USA.com / California / Los Angeles, Long Beach, Santa Ana Area / Public Schools / Arroyo Seco Junior High Middle School
Arroyo Seco Junior High Middle School
27171 North Vista Delgado Dr
Valencia CA, 91354, Los Angeles County
Phone: 661-296-0991
Ranking: 
(1,302 out of 6,930, top 19%)*
(1,302 out of 6,930, top 19%)*Type: Regular Middle School
Status: Currently Operational
Grade: Grade 7 to Grade 8
School District: William S. Hart Union High School District
Title I Eligible School: 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: | 49 | 49 | 48 | NA | NA | 49 | 51 | 58 | ||||||
| Total Students: | 1,256 | 1,262 | 1,251 | 1,217 | 1,180 | 1,251 | 1,249 | |||||||
| Grade 7: | 621 | 49.4% | 622 | 49.3% | 642 | 51.3% | 608 | 50.0% | 601 | 50.9% | 604 | 48.3% | 651 | 52.1% |
| Grade 8: | 635 | 50.6% | 640 | 50.7% | 609 | 48.7% | 599 | 49.2% | 579 | 49.1% | 647 | 51.7% | 598 | 47.9% |
| Ungraded: | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Student By Gender: | ||||||||||||||
| Male: | 624 | 49.7% | 629 | 49.8% | 644 | 51.5% | 614 | 50.5% | 612 | 51.9% | 625 | 50.0% | 597 | 47.8% |
| Female: | 632 | 50.3% | 633 | 50.2% | 607 | 48.5% | 603 | 49.5% | 568 | 48.1% | 626 | 50.0% | 648 | 51.9% |
| Student By Races: | ||||||||||||||
| American Indian/Alaska Native: | 2 | 0.2% | 3 | 0.2% | 1 | 0.1% | 4 | 0.3% | 8 | 0.7% | 7 | 0.6% | 7 | 0.6% |
| Asian: | 83 | 6.6% | 93 | 7.4% | 88 | 7.0% | 93 | 7.6% | 107 | 9.1% | 103 | 8.2% | 120 | 9.6% |
| Hispanic: | 379 | 30.2% | 382 | 30.3% | 380 | 30.4% | 335 | 27.5% | 299 | 25.3% | 288 | 23.0% | 275 | 22.0% |
| Black: | 20 | 1.6% | 23 | 1.8% | 30 | 2.4% | 32 | 2.6% | 28 | 2.4% | 27 | 2.2% | 30 | 2.4% |
| White: | 708 | 56.4% | 689 | 54.6% | 678 | 54.2% | 714 | 58.7% | 732 | 62.0% | 810 | 64.7% | 817 | 65.4% |
| Hawaiian Native/Pacific Islander: | 1 | 0.1% | 1 | 0.1% | 0 | 0.0% | 1 | 0.1% | 3 | 0.3% | 6 | 0.5% | NA | NA |
| Two or More Races: | 63 | 5.0% | 71 | 5.6% | 74 | 5.9% | 38 | 3.1% | 3 | 0.3% | 10 | 0.8% | NA | NA |
| Lunch Program: | ||||||||||||||
| Free Lunch Program Eligible: | 129 | 10.3% | 106 | 8.4% | NA | NA | 104 | 8.5% | 86 | 7.3% | 62 | 5.0% | 42 | 3.4% |
| Reduced-Price Lunch Program Eligible: | 51 | 4.1% | 50 | 4.0% | NA | NA | 4 | 0.3% | 44 | 3.7% | 42 | 3.4% | 33 | 2.6% |
| Student-Teacher Ratio: | 25.43 | 25.65 | 26.06 | NA | NA | 24.08 | 20.90 | 21.50 | ||||||
Test Performance
| Year | Test | Grade | Measurement | Score | School District | State Average |
| STAR | ||||||
| 2008 | Algebra I | 7th Grade | Mean Scaled Score | 435.3 | 450.1 | 414.9 |
| 2009 | Algebra I | 7th Grade | Mean Scaled Score | 411.3 | 457.1 | 422.7 |
| 2010 | Algebra I | 7th Grade | Mean Scaled Score | 394.3 | 447.6 | 430.9 |
| 2011 | Algebra I | 7th Grade | Mean Scaled Score | 393.2 | 451.6 | 428.8 |
| 2012 | Algebra I | 7th Grade | Mean Scaled Score | 425.4 | 456.1 | 434.3 |
| 2013 | Algebra I | 7th Grade | Mean Scaled Score | 414.5 | 456.3 | 437.3 |
| 2004 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 354.3 | 355.7 | 332.4 |
