Arroyo High

Summary:

Arroyo High is a public high school located in San Lorenzo, California, serving grades 9-12 with a total enrollment of 1,610 students. The school is part of the San Lorenzo Unified School District, which is ranked 1186 out of 1568 districts in California and has a 1-star rating from SchoolDigger.

Arroyo High has consistently maintained a 4-star rating from SchoolDigger over the past several years, ranking between 345 and 582 out of over 2,000 California high schools. This suggests that Arroyo High is performing above average compared to other high schools in the state. The school has a high four-year graduation rate, ranging from 94.6% to 95.9% over the past five years, which is significantly higher than the district's average and the state's average. Additionally, Arroyo High has a relatively low dropout rate, ranging from 0.2% to 1.7% over the past five years, lower than the district's average and the state's average.

While Arroyo High has seen an increase in chronic absenteeism, from 9.5% in 2017-2018 to 16.9% in 2022-2023, this rate is still lower than the district's average and some of the nearby schools. The school also consistently outperforms the San Lorenzo Unified School District and the state of California in Smarter Balanced Assessments for English Language Arts/Literacy and Mathematics, as well as in the California Science Test (CAST). However, Arroyo High's performance varies across different student subgroups, with the school ranking highly for Asian and Multi-racial students, but lower for African American and White students. The school may need to focus on addressing these achievement gaps. Compared to nearby schools, Arroyo High generally outperforms schools in the San Lorenzo Unified School District, but the nearby KIPP King Collegiate High, a public charter school, outperforms Arroyo High in several areas, including graduation rates and test scores.


Detail:

Public 9-12

 15701 Lorenzo Ave.
       San Lorenzo, CA  94580-1407


(510) 317-4000

District: San Lorenzo Unified

SchoolDigger Rank:
582nd of 2,323 California High Schools

Per Pupil Expenditures:  $6,356 Help


Feeder schools for Arroyo High:

Elementary:    Bay Elementary
    Colonial Acres Elementary
    Corvallis Elementary
    Dayton Elementary
    More...
Middle:    Bohannon Middle
    Edendale Middle
    Washington Manor Middle

Student/teacher ratio:  26.3 Help
Number of students:  1,610

Racial breakdown:

Hispanic:
47.3%
Asian:
33.1%
White:
8.0%
more

Free/discounted lunch recipients:  70.1% Help


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 Compare Arroyo High to nearby high schools!

Performance Trends
Help
Compare Details Arroyo High ranks better than 74.9% of high schools in California. It also ranks first among 4 ranked high schools in the San Lorenzo Unified School District! (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 62.53. (See more...)
Help
The four-year cohort graduation rate measures the percentage of students at Arroyo High who earn a standard high school diploma within four years of starting ninth grade.
Help
The high school dropout rate measures the percentage of students who do not complete their high school education.
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
Help
Compare Details Arroyo High has the largest high school student body size in the San Lorenzo Unified School District. Racial makeup is: Hispanic (47.3%), Asian (33.1%), White (8%). (See more...)
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Compare Details 70.1% of students are receiving a free or discounted lunch. This is the lowest percentage in the San Lorenzo Unified School District. (See more...)
Teachers
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Compare Details The student/teacher ratio at Arroyo High is 26.3, which is the highest among 4 high schools in the San Lorenzo Unified School District! (See more...)
Help
Compare Arroyo High employs 61 full-time teachers.
Finance
Help
Compare Details The average total spent per student at Arroyo High is $6,356, which is the lowest among 4 high schools in the San Lorenzo Unified School District!
Schooldigger 2024 Rankings:

Arroyo High:

SchoolDigger ranks Arroyo High 582nd of 2323 California public high schools. (See Arroyo 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:
Female students:
Military Connected students:
Male students:
Asian students:
African American students:
Hispanic students:
White students:


San Lorenzo Unified:

SchoolDigger ranks San Lorenzo Unified 1186th of 1568 California school districts. (See district ranking list.)

