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Hillsdale High

Q: Is Hillsdale High a good school?

Hillsdale High ranks 314 th of 2162 California high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

314^th

SchoolDigger Rank ?

of 2,162 California High Schools

Better than 85% of California high schools

Summary

Hillsdale High is a public high school located in San Mateo, California, serving grades 9-12 with a total enrollment of 1,581 students. It is part of the San Mateo Union High School District, which is ranked 240 out of 1,543 districts in California and has a 4-star rating from SchoolDigger.

Hillsdale High's academic performance is generally strong compared to the state average, but lags behind some of the higher-performing nearby schools like Burlingame High and Aragon High. For example, in the 2024-2025 school year, Hillsdale High had 72.03% of students proficient or better in English Language Arts/Literacy, compared to 82.57% at Burlingame High and 81.7% at Aragon High. In Mathematics, Hillsdale High had 41.9% proficiency, while Burlingame High and Aragon High had 65.82% and 59.4% respectively. Hillsdale High has also experienced relatively high chronic absenteeism rates, ranging from 13.4% to 24.9% in recent years, which is higher than the other district schools.

Despite these challenges, Hillsdale High has consistently maintained a 4-star rating from SchoolDigger over the past several years, ranking between 225 and 364 out of over 2,000 California high schools. This suggests that the school is still providing a solid educational foundation for the majority of its students. However, the school may need to focus on addressing equity and providing additional support for underperforming student subgroups, as well as investigating the root causes of its higher chronic absenteeism rates.

1,585

Students ?

19.3

Student/teacher ratio ?

$37,679

Per pupil spending ?

25.2%

Free/discounted lunch ?

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

(650) 558-2699

District: San Mateo Union High

Feeder schools for Hillsdale High:

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

Racial breakdown:

Hispanic:

37.7%

White:

30.9%

Asian:

19.7%

See top rated California high schools

Compare Hillsdale High to nearby high schools!

At a glance

▬ Ranking trend: Holding steady — 85th percentile in 2013 → 85th in 2025

Strengths

✓Test scores above the California average (51% vs 41% meeting standards)

✓Ranks in the top 15% of California high schools

✓91% graduate in 4 years — above the California average (88%)

Worth a look

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2024-2025) ?

This school51%

District avg58%

California avg41%

314^th of 2,162

California public high schools ?

Top 15%▲ up 3 pts since 2015

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

4^th of 7High Schools in the San Mateo Union High

240^th of 1,543San Mateo Union High among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	85.0	314 of 2162	85.5%	★★★★☆
2024	82.7	364 of 2159	83.1%	★★★★☆
2023	86.4	288 of 2170	86.7%	★★★★☆
2022	86.0	267 of 2123	87.4%	★★★★☆
2019	86.2	257 of 2133	88.0%	★★★★☆
2018	88.9	230 of 2017	88.6%	★★★★☆
2017	88.8	225 of 2021	88.9%	★★★★☆
2016	87.8	235 of 2039	88.5%	★★★★☆
2015	80.8	346 of 1994	82.6%	★★★★☆
2013	67.3	358 of 2426	85.2%	★★★★☆
2012	63.4	453 of 2354	80.8%	★★★★☆
2011	60.1	513 of 2367	78.3%	★★★★☆
2010	60.9	494 of 2281	78.3%	★★★★☆
2009	59.4	487 of 2238	78.2%	★★★★☆
2008	64.7	379 of 2117	82.1%	★★★★☆
2007	65.1	349 of 2063	83.1%	★★★★☆
2006	56.1	544 of 1968	72.4%	★★★★☆
2005	52.2	549 of 1901	71.1%	★★★★☆
2004	44.0	606 of 1653	63.3%	★★★☆☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	80.9	102 of 585	82.6%	★★★★☆
2024	64.7	242 of 573	57.8%	★★★☆☆
2023	68.4	215 of 591	63.6%	★★★☆☆
2022	76.7	138 of 581	76.2%	★★★★☆
2019	61.5	247 of 582	57.6%	★★★☆☆
2018	75.6	153 of 581	73.7%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	86.3	99 of 1161	91.5%	★★★★★
2019	93.8	51 of 1117	95.4%	★★★★★
2018	68.5	203 of 1052	80.7%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	27.0	911 of 1085	16.0%	★☆☆☆☆
2023	55.1	270 of 1064	74.6%	★★★★☆
2022	69.0	117 of 1044	88.8%	★★★★☆
2019	90.7	34 of 941	96.4%	★★★★★
2018	84.9	71 of 938	92.4%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	81.7	322 of 1906	83.1%	★★★★☆
2024	76.5	416 of 1915	78.3%	★★★★☆
2023	84.6	275 of 1915	85.6%	★★★★☆
2022	88.2	204 of 1858	89.0%	★★★★☆
2019	84.8	249 of 1833	86.4%	★★★★☆
2018	86.5	229 of 1760	87.0%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	58.7	740 of 1900	61.1%	★★★☆☆
2024	51.7	869 of 1902	54.3%	★★★☆☆
2023	53.5	822 of 1917	57.1%	★★★☆☆
2022	51.3	802 of 1861	56.9%	★★★☆☆
2019	71.5	409 of 1814	77.5%	★★★★☆
2018	69.0	517 of 1742	70.3%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	52.9	903 of 2013	55.1%	★★★☆☆
2024	34.6	1348 of 2026	33.5%	★★☆☆☆
2023	41.9	1133 of 2030	44.2%	★★☆☆☆
2022	45.2	983 of 1943	49.4%	★★☆☆☆
2019	59.6	689 of 1937	64.4%	★★★☆☆
2018	65.0	623 of 1862	66.5%	★★★☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	81.9	334 of 1942	82.8%	★★★★☆
2024	82.5	326 of 1948	83.3%	★★★★☆
2023	84.3	295 of 1963	85.0%	★★★★☆
2022	80.1	324 of 1916	83.1%	★★★★☆
2019	84.0	267 of 1880	85.8%	★★★★☆
2018	88.7	208 of 1834	88.7%	★★★★☆