| 2005 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 357.4 | 355.7 | 337.4 |
| 2006 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 359.2 | 362.6 | 341 |
| 2007 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 366 | 365.8 | 342.9 |
| 2008 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 372.4 | 372.7 | 348.6 |
| 2009 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 370.6 | 375.8 | 354.3 |
| 2010 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 377.3 | 379.6 | 356.4 |
| 2011 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 371.4 | 378.8 | 360.3 |
| 2012 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 383.3 | 390.1 | 366.6 |
| 2013 | English Language Arts Standards | 7th Grade | Mean Scaled Score | 385.1 | 387.3 | 363.5 |
| 2004 | Mathematics | 7th Grade | Mean Scaled Score | 351.6 | 352.5 | 328.5 |
| 2005 | Mathematics | 7th Grade | Mean Scaled Score | 362.5 | 355.9 | 333.6 |
| 2006 | Mathematics | 7th Grade | Mean Scaled Score | 369.8 | 360.9 | 338.2 |
| 2007 | Mathematics | 7th Grade | Mean Scaled Score | 374.5 | 367.7 | 336 |
| 2008 | Mathematics | 7th Grade | Mean Scaled Score | 359.4 | 357.8 | 339.3 |
| 2009 | Mathematics | 7th Grade | Mean Scaled Score | 362.3 | 367.8 | 345 |
| 2010 | Mathematics | 7th Grade | Mean Scaled Score | 356 | 370.9 | 352.2 |
| 2011 | Mathematics | 7th Grade | Mean Scaled Score | 355.2 | 367.3 | 354.9 |
| 2012 | Mathematics | 7th Grade | Mean Scaled Score | 370.1 | 376.7 | 360.5 |
| 2013 | Mathematics | 7th Grade | Mean Scaled Score | 373.5 | 370.9 | 357.9 |
| 2004 | Algebra I | 8th Grade | Mean Scaled Score | 378.9 | 376.8 | 330.8 |
| 2005 | Algebra I | 8th Grade | Mean Scaled Score | 393.1 | 387.7 | 330.4 |
| 2006 | Algebra I | 8th Grade | Mean Scaled Score | 415.1 | 401.2 | 338.5 |
| 2007 | Algebra I | 8th Grade | Mean Scaled Score | 398.5 | 391 | 336.8 |
| 2008 | Algebra I | 8th Grade | Mean Scaled Score | 411.7 | 412.3 | 342.9 |
| 2009 | Algebra I | 8th Grade | Mean Scaled Score | 399.1 | 419.4 | 347.3 |
| 2010 | Algebra I | 8th Grade | Mean Scaled Score | 383.8 | 410.1 | 350.3 |
| 2011 | Algebra I | 8th Grade | Mean Scaled Score | 344.1 | 387.8 | 351.9 |
| 2012 | Algebra I | 8th Grade | Mean Scaled Score | 370.3 | 387.8 | 355.1 |
| 2013 | Algebra I | 8th Grade | Mean Scaled Score | 382.0 | 386.2 | 358.0 |
| 2004 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 347.1 | 345.4 | 328.1 |
| 2005 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 356.4 | 352.6 | 334.4 |
| 2006 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 359 | 357.4 | 339.2 |
| 2007 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 363.5 | 360.6 | 338.7 |
| 2008 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 363.2 | 362.1 | 341.2 |
| 2009 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 371.1 | 372 | 348.5 |
| 2010 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 372 | 377.9 | 357.1 |
| 2011 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 379.5 | 383.3 | 361.8 |
