 346.5 | 346.9 |
| 2007 | Summative High School Mathematics | End of course | Mean Scaled Score | 348.7 | 351.3 | 346.8 |
| 2008 | Summative High School Mathematics | End of course | Mean Scaled Score | 352.7 | 348 | 349.9 |
| 2009 | Summative High School Mathematics | End of course | Mean Scaled Score | 358.3 | 363.8 | 355.3 |
| 2010 | Summative High School Mathematics | End of course | Mean Scaled Score | 364.9 | 366.5 | 359.2 |
| 2011 | Summative High School Mathematics | End of course | Mean Scaled Score | 357.3 | 365.7 | 359.3 |
| 2012 | Summative High School Mathematics | End of course | Mean Scaled Score | 377.1 | 375.9 | 362.6 |
| 2013 | Summative High School Mathematics | End of course | Mean Scaled Score | 376.6 | 370.0 | 360.2 |
| 2007 | World History | End of course | Mean Scaled Score | 316.8 | 330.9 | 321.1 |
| 2008 | World History | End of course | Mean Scaled Score | 314.8 | 335.7 | 324.8 |
| 2009 | World History | End of course | Mean Scaled Score | 313.2 | 337.9 | 329 |
| 2010 | World History | End of course | Mean Scaled Score | 328.5 | 346.7 | 336.8 |
| 2011 | World History | End of course | Mean Scaled Score | 324.5 | 350.7 | 342 |
| 2012 | World History | End of course | Mean Scaled Score | 348.4 | 356.9 | 345.7 |
| 2013 | World History | End of course | Mean Scaled Score | 343.9 | 358.7 | 346.7 |
Some data by SchoolDigger.com.
* Chaffey High High School was rated 4 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.