Military Connected

Year	Avg score	Statewide rank	California percentile	Rating
2024	36.9	110 of 183	39.9%	★★☆☆☆
2023	39.7	113 of 190	40.5%	★★☆☆☆
2022	51.9	84 of 168	50.0%	★★★☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	82.7	94 of 577	83.7%	★★★★☆
2024	76.2	132 of 574	77.0%	★★★★☆
2023	76.0	116 of 541	78.6%	★★★★☆
2022	70.8	142 of 515	72.4%	★★★★☆
2019	39.6	269 of 422	36.3%	★★☆☆☆
2018	63.3	141 of 366	61.5%	★★★☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	75.0	185 of 1252	85.2%	★★★★☆
2024	63.0	297 of 1216	75.6%	★★★★☆
2023	86.3	96 of 1197	92.0%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	64.8	405 of 1155	64.9%	★★★☆☆
2024	68.0	372 of 1173	68.3%	★★★☆☆
2023	79.3	226 of 1193	81.1%	★★★★☆
2022	84.4	141 of 1204	88.3%	★★★★☆
2019	90.4	76 of 1222	93.8%	★★★★★
2018	84.1	156 of 1173	86.7%	★★★★☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Disabled (2022)91st percentile+4 vs school

Special Education (2025)85th percentile~ school

Multi-racial (2025)84th percentile~ school

Female (2025)83rd percentile~ school

Male (2025)83rd percentile-3 vs school

Asian (2025)83rd percentile-3 vs school

White (2025)65th percentile-21 vs school

Hispanic (2025)61st percentile-24 vs school

Low Socio Economic Status (2025)55th percentile-30 vs school

Military Connected (2024)40th percentile-43 vs school

English Language Learner (2024)16th percentile-67 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy72%+23 vs state