Average Rating:

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Rank History for Arroyo High

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Rank History for all students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2004 46.73 558th 1653 66.2%
2005 56.06 480th 1901 74.8%
2006 55.30 560th 1968 71.5%
2007 51.54 626th 2063 69.7%
2008 49.24 700th 2117 66.9%
2009 54.49 608th 2238 72.8%
2010 58.19 551st 2281 75.8%
2011 59.12 545th 2367 77.0%
2012 61.95 495th 2354 79.0%
2013 65.42 410th 2426 83.1%
2015 68.98 564th 1994 71.7%
2016 82.05 345th 2039 83.1%
2017 80.24 410th 2021 79.7%
2018 75.76 475th 2017 76.5%
2019 69.02 559th 2133 73.8%
2022 75.24 447th 2123 78.9%
2023 76.26 398th 2348 83.0%
2024 62.53 582nd 2323 74.9%
See the entire list of California High School Rankings!

Rank History for Multi-racial students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2022 38.38 330th 515 35.9%
2023 68.83 183rd 786 76.7%
2024 49.69 340th 804 57.7%
See the entire list of Best California High Schools for Multi-racial Students!

Rank History for English Language Learner students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 38.92 471st 938 49.8%
2022 56.15 243rd 1044 76.7%
2023 33.85 652nd 1323 50.7%
2024 46.31 330th 1350 75.6%
See the entire list of Best California High Schools for English Language Learner Students!

Rank History for Special Education students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2023 23.26 1234th 1547 20.2%
2024 41.81 671st 1534 56.3%
See the entire list of Best California High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 85.54 232nd 1862 87.5%
2019 66.10 537th 1937 72.3%
2022 84.40 211th 1943 89.1%
2023 82.77 252nd 2247 88.8%
2024 72.64 378th 2235 83.1%
See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Female students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 75.29 430th 1760 75.6%
2019 67.26 511th 1833 72.1%
2022 73.81 413th 1858 77.8%
2023 74.81 375th 2118 82.3%
2024 54.65 713th 2098 66.0%
See the entire list of Best California High Schools for Female Students!

Rank History for Disabled students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 31.64 665th 1052 36.8%
2019 34.15 659th 1117 41.0%
2022 41.97 532nd 1161 54.2%
See the entire list of Best California High Schools for Disabled Students!

Rank History for Military Connected students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2022 41.74 97th 168 42.3%
2023 49.17 114th 233 51.1%
2024 40.06 132nd 234 43.6%
See the entire list of Best California High Schools for Military Connected Students!

Rank History for Male students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 71.51 501st 1834 72.7%
2019 63.69 595th 1880 68.4%
2022 72.52 449th 1916 76.6%
2023 74.96 387th 2207 82.5%
2024 65.01 527th 2172 75.7%
See the entire list of Best California High Schools for Male Students!

Rank History for Asian students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 71.20 193rd 581 66.8%
2019 66.19 221st 582 62.0%
2022 61.98 250th 581 57.0%
2023 73.63 186th 731 74.6%
2024 58.38 329th 712 53.8%
See the entire list of Best California High Schools for Asian Students!

Rank History for African American students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 52.10 249th 582 57.2%
2019 56.34 218th 592 63.2%
2022 74.56 98th 522 81.2%
2024 22.30 588th 721 18.4%
See the entire list of Best California High Schools for African American Students!

Rank History for Hispanic students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 72.82 438th 1742 74.9%
2019 57.26 698th 1814 61.5%
2022 67.76 470th 1861 74.7%
2023 57.73 640th 2142 70.1%
2024 44.67 977th 2125 54.0%
See the entire list of Best California High Schools for Hispanic Students!

Rank History for White students at Arroyo High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 54.29 597th 1173 49.1%
2019 42.90 726th 1222 40.6%
2022 37.46 759th 1204 37.0%
2023 44.06 690th 1434 51.9%
2024 20.12 1067th 1406 24.1%
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.

