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Sebastian Questa Elementary

Q: Is Sebastian Questa Elementary a good school?

Sebastian Questa Elementary ranks 601 st of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades K-8

601^st

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 90% of California elementary schools

Summary

Sebastian Questa Elementary is a high-performing K-8 public school serving 822 students in the master-planned community of Mountain House, operating within the top-rated Lammersville Joint Unified School District.

Academically, the school is very strong, consistently ranking in the 90th percentile statewide and significantly outperforming California averages, with over 72% of students proficient in math and 75% in English. It shows particular strength in supporting English Learner students and demonstrates effective science instruction in the middle school grades. While it is an excellent school, it ranks in the middle among its own district's exceptional schools, with peers like Julius Cordes Elementary and Hansen Elementary achieving slightly higher test scores.

An interesting finding is that within this high-achieving district, factors like per-student spending and class size show little correlation with performance, suggesting school culture and teaching quality are key drivers. For Sebastian Questa, a focus on further reducing chronic absenteeism, which is currently 7.3%, could be a pathway to matching the performance of the district's very top schools, as better attendance strongly correlates with higher achievement across the Lammersville Joint Unified district.

822

Students ?

22.2

Student/teacher ratio ?

$16,951

Per pupil spending ?

8.2%

Free/discounted lunch ?

685 North Montebello St.
Mountain House, CA 95391-1241

(209) 836-7230

District: Lammersville Joint Unified

Students who attend Sebastian Questa Elementary usually attend:

High:

Mountain House High

Racial breakdown:

Asian:

64.8%

Hispanic:

12.7%

White:

9.9%

See top rated California elementary schools

Compare Sebastian Questa Elementary to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 73rd percentile in 2013 → 90th in 2025

Strengths

✓Test scores above the California average (73% vs 41% meeting standards)

✓Ranks in the top 10% of California elementary schools

✓Ranking is trending up — up 17 percentile points since 2013

Worth a look

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

!Large classes — about 22 students per teacher

Students meeting standards (2024-2025) ?

This school73%

District avg72%

California avg41%

Elementary school

601^st of 5,857

California public elementary schools ?

Top 10%▲ up 9 pts since 2015

From top 19% (2015) to top 10% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

88^th of 2,761

California public middle schools ?

Top 3%▲ up 25 pts since 2015

From top 28% (2015) to top 3% (2025)

