Hillsdale High

Summary:

Hillsdale High is a public high school located in San Mateo, California, serving grades 9-12 with a total enrollment of 1,629 students. It is part of the San Mateo Union High School District, which is ranked 284 out of 1,568 districts in California and has a 4-star rating from SchoolDigger.

Academically, Hillsdale High's performance is generally above the state average but slightly below the district average. While the school's proficiency rates in English Language Arts (64.95%) and Mathematics (37.23%) for 11th-grade students are lower than the San Mateo Union High School District averages (70.29% and 45.94%, respectively), they are significantly higher than the statewide averages (55.73% in ELA and 27.9% in Math). However, the school's performance in Science, as measured by the CAST exam, is above the state average (39.49% proficient) but below the district average (49.35%). Hillsdale High has maintained a relatively high four-year graduation rate, ranging from 90.6% to 94.2% over the past five years, but its dropout rate has been increasing, rising from 2.2% in 2019-2020 to 6.1% in 2022-2023.

Compared to nearby schools, such as Burlingame High and Aragon High, which are also part of the San Mateo Union High School District, Hillsdale High's academic performance is generally lower. These nearby schools consistently rank among the top 100 high schools in California, with significantly higher proficiency rates in English Language Arts, Mathematics, and Science. Additionally, Carlmont High, which is part of the Sequoia Union High School District, also outperforms Hillsdale High academically.


Detail:

Public 9-12

 3115 Del Monte St.
       San Mateo, CA  94403-3800


(650) 558-2699

District: San Mateo Union High

SchoolDigger Rank:
374th of 2,323 California High Schools

Per Pupil Expenditures:  $19,101 Help


Feeder schools for Hillsdale High:

Elementary:    Beresford Elementary
    George Hall Elementary
    Laurel Elementary
Middle:    Abbott Middle

Student/teacher ratio:  17.5 Help
Number of students:  1,629

Racial breakdown:

Hispanic:
36.3%
White:
30.9%
Asian:
20.1%
more

Free/discounted lunch recipients:  19% Help


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Performance Trends
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Compare Details Hillsdale High ranks better than 83.9% of high schools in California. It also ranks 5th among 7 ranked high schools in the San Mateo Union High School District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 76.67. (See more...)
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The Adjusted Cohort Graduation Rate (ACGR) measures the percentage of Hillsdale 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
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Compare Details Student population at Hillsdale High is diverse. Racial makeup is: Hispanic (36.3%), White (30.9%), Asian (20.1%). (See more...)
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Compare Details 19% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Hillsdale High is 17.5, which is the 2nd best among 7 high schools in the San Mateo Union High School District. (See more...)
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Compare Hillsdale High employs 92.6 full-time teachers.
Finance
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Compare Details The average total spent per student at Hillsdale High is $19,101, which is the 3rd highest among 7 high schools in the San Mateo Union High School District.
Schooldigger 2024 Rankings:

Hillsdale High:

SchoolDigger ranks Hillsdale High 374th of 2323 California public high schools. (See Hillsdale 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:
Hispanic students:
White students:


San Mateo Union High:

SchoolDigger ranks San Mateo Union High 284th of 1568 California school districts. (See district ranking list.)


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Rank History for Hillsdale High

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Compare

Rank History for all students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2004 44.01 606th 1653 63.3%
2005 52.23 549th 1901 71.1%
2006 56.08 544th 1968 72.4%
2007 65.10 349th 2063 83.1%
2008 64.67 379th 2117 82.1%
2009 59.35 487th 2238 78.2%
2010 60.93 494th 2281 78.3%
2011 60.14 513th 2367 78.3%
2012 63.37 453rd 2354 80.8%
2013 67.30 358th 2426 85.2%
2015 80.84 346th 1994 82.6%
2016 87.84 235th 2039 88.5%
2017 88.82 225th 2021 88.9%
2018 88.94 230th 2017 88.6%
2019 86.22 257th 2133 88.0%
2022 86.04 267th 2123 87.4%
2023 81.71 301st 2348 87.2%
2024 76.67 374th 2323 83.9%
See the entire list of California High School Rankings!

Rank History for Multi-racial students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 63.34 141st 366 61.5%
2019 39.55 269th 422 36.3%
2022 70.75 142nd 515 72.4%
2023 74.27 142nd 786 81.9%
2024 73.52 149th 804 81.5%
See the entire list of Best California High Schools for Multi-racial Students!

Rank History for English Language Learner students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 84.89 71st 938 92.4%
2019 90.69 34th 941 96.4%
2022 68.96 117th 1044 88.8%
2023 44.56 357th 1323 73.0%
2024 23.05 1155th 1350 14.4%
See the entire list of Best California High Schools for English Language Learner Students!