| 2012 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 380 | 384 | 365.2 |
| 2013 | English Language Arts Standards | 8th Grade | Mean Scaled Score | 372.8 | 378.9 | 361.3 |
| 2004 | General Mathematics | 8th Grade | Mean Scaled Score | 351.7 | 338 | 311.1 |
| 2005 | General Mathematics | 8th Grade | Mean Scaled Score | 352.4 | 345.5 | 316.4 |
| 2006 | General Mathematics | 8th Grade | Mean Scaled Score | 356 | 343.7 | 316.3 |
| 2007 | General Mathematics | 8th Grade | Mean Scaled Score | 355.5 | 346.6 | 315.7 |
| 2008 | General Mathematics | 8th Grade | Mean Scaled Score | 366.5 | 355.4 | 320.5 |
| 2009 | General Mathematics | 8th Grade | Mean Scaled Score | 358.4 | 363.2 | 321.3 |
| 2010 | General Mathematics | 8th Grade | Mean Scaled Score | 350.6 | 359.2 | 320.2 |
| 2011 | General Mathematics | 8th Grade | Mean Scaled Score | 326.8 | 351.7 | 322.7 |
| 2012 | General Mathematics | 8th Grade | Mean Scaled Score | 348.6 | 351.3 | 323.5 |
| 2013 | General Mathematics | 8th Grade | Mean Scaled Score | 356.8 | 352.7 | 322.9 |
| 2004 | Geometry | 8th Grade | Mean Scaled Score | 424.3 | 425.8 | 395.6 |
| 2005 | Geometry | 8th Grade | Mean Scaled Score | 446.8 | 431.8 | 407.3 |
| 2006 | Geometry | 8th Grade | Mean Scaled Score | 422.9 | 436 | 409.2 |
| 2007 | Geometry | 8th Grade | Mean Scaled Score | 439 | 443.7 | 417.9 |
| 2008 | Geometry | 8th Grade | Mean Scaled Score | 428.5 | 448.6 | 420.2 |
| 2009 | Geometry | 8th Grade | Mean Scaled Score | 445.3 | 450.7 | 423 |
| 2010 | Geometry | 8th Grade | Mean Scaled Score | 432.2 | 450.2 | 421.4 |
| 2011 | Geometry | 8th Grade | Mean Scaled Score | 412.8 | 439.7 | 424.6 |
| 2012 | Geometry | 8th Grade | Mean Scaled Score | 409.9 | 438.6 | 426 |
| 2013 | Geometry | 8th Grade | Mean Scaled Score | 438.7 | 447.1 | 422.6 |
| 2004 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 337.3 | 338.1 | 319.2 |
| 2005 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 346.7 | 348 | 323.8 |
| 2006 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 351.6 | 350.9 | 327.9 |
| 2007 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 347.8 | 352.6 | 329.8 |
| 2008 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 356.3 | 357.8 | 333.9 |
| 2009 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 364.3 | 366.7 | 340.2 |
| 2010 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 366.9 | 378.7 | 348.1 |
| 2011 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 368 | 376.6 | 352.6 |
| 2012 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 371.2 | 381.6 | 356.6 |
| 2013 | History - Social Science Grade 8 | 8th Grade | Mean Scaled Score | 369.9 | 381.2 | 357.1 |
| 2006 | Science | 8th Grade | Mean Scaled Score | 363.3 | 361.3 | 331.2 |
| 2007 | Science | 8th Grade | Mean Scaled Score | 379.1 | 377.1 | 339.7 |
| 2008 | Science | 8th Grade | Mean Scaled Score | 388.5 | 395.5 | 355 |
| 2009 | Science | 8th Grade | Mean Scaled Score | 420.3 | 414.3 | 364.3 |