Mathematics42%+5 vs state

Science39%+7 vs state

★

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Schools Near Hillsdale High

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)		Smarter Balanced Assessments Mathematics (2025)		Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Hillsdale High	Public	9-12	3115 Del Monte St.	San Mateo	94403	San Mateo County	San Mateo Union High	No	(n/a)	No	(n/a)	(650) 558-2699	1,585	82	19.3	25.2%	489 (30.9%)	16 (1.0%)	597 (37.7%)	313 (19.7%)	2 (0.1%)	16 (1.0%)	148 (9.3%)	85	314^th of 2162 public high schools	85.5%		82.7	364^th of 2159 public high schools	83.1%	50		39.4	39.4	72.0	72.0	41.9	41.9	$37,679	$36,820	$859
Aragon High	Public	9-12	900 Alameda de Las Pulgas	San Mateo	94402	San Mateo County	San Mateo Union High	No	(n/a)	No	(n/a)	(650) 558-2999	1,658	74	22.3	16.8%	433 (26.1%)	10 (0.6%)	450 (27.1%)	554 (33.4%)	0 (0.0%)	33 (2.0%)	177 (10.7%)	96.1	77^th of 2162 public high schools	96.4%		95.7	95^th of 2159 public high schools	95.6%	18		64.7	64.7	81.7	81.7	59.4	59.4	$33,409	$32,588	$821
Gateway Center	Public	6-12	35 Tower Rd.	San Mateo	94402	San Mateo County	San Mateo County Office of Education	No	(n/a)	No	(n/a)	(650) 598-2150	11	3	3.6	63.6%	1 (9.1%)	0 (0.0%)	9 (81.8%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (9.1%)								(n/a)
Hillcrest at Youth Services Center	Public	5-12	10 Loop Rd.	San Mateo	94402	San Mateo County	San Mateo County Office of Education	No	(n/a)	No	(n/a)	(650) 312-5323	16	4	4.1	81.3%	0 (0.0%)	0 (0.0%)	13 (81.3%)	1 (6.3%)	0 (0.0%)	2 (12.5%)	0 (0.0%)								(n/a)
Margaret J. Kemp	Public	7-12	400 Paul Scannell Dr.	San Mateo	94402	San Mateo County	San Mateo County Office of Education	No	(n/a)	No	(n/a)	(650) 312-5235	0	1	2.5		0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Carlmont High	Public	9-12	1400 Alameda de Las Pulgas	Belmont	94002	San Mateo County	Sequoia Union High	No	(n/a)	No	(n/a)	(650) 595-0210	2,360	120	19.6	9.3%	960 (40.7%)	26 (1.1%)	360 (15.3%)	782 (33.1%)	17 (0.7%)	11 (0.5%)	204 (8.6%)	97	55^th of 2162 public high schools	97.5%		98.2	38^th of 2159 public high schools	98.2%	17	67.5		67.5	85.2	85.2	72.2	72.2	$32,538	$32,188	$350
Design Technical High	Public, Charter	9-12	275 Oracle Pkwy.	Redwood City	94065	San Mateo County	Design Technical High District	Yes	(n/a)	No	(n/a)	(650) 231-2701	567	23	24.5	7.2%	232 (40.9%)	7 (1.2%)	82 (14.5%)	140 (24.7%)	0 (0.0%)	3 (0.5%)	99 (17.5%)	97.7	40^th of 2162 public high schools	98.1%		97.2	65^th of 2159 public high schools	97.0%	25		62.5	62.5	90.1	90.1	63.3	63.3
The Bridge Academy	Public	10-12	798 East Poplar Ave	San Mateo	94401	San Mateo County	San Mateo Union High	No	(n/a)	No	(n/a)	(650) 558-2271	54	5	10.7	83.3%	0 (0.0%)	0 (0.0%)	54 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)								$66,240	$65,390	$850
San Mateo High	Public	9-12	506 North Delaware St.	San Mateo	94401	San Mateo County	San Mateo Union High	No	(n/a)	No	(n/a)	(650) 558-2399	1,557	80	19.5	38.1%	247 (15.9%)	15 (1.0%)	739 (47.5%)	405 (26.0%)	0 (0.0%)	30 (1.9%)	117 (7.5%)	83.9	334^th of 2162 public high schools	84.6%		87	279^th of 2159 public high schools	87.1%	55		43.4	43.4	63.3	63.3	44.3	44.3	$38,757	$37,884	$873
Burlingame High	Public	9-12	1 Mangini Way	Burlingame	94010	San Mateo County	San Mateo Union High	No	(n/a)	No	(n/a)	(650) 558-2899	1,583	81	19.6	13.3%	645 (40.7%)	8 (0.5%)	315 (19.9%)	425 (26.8%)	0 (0.0%)	10 (0.6%)	179 (11.3%)	96.3	73^rd of 2162 public high schools	96.6%		98	43^rd of 2159 public high schools	98.0%	30		61.3	61.3	82.6	82.6	65.8	65.8	$37,574	$36,614	$960

Frequently Asked Questions about Hillsdale High

What district is Hillsdale High in?

San Mateo Union High

How many students attend Hillsdale High?

In the 2024-25 school year, 1,585 students attended Hillsdale High.

What is the racial makeup of Hillsdale High?

Students at Hillsdale High are 38% Hispanic, 31% White, 20% Asian, 9% Two or more races, 1% African American, 1% Pacific Islander.

Is Hillsdale High a good school?

Hillsdale High ranks 314^th of 2162 California high schools. SchoolDigger rates this school 4 stars out of 5.

What schools feed into Hillsdale High?

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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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

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.