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Mountain House High

Public Grades 9-12

105^th

SchoolDigger Rank ?

of 2,135 California High Schools

Better than 95% of California high schools

Summary

Mountain House High is a public high school serving grades 9–12 and 2,428 students in Mountain House, California, within Lammersville Joint Unified. It has the largest enrollment among the nearby schools in this comparison. Its clearest academic strength is that it had the highest reported 2025–26 proficiency in all three subjects among nearby schools, while also scoring well above California in each subject.

Mountain House’s results are strongest in English language arts (ELA) and its main academic gap is against its own district in math and science. In 2025–26, proficiency was 80% in ELA, 64% in math, and 66% in science—31, 26, and 30 percentage points above state results, respectively. Compared with the district, Mountain House was 4 points higher in ELA, but 7 points lower in math and 2 points lower in science. Its leads over the nearby-school averages were 34 points in ELA, 42 in math, and 42 in science. Graduation is another strength: the school’s rate was 99% in 2025–26, versus 88% statewide, and its reported dropout rate was zero in each of the five years provided.

Results have improved since 2022–23, especially in science, which rose each year; ELA and math increased by 2 points each overall but fluctuated along the way. SchoolDigger ranks Mountain House 105th of 2,137 California schools, at the 95th percentile with five stars for 2025–26; nearby John C. Kimball High is next highest among schools with a current-year ranking, at the 79th percentile and four stars. Mountain House’s 2024–25 student-teacher ratio was 25.1, higher than all reported nearby ratios, which ranged from 8.4 to 23.5. Its free/reduced lunch eligible share was 10.8% in 2024–25, below the 22.5%–86.8% reported by nearby schools with the same measure and year. SchoolDigger’s statewide ranking for how well the school serves Special Education Students rose from the 20th percentile in 2023–24 to the 74th in 2025–26; its ranking for African American Students fell from the 81st percentile in 2023–24 to the 62nd in 2025–26. These subgroup rankings are school-level indicators, not a direct account of every student’s experience.

2,428

Students ?

25.1

Student/teacher ratio ?

$18,519

Per pupil spending ?

10.8%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

1090 South Central Pkwy.
Mountain House, CA 95391-1353

(209) 836-7460

District: Lammersville Joint Unified

Feeder schools for Mountain House High:

Elementary:	Altamont Elementary
	Bethany Elementary
	Hansen Elementary
	Julius Cordes Elementary
	More...
	Lammersville Elementary
	Sebastian Questa Elementary
	Wicklund Elementary

Racial breakdown:

Asian:

61.9%

White:

13.2%

Hispanic:

12.3%

See top rated California high schools

Compare Mountain House High to nearby high schools!

At a glance

▲ Ranking trend: Improving — 84th percentile in 2016 → 95th in 2026

Strengths

✓Test scores above the California average (70% vs 42% meeting standards)

✓Ranks in the top 5% 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

!Large classes — about 25 students per teacher

Students meeting standards (2025-2026) ?

This school70%

District avg73%

California avg42%

105^th of 2,135

California public high schools ?

Top 5%▲ up 11 pts since 2016

From top 16% (2016) to top 5% (2026)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

94^th of 1,530Lammersville Joint 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	94.6	105 of 2135	95.1%	★★★★★
2025	95.6	85 of 2162	96.1%	★★★★★
2024	94.3	124 of 2159	94.3%	★★★★★
2023	95.1	108 of 2170	95.0%	★★★★★
2022	92.5	159 of 2123	92.5%	★★★★★
2021	90.8	122 of 1290	90.5%	★★★★★
2019	84.2	288 of 2133	86.5%	★★★★☆
2018	90.2	196 of 2017	90.3%	★★★★★
2017	84.6	325 of 2021	83.9%	★★★★☆
2016	83.6	318 of 2039	84.4%	★★★★☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2026	55.3	186 of 492	62.2%	★★★☆☆
2025	66.1	144 of 523	72.5%	★★★★☆
2024	75.1	98 of 517	81.0%	★★★★☆
2023	88.8	48 of 521	90.8%	★★★★★
2022	75.3	93 of 522	82.2%	★★★★☆
2019	73.2	120 of 592	79.7%	★★★★☆
2018	78.1	119 of 582	79.6%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2026	82.1	75 of 575	87.0%	★★★★☆
2025	81.2	98 of 585	83.2%	★★★★☆
2024	80.9	91 of 573	84.1%	★★★★☆
2023	82.2	91 of 591	84.6%	★★★★☆
2022	76.4	142 of 581	75.6%	★★★★☆
2019	77.7	120 of 582	79.4%	★★★★☆
2018	74.1	168 of 581	71.1%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	55.5	335 of 1161	71.1%	★★★★☆
2021	44.2	253 of 555	54.4%	★★★☆☆
2019	51.3	397 of 1117	64.5%	★★★☆☆
2018	49.6	394 of 1052	62.5%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	49.7	352 of 1085	67.6%	★★★☆☆
2023	76.8	78 of 1064	92.7%	★★★★★
2022	97.0	13 of 1044	98.8%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	93.3	94 of 1864	95.0%	★★★★★
2025	95.0	74 of 1906	96.1%	★★★★★
2024	92.9	126 of 1915	93.4%	★★★★★
2023	94.5	105 of 1915	94.5%	★★★★★
2022	90.9	166 of 1858	91.1%	★★★★★
2021	92.6	69 of 1054	93.5%	★★★★★
2019	77.2	368 of 1833	79.9%	★★★★☆
2018	89.4	170 of 1760	90.3%	★★★★★