Rank History for Special Education students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2023 79.21 123rd 1547 92.0%
2024 56.60 381st 1534 75.2%
See the entire list of Best California High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 64.95 623rd 1862 66.5%
2019 59.57 689th 1937 64.4%
2022 45.15 983rd 1943 49.4%
2023 37.18 1213th 2247 46.0%
2024 29.49 1441st 2235 35.5%
See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Female students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 86.48 229th 1760 87.0%
2019 84.80 249th 1833 86.4%
2022 88.25 204th 1858 89.0%
2023 80.80 285th 2118 86.5%
2024 71.44 426th 2098 79.7%
See the entire list of Best California High Schools for Female Students!

Rank History for Disabled students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 68.49 203rd 1052 80.7%
2019 93.81 51st 1117 95.4%
2022 86.26 99th 1161 91.5%
See the entire list of Best California High Schools for Disabled Students!

Rank History for Military Connected students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2022 51.89 84th 168 50.0%
2023 42.16 140th 233 39.9%
2024 38.21 137th 234 41.5%
See the entire list of Best California High Schools for Military Connected Students!

Rank History for Male students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 88.73 208th 1834 88.7%
2019 83.95 267th 1880 85.8%
2022 80.09 324th 1916 83.1%
2023 79.67 320th 2207 85.5%
2024 77.21 351st 2172 83.8%
See the entire list of Best California High Schools for Male Students!

Rank History for Asian students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 75.61 153rd 581 73.7%
2019 61.46 247th 582 57.6%
2022 76.75 138th 581 76.2%
2023 68.88 241st 731 67.0%
2024 64.29 277th 712 61.1%
See the entire list of Best California High Schools for Asian Students!

Rank History for Hispanic students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 68.95 517th 1742 70.3%
2019 71.47 409th 1814 77.5%
2022 51.31 802nd 1861 56.9%
2023 48.40 894th 2142 58.3%
2024 46.53 923rd 2125 56.6%
See the entire list of Best California High Schools for Hispanic Students!

Rank History for White students at Hillsdale High

Year Avg Standard Score Statewide Rank Total # Ranked High Schools CA State Percentile SchoolDigger Rating
2018 84.06 156th 1173 86.7%
2019 90.36 76th 1222 93.8%
2022 84.35 141st 1204 88.3%
2023 75.58 235th 1434 83.6%
2024 64.12 387th 1406 72.5%
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.

Hillsdale 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 Hillsdale High

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 1044 77 237 124 1 n/a n/a 0 1483
1989 912 55 276 136 5 n/a n/a 0 1384
1990 807 40 255 121 5 n/a n/a 0 1228
1991 814 40 296 150 10 n/a n/a 0 1310
1992 804 48 318 168 9 n/a n/a 0 1347
1993 810 50 330 191 7 n/a n/a 0 1388
1994 786 47 304 218 6 n/a n/a 0 1361
1995 789 55 280 196 4 n/a n/a 0 1324
1996 789 55 280 196 4 n/a n/a 0 1324
1997 777 51 286 174 7 n/a n/a 0 1295
1998 762 55 317 211 4 n/a n/a 0 1349
1999 727 47 294 207 4 n/a n/a 0 1279
2000 712 35 267 196 5 n/a n/a 0 1215
2001 642 26 246 212 4 n/a n/a 0 1130
2002 647 35 227 295 3 n/a n/a 0 1207
2003 647 35 227 295 3 n/a n/a 0 1207
2004 641 48 234 327 3 n/a n/a 1 1254
2005 640 59 242 337 0 n/a n/a 12 1290
2006 614 50 233 285 0 n/a n/a 23 1205
2007 570 55 240 283 2 n/a n/a 36 1186
2008 560 47 244 298 4 n/a n/a 0 1153
2009 546 41 215 295 3 30 41 0 1171
2010 602 53 241 339 5 31 2 0 1273
2011 507 25 239 392 4 22 132 0 1321
2012 494 25 241 374 3 21 160 0 1318
2013 492 27 252 381 2 20 176 0 1350
2014 518 28 260 353 2 23 164 0 1348
2015 535 29 276 350 2 24 133 0 1349
2016 556 19 292 358 5 20 125 0 1375
2017 555 19 301 407 3 14 119 0 1418
2018 584 18 313 467 4 8 140 0 1534
2019 112 14 315 511 7 10 600 0 1569
2020 44 15 317 579 4 20 672 0 1651
2021 556 17 341 578 3 17 177 0 1689
2022 522 24 334 573 4 19 169 2 1647
2023 504 27 327 591 2 20 154 4 1629

