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San Dimas High

Public Grades 9-12

176^th

SchoolDigger Rank ?

of 2,137 California High Schools

Better than 92% of California high schools

Summary

San Dimas High is a public high school serving grades 9–12, with 1,235 students in San Dimas and Bonita Unified. Its overall results are strong compared with California and nearby comprehensive high schools, but the most important concern for parents to note is that math proficiency is substantially below the district’s result.

English and science are standouts against nearby comprehensive-school averages, while math is a relative weakness. In 2025–2026, 81% of students were proficient in English language arts (ELA), 50% in math, and 60% in science. Among six nearby comprehensive high schools, San Dimas ranked third in ELA, fourth in math, and second in science; its results were 12 points above the peer average in ELA, 4 points above in math, and 15 points above in science. Compared with the district, San Dimas was 8 points ahead in ELA, 14 points behind in math, and essentially even in science. It exceeded state results in all three subjects, by 31 points in ELA, 12 in math, and 24 in science.

Science has improved especially sharply: proficiency rose 25 points from 2022–2023 to 2025–2026, compared with a 6-point increase statewide. ELA and math also rose over that period, but by only 2 points each. SchoolDigger places San Dimas in the 92nd statewide percentile for 2025–2026, with 5 stars, up from the 84th percentile in 2021–2022. The 2024–2025 student-teacher ratio was 21.4, below the nearby-school average of 23; 38% of students were free/reduced lunch eligible that year. SchoolDigger’s statewide standing for Special Education Students was 69th percentile, notably below the school’s overall 92nd percentile. Its ranking for Multi-racial Students rose from the 51st percentile in 2023–2024 to the 84th in 2025–2026, indicating a marked improvement in the school’s comparative standing for that group.

1,235

Students ?

21.4

Student/teacher ratio ?

$18,375

Per pupil spending ?

37.6%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

800 West Covina Blvd.
San Dimas, CA 91773-1473

(909) 971-8230

District: Bonita Unified

Feeder schools for San Dimas High:

Elementary:	Arma J. Shull Elementary
	Fred Ekstrand Elementary
	Gladstone Elementary
Middle:	Lone Hill Middle

Racial breakdown:

Hispanic:

59.5%

White:

17.8%

Asian:

10.7%

See top rated California high schools

Compare San Dimas High to nearby high schools!

At a glance

▲ Ranking trend: Improving — 74th percentile in 2016 → 92nd in 2026

Strengths

✓Test scores above the California average (63% vs 42% meeting standards)

✓Ranks in the top 8% of California high schools

✓99% 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 (2025-2026) ?

This school63%

District avg67%

California avg42%

176^th of 2,137

California public high schools ?

Top 8%▲ up 17 pts since 2016

From top 26% (2016) to top 8% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

2^nd of 3High Schools in the Bonita Unified

122^nd of 968Bonita Unified 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
2026	91.2	176 of 2137	91.8%	★★★★★
2025	89.6	204 of 2162	90.6%	★★★★★
2024	85.8	312 of 2159	85.5%	★★★★☆
2023	85.3	312 of 2170	85.6%	★★★★☆
2022	81.7	335 of 2123	84.2%	★★★★☆
2021	97.0	32 of 1290	97.5%	★★★★★
2019	83.4	302 of 2133	85.8%	★★★★☆
2018	84.8	316 of 2017	84.3%	★★★★☆
2017	85.3	308 of 2021	84.8%	★★★★☆
2016	71.9	520 of 2039	74.5%	★★★★☆
2015	84.6	279 of 1994	86.0%	★★★★☆
2013	73.5	244 of 2426	89.9%	★★★★☆
2012	66.9	366 of 2354	84.5%	★★★★☆
2011	70.5	295 of 2367	87.5%	★★★★☆
2010	63.4	433 of 2281	81.0%	★★★★☆
2009	62.0	409 of 2238	81.7%	★★★★☆
2008	55.7	557 of 2117	73.7%	★★★★☆
2007	53.8	566 of 2063	72.6%	★★★★☆
2006	58.7	488 of 1968	75.2%	★★★★☆
2005	58.1	446 of 1901	76.5%	★★★★☆
2004	59.6	349 of 1653	78.9%	★★★★☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2025	72.6	107 of 523	79.5%	★★★★☆
2019	91.7	27 of 592	95.4%	★★★★★
2018	96.5	22 of 582	96.2%	★★★★★

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2026	85.7	44 of 575	92.3%	★★★★★
2025	88.1	29 of 585	95.0%	★★★★★
2024	73.7	170 of 573	70.3%	★★★★☆
2023	62.2	266 of 591	55.0%	★★★☆☆
2022	78.8	114 of 581	80.4%	★★★★☆
2019	52.9	312 of 582	46.4%	★★☆☆☆
2018	90.1	20 of 581	96.6%	★★★★★