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	71.8	452 of 1880	76.0%	★★★★☆
2025	75.1	394 of 1900	79.3%	★★★★☆
2024	76.3	368 of 1902	80.7%	★★★★☆
2023	88.8	157 of 1917	91.8%	★★★★★
2022	81.9	232 of 1861	87.5%	★★★★☆
2019	76.5	319 of 1814	82.4%	★★★★☆
2018	67.7	536 of 1742	69.2%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	77.9	385 of 1997	80.7%	★★★★☆
2025	85.8	230 of 2013	88.6%	★★★★☆
2024	73.7	430 of 2026	78.8%	★★★★☆
2023	86.1	234 of 2030	88.5%	★★★★☆
2022	71.3	420 of 1943	78.4%	★★★★☆
2021	75.2	231 of 1126	79.5%	★★★★☆
2019	72.1	435 of 1937	77.5%	★★★★☆
2018	80.2	319 of 1862	82.9%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	94.2	112 of 1930	94.2%	★★★★★
2025	95.0	92 of 1942	95.3%	★★★★★
2024	94.1	119 of 1948	93.9%	★★★★★
2023	95.1	111 of 1963	94.3%	★★★★★
2022	92.6	141 of 1916	92.6%	★★★★★
2021	83.8	180 of 1122	84.0%	★★★★☆
2019	86.3	225 of 1880	88.0%	★★★★☆
2018	88.4	215 of 1834	88.3%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2026	60.7	243 of 588	58.7%	★★★☆☆
2025	63.1	212 of 577	63.3%	★★★☆☆
2024	19.4	460 of 574	19.9%	★☆☆☆☆
2023	60.1	222 of 541	59.0%	★★★☆☆
2022	42.3	307 of 515	40.4%	★★☆☆☆
2019	44.8	253 of 422	40.0%	★★☆☆☆
2018	38.6	240 of 366	34.4%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	61.5	325 of 1235	73.7%	★★★★☆
2025	31.2	851 of 1252	32.0%	★★☆☆☆
2024	24.7	976 of 1216	19.7%	★☆☆☆☆
2023	60.3	307 of 1197	74.4%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	62.1	447 of 1130	60.4%	★★★☆☆
2025	82.1	169 of 1155	85.4%	★★★★☆
2024	70.5	338 of 1173	71.2%	★★★★☆
2023	71.8	323 of 1193	72.9%	★★★★☆
2022	66.5	369 of 1204	69.4%	★★★☆☆
2019	52.2	593 of 1222	51.5%	★★★☆☆
2018	76.1	284 of 1173	75.8%	★★★★☆

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)

Female (2026)95th percentile~ school

Male (2026)94th percentile~ school

Asian (2026)87th percentile-8 vs school

Low Socio Economic Status (2026)81st percentile-14 vs school

Hispanic (2026)76th percentile-19 vs school

Special Education (2026)74th percentile-21 vs school

Disabled (2022)71st percentile-21 vs school

English Language Learner (2024)68th percentile-27 vs school

African American (2026)62nd percentile-33 vs school

White (2026)60th percentile-35 vs school

Multi-racial (2026)59th percentile-36 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy80%+31 vs state