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

4^th of 8Elementary Schools in the Lammersville Joint Unified

103^rd of 1,543Lammersville 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)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	91.2	601 of 5857	89.7%	★★★★☆
2024	92.3	551 of 5869	90.6%	★★★★★
2023	92.2	557 of 5859	90.5%	★★★★★
2022	93.4	486 of 5883	91.7%	★★★★★
2019	87.8	760 of 5789	86.9%	★★★★☆
2018	87.9	745 of 5662	86.8%	★★★★☆
2017	81.3	1069 of 5692	81.2%	★★★★☆
2016	78.1	1198 of 5614	78.7%	★★★★☆
2015	81.0	1072 of 5611	80.9%	★★★★☆
2013	71.7	1495 of 5530	73.0%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	69.6	403 of 1203	66.5%	★★★☆☆
2024	67.7	456 of 1205	62.2%	★★★☆☆
2023	63.5	543 of 1190	54.4%	★★★☆☆
2022	71.3	356 of 1154	69.2%	★★★☆☆
2019	66.8	442 of 1149	61.5%	★★★☆☆
2018	66.5	434 of 1071	59.5%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	95.7	50 of 3162	98.4%	★★★★★
2023	93.1	97 of 3245	97.0%	★★★★★
2022	99.5	25 of 3311	99.2%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	91.4	486 of 5597	91.3%	★★★★★
2024	94.1	351 of 5612	93.7%	★★★★★
2023	93.3	415 of 5609	92.6%	★★★★★
2022	93.5	410 of 5635	92.7%	★★★★★
2019	90.2	552 of 5492	89.9%	★★★★☆
2018	88.0	667 of 5413	87.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	76.7	880 of 5107	82.8%	★★★★☆
2024	92.2	277 of 5107	94.6%	★★★★★
2023	91.1	313 of 5087	93.8%	★★★★★
2022	89.7	370 of 5084	92.7%	★★★★★
2019	89.3	330 of 4963	93.4%	★★★★★
2018	79.7	703 of 4830	85.4%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2024	80.9	789 of 5517	85.7%	★★★★☆
2023	69.0	1270 of 5363	76.3%	★★★★☆
2019	38.8	3211 of 5173	37.9%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	88.3	673 of 5628	88.0%	★★★★☆
2024	87.0	768 of 5643	86.4%	★★★★☆
2023	88.4	704 of 5638	87.5%	★★★★☆
2022	90.5	597 of 5663	89.5%	★★★★☆
2019	82.2	959 of 5510	82.6%	★★★★☆
2018	84.8	843 of 5431	84.5%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	69.1	820 of 2598	68.4%	★★★☆☆
2024	57.2	1209 of 2651	54.4%	★★★☆☆
2023	75.0	618 of 2661	76.8%	★★★★☆
2022	66.5	937 of 2726	65.6%	★★★☆☆
2019	47.0	1650 of 2834	41.8%	★★☆☆☆
2018	61.0	1170 of 2737	57.3%	★★★☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	96.9	88 of 2761	96.8%	★★★★★
2024	95.5	135 of 2783	95.1%	★★★★★
2023	93.4	190 of 2781	93.2%	★★★★★
2022	92.0	223 of 2740	91.9%	★★★★★
2019	87.6	315 of 2715	88.4%	★★★★☆
2018	86.7	315 of 2480	87.3%	★★★★☆
2017	90.4	235 of 2508	90.6%	★★★★★
2016	78.5	476 of 2497	80.9%	★★★★☆
2015	67.4	705 of 2477	71.5%	★★★★☆
2013	82.4	253 of 2379	89.4%	★★★★☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2019	66.5	178 of 643	72.3%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	81.9	91 of 739	87.7%	★★★★☆
2024	74.3	192 of 743	74.2%	★★★★☆
2023	69.7	240 of 715	66.4%	★★★☆☆
2022	70.9	227 of 733	69.0%	★★★☆☆
2019	69.7	249 of 745	66.6%	★★★☆☆
2018	61.2	327 of 700	53.3%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2019	25.6	1176 of 1491	21.1%	★☆☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	96.7	64 of 2533	97.5%	★★★★★
2024	94.9	132 of 2551	94.8%	★★★★★
2023	94.2	149 of 2531	94.1%	★★★★★
2022	92.1	187 of 2509	92.5%	★★★★★
2019	83.6	348 of 2380	85.4%	★★★★☆
2018	83.0	345 of 2262	84.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.8	188 of 2395	92.2%	★★★★★
2024	84.2	231 of 2388	90.3%	★★★★★
2023	80.5	307 of 2374	87.1%	★★★★☆
2022	81.1	281 of 2359	88.1%	★★★★☆
2019	70.5	481 of 2213	78.3%	★★★★☆
2018	76.5	335 of 2072	83.8%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.1	221 of 2542	91.3%	★★★★★
2024	78.7	373 of 2579	85.5%	★★★★☆
2023	62.8	678 of 2531	73.2%	★★★★☆
2022	52.7	936 of 2458	61.9%	★★★☆☆
2019	72.4	445 of 2369	81.2%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	96.0	110 of 2534	95.7%	★★★★★
2024	94.2	156 of 2552	93.9%	★★★★★
2023	88.0	290 of 2538	88.6%	★★★★☆
2022	88.5	281 of 2527	88.9%	★★★★☆
2019	88.9	266 of 2407	88.9%	★★★★☆
2018	87.2	281 of 2273	87.6%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2023	59.8	582 of 1543	62.3%	★★★☆☆
2022	60.5	576 of 1555	63.0%	★★★☆☆
2019	61.1	614 of 1602	61.7%	★★★☆☆
2018	71.4	423 of 1496	71.7%	★★★★☆

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)

Elementary school

English Language Learner (2024)98th percentile+8 vs school

Female (2025)91st percentile~ school

Male (2025)88th percentile~ school

Low Socio Economic Status (2024)86th percentile-5 vs school

Hispanic (2025)83rd percentile-7 vs school

White (2025)68th percentile-21 vs school

Asian (2025)67th percentile-23 vs school

Middle school

Female (2025)97th percentile~ school

Male (2025)96th percentile~ school

Hispanic (2025)92nd percentile-5 vs school

Low Socio Economic Status (2025)91st percentile-6 vs school

Asian (2025)88th percentile-9 vs school

African American (2019)72nd percentile-16 vs school

White (2023)62nd percentile-31 vs school

Disabled (2019)21st percentile-67 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy75%+26 vs state

Mathematics72%+35 vs state

Science65%+33 vs state

5.0

1 rating

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Schools Near Sebastian Questa Elementary