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 Hillsdale High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1483 66.2 22.4 n/a
1989 1384 62.9 22.0 n/a
1990 1228 60.2 20.3 n/a
1991 1310 54.1 24.2 n/a
1992 1347 55.0 24.4 4.2
1993 1388 61.7 22.5 3.4
1994 1361 58.5 23.3 3.8
1995 1324 55.8 23.7 2.3
1996 1324 55.8 23.7 2.3
1997 1295 54.4 23.8 5.3
1998 1349 57.0 23.7 3.8
1999 1279 55.4 23.1 3.1
2000 1215 59.8 20.3 2.7
2001 1130 57.3 19.7 3.5
2002 1207 59.6 20.3 8.3
2003 1207 59.6 20.3 8.3
2004 1254 62.0 20.2 8.9
2005 1290 65.4 19.7 8.4
2006 1205 68.2 17.7 8
2007 1186 61.2 19.4 11.7
2008 1153 70.4 16.4 12
2009 1171 61.2 16.7 15.5
2010 1273 65.4 19.4 18.5
2011 1321 n/a n/a 17.5
2012 1318 68.9 19.1 n/a
2013 1350 68.3 19.7 17.9
2014 1348 69.6 19.3 19
2015 1349 72.0 18.7 15.9
2016 1375 72.0 19.0 11.9
2017 1418 70.5 20.1 15.2
2018 1534 79.0 19.4 19.9
2019 1569 84.1 18.6 21.9
2020 1651 n/a n/a 22.5
2021 1689 89.0 18.9 20.2
2022 1647 91.1 18.0 23.1
2023 1629 92.6 17.5 19

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 Hillsdale High

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1483 66.2 22.4 n/a
1989 1384 62.9 22.0 n/a
1990 1228 60.2 20.3 n/a
1991 1310 54.1 24.2 n/a
1992 1347 55.0 24.4 4.2
1993 1388 61.7 22.5 3.4
1994 1361 58.5 23.3 3.8
1995 1324 55.8 23.7 2.3
1996 1324 55.8 23.7 2.3
1997 1295 54.4 23.8 5.3
1998 1349 57.0 23.7 3.8
1999 1279 55.4 23.1 3.1
2000 1215 59.8 20.3 2.7
2001 1130 57.3 19.7 3.5
2002 1207 59.6 20.3 8.3
2003 1207 59.6 20.3 8.3
2004 1254 62.0 20.2 8.9
2005 1290 65.4 19.7 8.4
2006 1205 68.2 17.7 8
2007 1186 61.2 19.4 11.7
2008 1153 70.4 16.4 12
2009 1171 61.2 16.7 15.5
2010 1273 65.4 19.4 18.5
2011 1321 n/a n/a 17.5
2012 1318 68.9 19.1 n/a
2013 1350 68.3 19.7 17.9
2014 1348 69.6 19.3 19
2015 1349 72.0 18.7 15.9
2016 1375 72.0 19.0 11.9
2017 1418 70.5 20.1 15.2
2018 1534 79.0 19.4 19.9
2019 1569 84.1 18.6 21.9
2020 1651 n/a n/a 22.5
2021 1689 89.0 18.9 20.2
2022 1647 91.1 18.0 23.1
2023 1629 92.6 17.5 19

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 Hillsdale High

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YearTotal Expenditures Per Pupil
2018 $19,101

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

Impact of COVID-19 on Hillsdale 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 257th of 2133 High schoolsRanks 301st of 2348 High schools
 0.8%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
11th Grade English Language Arts/Literacy (Hillsdale High)7167.3
 3.7%
   11th Grade English Language Arts/Literacy (San Mateo Union High)70.671.9
 1.3%
   11th Grade English Language Arts/Literacy (California)57.355.4
 1.9%
11th Grade Mathematics (Hillsdale High)49.539.6
 9.9%
   11th Grade Mathematics (San Mateo Union High)50.448.2
 2.2%
   11th Grade Mathematics (California)32.227.4
 4.9%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students15691629
 3.8%
African American1427
 92.9%
American Indian72
 71.4%
Asian315327
 3.8%
Hispanic511591
 15.7%
Pacific Islander1020
 100%
White112504
 350%
Two or More Races600154
 74.3%
% Free/Discounted Lunch Recipients21.9%19%
 2.9%


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Frequently Asked Questions about Hillsdale High

Students at Hillsdale High are 36% Hispanic, 31% White, 20% Asian, 9% Two or more races, 2% African American, 1% Pacific Islander.

In the 2022-23 school year, 1,629 students attended Hillsdale High.

Hillsdale High ranks 374th of 2323 California high schools. SchoolDigger rates this school 4 stars out of 5.

Hillsdale High is fed by the following schools:

Elementary : Beresford Elementary
Elementary : George Hall Elementary
Elementary : Laurel Elementary
Middle : Abbott Middle


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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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