Arroyo High Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 




Data source: California Department of Education

Review counts

All ratings (Avg rating: 5)
100%

0%

0%

0%

0%

  

Reviews:
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Enrollment information for Arroyo High

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 1000 16 214 262 19 n/a n/a 0 1511
1989 902 26 236 266 37 n/a n/a 0 1467
1990 864 38 252 275 37 n/a n/a 0 1466
1991 830 51 268 314 30 n/a n/a 0 1493
1992 873 57 280 331 24 n/a n/a 0 1565
1993 840 63 280 358 22 n/a n/a 0 1563
1994 874 76 296 391 17 n/a n/a 0 1654
1995 905 63 357 423 17 n/a n/a 0 1765
1996 905 63 357 423 17 n/a n/a 0 1765
1997 956 61 379 472 19 n/a n/a 0 1887
1998 981 82 416 486 19 n/a n/a 0 1984
1999 787 72 337 409 16 n/a n/a 0 1621
2000 829 89 373 448 13 n/a n/a 0 1752
2001 766 106 404 485 13 n/a n/a 0 1774
2002 707 89 448 520 18 n/a n/a 0 1782
2003 707 89 448 520 18 n/a n/a 0 1782
2004 658 94 475 534 17 n/a n/a 0 1778
2005 625 113 521 606 15 n/a n/a 2 1882
2006 611 128 552 662 13 n/a n/a 3 1969
2007 555 145 578 747 18 n/a n/a 6 2049
2008 470 126 558 768 16 n/a n/a 0 1938
2009 443 140 554 767 19 28 13 0 1964
2010 387 142 574 724 14 28 2 0 1871
2011 343 147 575 683 10 26 5 0 1789
2012 323 155 563 701 8 26 15 0 1791
2013 278 157 557 734 10 28 22 0 1786
2014 261 148 543 749 9 26 24 0 1760
2015 229 142 556 795 7 25 30 0 1784
2016 230 148 585 810 10 21 35 0 1839
2017 210 133 581 783 8 25 40 0 1780
2018 206 126 594 838 5 23 38 0 1830
2019 195 127 558 859 7 25 48 0 1819
2020 170 108 546 847 10 23 46 0 1750
2021 154 85 574 860 7 34 57 1 1772
2022 139 82 568 799 8 29 65 0 1690
2023 128 83 533 762 10 29 65 0 1610

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 Arroyo High

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Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1511 67.9 22.2 n/a
1989 1467 65.7 22.3 n/a
1990 1466 62.0 23.6 n/a
1991 1493 66.7 22.3 n/a
1992 1565 67.8 23.0 2.3
1993 1563 71.1 22.0 14.4
1994 1654 71.6 23.1 16.5
1995 1765 77.0 22.9 18
1996 1765 77.0 22.9 18
1997 1887 77.7 24.3 16.2
1998 1984 89.9 22.1 16
1999 1621 79.0 20.5 15.4
2000 1752 81.0 21.6 12.8
2001 1774 84.0 21.1 13.5
2002 1782 87.0 20.5 15.5
2003 1782 87.0 20.5 15.5
2004 1778 80.0 22.2 16.9
2005 1882 82.5 22.8 11.8
2006 1969 83.3 23.6 18.8
2007 2049 86.2 23.8 n/a
2008 1938 92.1 21.0 24.8
2009 1964 80.7 21.7 22.7
2010 1871 79.2 23.6 30
2011 1789 n/a n/a 29.5
2012 1791 69.9 25.5 32.5
2013 1786 68.6 26.0 42.7
2014 1760 68.0 25.8 47.9
2015 1784 78.0 22.8 48.9
2016 1839 81.0 22.7 50.2
2017 1780 80.5 22.0 50.7
2018 1830 79.3 23.0 51
2019 1819 77.9 23.3 49
2020 1750 n/a n/a 47.4
2021 1772 68.4 25.8 47.2
2022 1690 n/a n/a 68.9
2023 1610 61.0 26.3 70.1