Science66%+30 vs state

Mathematics64%+26 vs state

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Schools Near Mountain House 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 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 7th 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
Mountain House High	Public	9-12	1090 South Central Pkwy.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7460	2,428	96	25.1	10.8%	320 (13.2%)	127 (5.2%)	298 (12.3%)	1,504 (61.9%)	15 (0.6%)	11 (0.5%)	150 (6.2%)	94.6	105^th of 2135 public high schools	95.1%		95.6	85^th of 2162 public high schools	96.1%	20	66.4		65.6		80.4	80.4		63.9	63.9	$18,519	$18,326	$193
John C. Kimball High	Public	9-12	3200 Jaguar Run	Tracy	95377	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 832-6600	1,587	67	23.5	53.7%	255 (16.1%)	96 (6.0%)	536 (33.8%)	581 (36.6%)	6 (0.4%)	16 (1.0%)	89 (5.6%)	78.4	447^th of 2135 public high schools	79.1%		74.6	499^th of 2162 public high schools	76.9%	52	31.1	56.6	41.9		70.9	70.9		44.7	44.7	$19,152	$18,822	$330
Merrill F. West High	Public	9-12	1775 West Lowell Ave.	Tracy	95376	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 830-3370	1,920	90	21.4	75.8%	219 (11.4%)	89 (4.6%)	1,113 (58.0%)	391 (20.4%)	8 (0.4%)	27 (1.4%)	68 (3.5%)	53.2	967^th of 2135 public high schools	54.7%		58.5	861^st of 2162 public high schools	60.2%	106	31.1		30.6		60.1	60.1		21.5	21.5	$21,043	$20,510	$533
George and Evelyn Stein Continuation	Public	9-12	650 West 10th St.	Tracy	95376	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 830-3395	121	10	11.7	86.8%	19 (15.7%)	9 (7.4%)	77 (63.6%)	7 (5.8%)	1 (0.8%)	1 (0.8%)	6 (5.0%)	10.1	1949^th of 2135 public high schools	8.7%		11.2	1955^th of 2162 public high schools	9.6%	6	5.9	0.0	3.7		11.4	11.4		2.9	2.9	$53,715	$51,890	$1,825
Duncan-Russell Community Day	Public	7-12	650 W. 10th St.	Tracy	95376	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 830-3395	22	3	8.4	86.4%	4 (18.2%)	5 (22.7%)	12 (54.5%)	0 (0.0%)	0 (0.0%)	1 (4.5%)	0 (0.0%)								(n/a)										$94,175	$88,484	$5,691
Millennium Charter	Public, Charter	9-12	51 East Beverly Pl.	Tracy	95376	San Joaquin County	Millennium Charter District	Yes	(n/a)	No	(n/a)	(209) 290-0511	436	27	16.2	22.5%	79 (18.1%)	20 (4.6%)	242 (55.5%)	72 (16.5%)	0 (0.0%)	0 (0.0%)	23 (5.3%)	78.4	446^th of 2135 public high schools	79.1%		86.7	269^th of 2162 public high schools	87.6%	177	54.4		54.4		63.4	63.4		38.7	38.7
Tracy High	Public	9-12	315 East 11th St.	Tracy	95376	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 830-3360	1,739	79	22.1	62.7%	357 (20.5%)	64 (3.7%)	959 (55.1%)	248 (14.3%)	9 (0.5%)	15 (0.9%)	81 (4.7%)	52.4	984^th of 2135 public high schools	53.9%		54.2	944^th of 2162 public high schools	56.3%	40		24.1	24.1		54.3	54.3		22.3	22.3	$21,918	$21,526	$392
River Islands High	Public, Charter	9-12	16601 Riptide Way	Lathrop	95330	San Joaquin County	River Islands High District	Yes	(n/a)	No	(n/a)	(209) 717-6715	512	28	18.5	37.9%	41 (8.0%)	56 (10.9%)	153 (29.9%)	245 (47.9%)	5 (1.0%)	7 (1.4%)	5 (1.0%)	49.8	1039^th of 2135 public high schools	51.3%		60.8	802^nd of 2162 public high schools	62.9%	237	19.3		19.4		56.1	56.1		29.9	29.9	$25,997	$25,630	$367
La Paloma High (Continuation)	Public	9-12	400 Ghiggeri Way	Brentwood	94513	Contra Costa County	Liberty Union High	No	(n/a)	No	(n/a)	(925) 634-2888	178	12	14.4	64.6%	35 (19.7%)	21 (11.8%)	104 (58.4%)	9 (5.1%)	3 (1.7%)	0 (0.0%)	4 (2.2%)	10.5	1920^th of 2135 public high schools	10.1%		11.1	1962^nd of 2162 public high schools	9.3%	42	8.9		8.0		12.0	12.0		2.0	2.0	$31,806	$29,766	$2,040
Livermore High	Public	9-12	600 Maple St.	Livermore	94550	Alameda County	Livermore Valley Joint Unified	No	(n/a)	No	(n/a)	(925) 606-4812	1,827	85	21.4	23.5%	733 (40.1%)	34 (1.9%)	648 (35.5%)	253 (13.8%)	0 (0.0%)	5 (0.3%)	152 (8.3%)	63.2	749^th of 2135 public high schools	64.9%		68.2	631^st of 2162 public high schools	70.8%	118	37.4		37.1		54.2	54.2		35.3	35.3	$19,945	$19,680	$265

Frequently Asked Questions about Mountain House High

What is the racial makeup of Mountain House High?

Students at Mountain House High are 62% Asian, 13% White, 12% Hispanic, 6% Two or more races, 5% African American.

What schools feed into Mountain House High?

Mountain House High is fed by the following schools:

Elementary : Altamont Elementary
Elementary : Bethany Elementary
Elementary : Hansen Elementary
Elementary : Julius Cordes Elementary
Elementary : Lammersville Elementary
Elementary : Sebastian Questa Elementary
Elementary : Wicklund Elementary

Is Mountain House High a good school?

Yes! Mountain House High is one of the best high schools in the state. It ranks 105^th of 2135 California high schools.

What district is Mountain House High in?

Lammersville Joint Unified

How many students attend Mountain House High?

In the 2024-25 school year, 2,428 students attended Mountain House High.

Rate Mountain House High!

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Latest California data All new data »

2013–14 through 2024–25 immunization rates (updated)NewOct 19, 2026

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

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.