| 2010 | Science | 8th Grade | Mean Scaled Score | 409.7 | 413.7 | 375.3 |
| 2011 | Science | 8th Grade | Mean Scaled Score | 407.9 | 421.4 | 385.9 |
| 2012 | Science | 8th Grade | Mean Scaled Score | 441.4 | 436.7 | 394.8 |
| 2013 | Science | 8th Grade | Mean Scaled Score | 431.5 | 433.9 | 390.9 |
| 2004 | Algebra I | End of course | Mean Scaled Score | 378.9 | 330.1 | 304.9 |
| 2005 | Algebra I | End of course | Mean Scaled Score | 393.1 | 332.2 | 307.8 |
| 2006 | Algebra I | End of course | Mean Scaled Score | 415.1 | 341.2 | 308.6 |
| 2007 | Algebra I | End of course | Mean Scaled Score | 398.5 | 341.2 | 311.1 |
| 2008 | Algebra I | End of course | Mean Scaled Score | 416.8 | 348.7 | 314.6 |
| 2009 | Algebra I | End of course | Mean Scaled Score | 400.8 | 351.9 | 319.7 |
| 2010 | Algebra I | End of course | Mean Scaled Score | 387.7 | 358.6 | 323.9 |
| 2011 | Algebra I | End of course | Mean Scaled Score | 356.7 | 352 | 326.9 |
| 2012 | Algebra I | End of course | Mean Scaled Score | 382.4 | 351.3 | 330.4 |
| 2013 | Algebra I | End of course | Mean Scaled Score | 389.0 | 353.6 | 334.1 |
| 2004 | General Mathematics | End of course | Mean Scaled Score | 351.7 | 329.5 | 305.6 |
| 2005 | General Mathematics | End of course | Mean Scaled Score | 352.4 | 334.6 | 310.1 |
| 2006 | General Mathematics | End of course | Mean Scaled Score | 356 | 335.5 | 310.1 |
| 2007 | General Mathematics | End of course | Mean Scaled Score | 355.5 | 336.6 | 311 |
| 2008 | General Mathematics | End of course | Mean Scaled Score | 366.5 | 345.6 | 315.2 |
| 2009 | General Mathematics | End of course | Mean Scaled Score | 358.4 | 350.8 | 315.8 |
| 2010 | General Mathematics | End of course | Mean Scaled Score | 350.6 | 347.1 | 314.7 |
| 2011 | General Mathematics | End of course | Mean Scaled Score | 326.8 | 341.9 | 316.8 |
| 2012 | General Mathematics | End of course | Mean Scaled Score | 348.6 | 341.3 | 318 |
| 2013 | General Mathematics | End of course | Mean Scaled Score | 356.8 | 341.1 | 317.9 |
| 2004 | Geometry | End of course | Mean Scaled Score | 424.3 | 350 | 314.2 |
| 2005 | Geometry | End of course | Mean Scaled Score | 446.8 | 356.9 | 314.9 |
| 2006 | Geometry | End of course | Mean Scaled Score | 422.9 | 356.5 | 312.8 |
| 2007 | Geometry | End of course | Mean Scaled Score | 439 | 355.5 | 310.2 |
| 2008 | Geometry | End of course | Mean Scaled Score | 428.5 | 356.9 | 310.7 |
| 2009 | Geometry | End of course | Mean Scaled Score | 445.3 | 363.7 | 313.4 |
| 2010 | Geometry | End of course | Mean Scaled Score | 432.2 | 356.6 | 317.2 |
| 2011 | Geometry | End of course | Mean Scaled Score | 412.8 | 354.9 | 320.3 |
| 2012 | Geometry | End of course | Mean Scaled Score | 409.9 | 349.3 | 322.8 |
| 2013 | Geometry | End of course | Mean Scaled Score | 438.7 | 346.3 | 320.8 |
Some data by SchoolDigger.com.
* Arroyo Seco Junior High Middle School was rated 4.5 out of 5 by USA.com. The ranking was calculated based on publically available historical Math and English performance data.