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 Arroyo High

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Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1511 67.9 22.2 n/a
1989 1467 65.7 22.3 n/a
1990 1466 62.0 23.6 n/a
1991 1493 66.7 22.3 n/a
1992 1565 67.8 23.0 2.3
1993 1563 71.1 22.0 14.4
1994 1654 71.6 23.1 16.5
1995 1765 77.0 22.9 18
1996 1765 77.0 22.9 18
1997 1887 77.7 24.3 16.2
1998 1984 89.9 22.1 16
1999 1621 79.0 20.5 15.4
2000 1752 81.0 21.6 12.8
2001 1774 84.0 21.1 13.5
2002 1782 87.0 20.5 15.5
2003 1782 87.0 20.5 15.5
2004 1778 80.0 22.2 16.9
2005 1882 82.5 22.8 11.8
2006 1969 83.3 23.6 18.8
2007 2049 86.2 23.8 n/a
2008 1938 92.1 21.0 24.8
2009 1964 80.7 21.7 22.7
2010 1871 79.2 23.6 30
2011 1789 n/a n/a 29.5
2012 1791 69.9 25.5 32.5
2013 1786 68.6 26.0 42.7
2014 1760 68.0 25.8 47.9
2015 1784 78.0 22.8 48.9
2016 1839 81.0 22.7 50.2
2017 1780 80.5 22.0 50.7
2018 1830 79.3 23.0 51
2019 1819 77.9 23.3 49
2020 1750 n/a n/a 47.4
2021 1772 68.4 25.8 47.2
2022 1690 n/a n/a 68.9
2023 1610 61.0 26.3 70.1

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 Arroyo High

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YearTotal Expenditures Per Pupil
2018 $6,356

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

Impact of COVID-19 on Arroyo 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 559th of 2133 High schoolsRanks 398th of 2348 High schools
 9.3%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
11th Grade English Language Arts/Literacy (Arroyo High)59.566.2
 6.7%
   11th Grade English Language Arts/Literacy (San Lorenzo Unified)52.551.9
 0.6%
   11th Grade English Language Arts/Literacy (California)57.355.4
 1.9%
11th Grade Mathematics (Arroyo High)35.535.4
 0.1%
   11th Grade Mathematics (San Lorenzo Unified)27.425.2
 2.2%
   11th Grade Mathematics (California)32.227.4
 4.9%
12th Grade Science (Arroyo High)2639.2
 13.2%
   12th Grade Science (San Lorenzo Unified)19.727.9
 8.2%
   12th Grade Science (California)25.626.8
 1.2%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students18191610
 11.5%
African American12783
 34.6%
American Indian710
 42.9%
Asian558533
 4.5%
Hispanic859762
 11.3%
Pacific Islander2529
 16%
White195128
 34.4%
Two or More Races4865
 35.4%
% Free/Discounted Lunch Recipients49%70.1%
 21%


Schools Near Arroyo High









Frequently Asked Questions about Arroyo High

In the 2022-23 school year, 1,610 students attended Arroyo High.

Arroyo High is fed by the following schools:

Elementary : Bay Elementary
Elementary : Colonial Acres Elementary
Elementary : Corvallis Elementary
Elementary : Dayton Elementary
Elementary : Del Rey Elementary
Elementary : Grant Elementary
Elementary : Hesperian Elementary
Elementary : Hillside Elementary
Elementary : Lorenzo Manor Elementary
Middle : Bohannon Middle
Middle : Edendale Middle
Middle : Washington Manor Middle

Arroyo High ranks 582nd of 2323 California high schools. SchoolDigger rates this school 4 stars out of 5.

Students at Arroyo High are 47% Hispanic, 33% Asian, 8% White, 5% African American, 4% Two or more races, 2% Pacific Islander.


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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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