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	70.0	198 of 1161	82.9%	★★★★☆
2019	43.5	502 of 1117	55.1%	★★★☆☆
2018	44.5	462 of 1052	56.1%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	68.0	130 of 1085	88.0%	★★★★☆
2022	69.7	110 of 1044	89.5%	★★★★☆
2019	77.1	83 of 941	91.2%	★★★★★
2018	95.0	43 of 938	95.4%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	91.1	138 of 1865	92.6%	★★★★★
2025	89.4	175 of 1906	90.8%	★★★★★
2024	84.4	285 of 1915	85.1%	★★★★☆
2023	83.0	299 of 1915	84.4%	★★★★☆
2022	80.6	313 of 1858	83.2%	★★★★☆
2019	82.5	278 of 1833	84.8%	★★★★☆
2018	79.7	358 of 1760	79.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	94.7	65 of 1880	96.5%	★★★★★
2025	92.2	105 of 1900	94.5%	★★★★★
2024	89.9	140 of 1902	92.6%	★★★★★
2023	90.7	140 of 1917	92.7%	★★★★★
2022	85.8	181 of 1861	90.3%	★★★★★
2019	80.4	261 of 1814	85.6%	★★★★☆
2018	83.8	250 of 1742	85.6%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	93.2	105 of 1999	94.7%	★★★★★
2025	90.6	149 of 2013	92.6%	★★★★★
2024	86.3	239 of 2026	88.2%	★★★★☆
2023	81.3	314 of 2030	84.5%	★★★★☆
2022	78.9	298 of 1943	84.7%	★★★★☆
2019	74.9	388 of 1937	80.0%	★★★★☆
2018	68.8	549 of 1862	70.5%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	90.1	179 of 1932	90.7%	★★★★★
2025	89.8	187 of 1942	90.4%	★★★★★
2024	84.1	298 of 1948	84.7%	★★★★☆
2023	83.7	307 of 1963	84.4%	★★★★☆
2022	80.1	323 of 1916	83.1%	★★★★☆
2019	79.4	339 of 1880	82.0%	★★★★☆
2018	85.9	269 of 1834	85.3%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2026	82.1	93 of 588	84.2%	★★★★☆
2025	68.2	183 of 577	68.3%	★★★☆☆
2024	52.3	282 of 574	50.9%	★★★☆☆
2023	60.1	223 of 541	58.8%	★★★☆☆
2022	48.6	274 of 515	46.8%	★★☆☆☆
2019	65.7	144 of 422	65.9%	★★★☆☆
2018	46.3	215 of 366	41.3%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	56.5	389 of 1235	68.5%	★★★☆☆
2025	64.0	316 of 1252	74.8%	★★★★☆
2024	39.7	619 of 1216	49.1%	★★☆☆☆
2023	56.8	342 of 1197	71.4%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	73.7	286 of 1132	74.7%	★★★★☆
2025	80.2	202 of 1155	82.5%	★★★★☆
2024	78.8	224 of 1173	80.9%	★★★★☆
2023	72.4	314 of 1193	73.7%	★★★★☆
2022	65.0	392 of 1204	67.4%	★★★☆☆
2019	73.3	284 of 1222	76.8%	★★★★☆
2018	75.5	298 of 1173	74.6%	★★★★☆

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)

Hispanic (2026)97th percentile+5 vs school

Low Socio Economic Status (2026)95th percentile+3 vs school

Female (2026)93rd percentile~ school

Asian (2026)92nd percentile~ school

Male (2026)91st percentile~ school

English Language Learner (2024)88th percentile~ school

Multi-racial (2026)84th percentile-8 vs school

Disabled (2022)83rd percentile~ school

African American (2025)80th percentile-11 vs school

White (2026)75th percentile-17 vs school

Special Education (2026)69th percentile-23 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy81%+31 vs state

Science60%+24 vs state

Mathematics50%+12 vs state

★

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Schools Near San Dimas 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 (2026)				Ranking (2025)				CAST Science (2026)					Smarter Balanced Assessments English Language Arts/Literacy (2026)			Smarter Balanced Assessments Mathematics (2026)			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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 8th Grade	CAST Science 10th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 8th Grade	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
San Dimas High	Public	9-12	800 West Covina Blvd.	San Dimas	91773	Los Angeles County	Bonita Unified	No	(n/a)	No	(n/a)	(909) 971-8230	1,235	58	21.4	37.6%	220 (17.8%)	37 (3.0%)	735 (59.5%)	132 (10.7%)	0 (0.0%)	0 (0.0%)	110 (8.9%)	91.2	176^th of 2137 public high schools	91.8%		89.6	204^th of 2162 public high schools	90.6%	28		60.5		38.5	59.5		80.6	80.6		50.4	50.4	$18,375	$17,972	$403
Arrow High (Continuation)	Public	9-12	1505 South Sunflower Ave.	Glendora	91740	Los Angeles County	Charter Oak Unified	No	(n/a)	No	(n/a)	(626) 914-3961	71	5	13.3	85.9%	6 (8.5%)	1 (1.4%)	60 (84.5%)	1 (1.4%)	1 (1.4%)	0 (0.0%)	2 (2.8%)	12.2	1838^th of 2137 public high schools	14.0%		10.9	1969^th of 2162 public high schools	8.9%	131			5.3		4.6		5.3	5.3		10.5	10.5	$41,157	$36,200	$4,957
Bridges Community Day	Public	7-12	1505 South Sunflower Ave.	Glendora	91740	Los Angeles County	Charter Oak Unified	No	(n/a)	No	(n/a)	(626) 914-3961	1	2	.6	—	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)
Chaparral High (Continuation)	Public	9-12	121 West Allen Ave.	San Dimas	91773	Los Angeles County	Bonita Unified	No	(n/a)	No	(n/a)	(909) 971-8240	54	11	5.0	61.1%	5 (9.3%)	1 (1.9%)	47 (87.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (1.9%)	8.2	2044^th of 2137 public high schools	4.4%		12.1	1912^th of 2162 public high schools	11.6%	132							10.0	10.0		0.0	0.0	$84,642	$83,350	$1,292
Charter Oak High	Public	9-12	1430 East Covina Blvd.	Covina	91724	Los Angeles County	Charter Oak Unified	No	(n/a)	No	(n/a)	(626) 915-5841	1,259	57	22.0	69.5%	143 (11.4%)	39 (3.1%)	946 (75.1%)	94 (7.5%)	5 (0.4%)	0 (0.0%)	29 (2.3%)	60.2	812^th of 2137 public high schools	62.0%		57.9	879^th of 2162 public high schools	59.3%	67			38.9		38.0		55.6	55.6		27.9	27.9	$21,833	$20,552	$1,281
Glendora High	Public	9-12	1600 East Foothill Blvd.	Glendora	91741	Los Angeles County	Glendora Unified	No	(n/a)	No	(n/a)	(626) 963-5731	2,069	86	24.1	21.2%	624 (30.2%)	36 (1.7%)	1,002 (48.4%)	276 (13.3%)	4 (0.2%)	1 (0.0%)	125 (6.0%)	75.6	510^th of 2137 public high schools	76.1%		83.6	345^th of 2162 public high schools	84.0%	165		27.5	40.0		37.6		67.0	67.0		51.8	51.8	$21,558	$20,042	$1,516
Ganesha High	Public	9-12	1151 Fairplex Dr.	Pomona	91768	Los Angeles County	Pomona Unified	No	(n/a)	No	(n/a)	(909) 397-4400	895	44	20.2	91.8%	19 (2.1%)	20 (2.2%)	830 (92.7%)	10 (1.1%)	2 (0.2%)	2 (0.2%)	11 (1.2%)	43.4	1190^th of 2137 public high schools	44.3%		22	1651^st of 2162 public high schools	23.6%	461			25.1	27.3	25.1		42.6	42.6		26.1	26.1	$34,847	$33,534	$1,313
Rockey Glenn Camp	Public	7-12	1900 North Sycamore Canyon Rd.	San Dimas	90242	Los Angeles County	Los Angeles County Office of Education	No	(n/a)	No	(n/a)	(909) 599-8435	27	4	7.0	88.9%	1 (3.7%)	6 (22.2%)	20 (74.1%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	6.6	2111^th of 2137 public high schools	1.2%					(n/a)							0.0	0.0		0.0	0.0	$44,882	$36,002	$8,880
Whitcomb Continuation High	Public	9-12	350 West Mauna Loa Ave.	Glendora	91740	Los Angeles County	Glendora Unified	No	(n/a)	No	(n/a)	(626) 852-4550	104	10	10.7	44.2%	31 (29.8%)	1 (1.0%)	61 (58.7%)	3 (2.9%)	0 (0.0%)	0 (0.0%)	6 (5.8%)	8.9	2014^th of 2137 public high schools	5.8%		13.4	1865^th of 2162 public high schools	13.7%	149			3.7		3.6		14.3	14.3		0.0	0.0	$57,097	$56,102	$995
International Polytechnic High	Public	9-12	3851 West Temple Ave. Bldg. 12	Pomona	91768	Los Angeles County	Los Angeles County Office of Education	No	(n/a)	No	(n/a)	(909) 839-2320	458	22	20.6	26.9%	18 (3.9%)	11 (2.4%)	296 (64.6%)	109 (23.8%)	0 (0.0%)	1 (0.2%)	21 (4.6%)	93.7	120^th of 2137 public high schools	94.4%		91	182^nd of 2162 public high schools	91.6%	62			57.7		57.7		88.7	88.7		59.8	59.8	$30,936	$30,402	$534

Frequently Asked Questions about San Dimas High

What schools feed into San Dimas High?

San Dimas High is fed by the following schools:

Elementary : Arma J. Shull Elementary
Elementary : Fred Ekstrand Elementary
Elementary : Gladstone Elementary
Middle : Lone Hill Middle

What district is San Dimas High in?

Bonita Unified

What is the racial makeup of San Dimas High?

Students at San Dimas High are 60% Hispanic, 18% White, 11% Asian, 9% Two or more races, 3% African American.

How many students attend San Dimas High?

In the 2024-25 school year, 1,235 students attended San Dimas High.

Is San Dimas High a good school?

Yes. San Dimas High ranks in the top 8.2% of California high schools.

Rate San Dimas High!

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

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.