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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 Immunizations 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)							% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	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 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Sebastian Questa Elementary	Public	K-8	685 North Montebello St.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7230	822	37	22.2	8.2%	81 (9.9%)	32 (3.9%)	104 (12.7%)	533 (64.8%)	5 (0.6%)	0 (0.0%)	67 (8.2%)	91.2	601^st of 5857 public elementary schools	89.7%		92.3	551^st of 5869 public elementary schools	90.6%	50	54.9	73.8	65.4	69.6	71.1	71.6	82.9	76.5	77.7	75.3	67.4	68.7	64.6	78.1	74.5	77.7	72.3							$16,951	$16,748	$203
Altamont Elementary	Public	K-8	452 West Saint Francis St.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7240	616	27	22.9	12.7%	84 (13.6%)	43 (7.0%)	111 (18.0%)	312 (50.6%)	2 (0.3%)	4 (0.6%)	60 (9.7%)	86.6	840^th of 5857 public elementary schools	85.7%		88.4	795^th of 5869 public elementary schools	86.5%	45	65.1	63.2	63.9	52.2	63.5	84.1	65.6	79.0	69.5	70.4	61.7	66.2	66.7	59.4	65.3	65.3	64.3	97.2					97.2	$17,677	$17,502	$175
Bethany Elementary	Public	K-8	570 Escuela Dr.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7250	768	33	23.5	16.1%	129 (16.8%)	32 (4.2%)	152 (19.8%)	367 (47.8%)	6 (0.8%)	4 (0.5%)	78 (10.2%)	89.2	707^th of 5857 public elementary schools	87.9%		88.5	787^th of 5869 public elementary schools	86.6%	80	55.8	78.4	67.2	61.5	72.9	71.0	67.4	66.3	79.4	70.1	74.4	72.9	62.1	63.8	60.9	77.3	68.5							$15,709	$15,556	$153
Wicklund Elementary	Public	K-8	300 East Legacy Dr.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7200	689	31	22.0	17.6%	96 (13.9%)	38 (5.5%)	142 (20.6%)	352 (51.1%)	6 (0.9%)	6 (0.9%)	49 (7.1%)	80.1	1149^th of 5857 public elementary schools	80.4%		79.3	1183^rd of 5869 public elementary schools	79.8%	34	36.8	61.0	51.2	60.9	71.2	55.2	74.7	63.8	73.0	66.8	64.3	66.7	46.3	65.7	53.1	59.0	58.9	97.4	98.2		97.4		98.2	$19,063	$18,778	$285
Mountain House Elementary	Public	K-8	3950 Mountain House Rd.	Byron	94514	Alameda County	Mountain House Elementary	No	(n/a)	No	(n/a)	(209) 835-2283	14	1	14.0	21.4%	3 (21.4%)	0 (0.0%)	11 (78.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)										69.2							38.5
Hansen Elementary	Public	K-8	1400 South Durant Terrace	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7260	930	38	24.5	8.2%	51 (5.5%)	26 (2.8%)	67 (7.2%)	715 (76.9%)	15 (1.6%)	7 (0.8%)	49 (5.3%)	96.1	232^nd of 5857 public elementary schools	96.0%		97.1	153^rd of 5869 public elementary schools	97.4%	79	69.5	75.8	72.3	68.9	79.0	81.0	81.3	89.9	84.9	81.0	82.2	81.8	79.5	81.3	87.9	78.8	81.8	96.0	98.0	98.0	97.0	98.0	96.0	$14,296	$14,114	$182
Julius Cordes Elementary	Public	K-8	296 East Parco Ave.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7400	877	35	25.3	2.5%	41 (4.7%)	12 (1.4%)	29 (3.3%)	738 (84.2%)	14 (1.6%)	1 (0.1%)	42 (4.8%)	97.5	112^th of 5857 public elementary schools	98.1%		97.7	104^th of 5869 public elementary schools	98.2%	8	79.2	88.8	84.0	77.8	78.0	93.8	83.7	93.8	94.9	86.6	85.5	82.0	93.8	82.7	92.7	90.8	87.8							$14,371	$14,218	$153
Evelyn Costa Elementary	Public	K-8	1675 South Gobind Blvd.	Mountain House	95391	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7280	612	26	23.3	6.2%	18 (2.9%)	13 (2.1%)	33 (5.4%)	520 (85.0%)	10 (1.6%)	0 (0.0%)	18 (2.9%)	94.5	370^th of 5857 public elementary schools	93.7%		93.6	460^th of 5869 public elementary schools	92.2%	90	63.0	78.1	71.8	65.2	78.0	83.0	78.1	93.8	84.4	80.3	78.8	80.0	80.9	75.0	85.9	75.0	79.2							$16,603	$16,450	$153
Lammersville Elementary	Public	K-8	16555 West Von Sosten Rd.	Tracy	95304	San Joaquin County	Lammersville Joint Unified	No	(n/a)	No	(n/a)	(209) 836-7220	203	12	16.8	36.5%	55 (27.1%)	7 (3.4%)	90 (44.3%)	35 (17.2%)	3 (1.5%)	1 (0.5%)	12 (5.9%)	59.1	2110^th of 5857 public elementary schools	64.0%		44.9	2871^st of 5869 public elementary schools	51.1%	761	37.5	50.0	43.6	52.6	42.4	32.3	73.5	29.6	60.0	48.9	57.9	39.4	30.0	57.6	22.2	46.7	41.9							$27,069	$26,134	$935
Art Freiler	Public	K-8	2421 West Lowell Ave.	Tracy	95377	San Joaquin County	Tracy Joint Unified	No	(n/a)	No	(n/a)	(209) 830-3309	772	36	21.2	75.0%	118 (15.3%)	44 (5.7%)	333 (43.1%)	223 (28.9%)	3 (0.4%)	5 (0.6%)	45 (5.8%)	51.8	2514^th of 5857 public elementary schools	57.1%		49.1	2606^th of 5869 public elementary schools	55.6%	92	41.7	31.7	35.8	35.4	37.7	59.7	44.0	37.6	46.6	43.2	34.2	38.5	52.8	38.0	29.1	35.6	37.2	95.0			96.3			$19,098	$18,622	$476

Frequently Asked Questions about Sebastian Questa Elementary

What district is Sebastian Questa Elementary in?

Lammersville Joint Unified

What schools do graduates of Sebastian Questa Elementary attend?

Students who attend Sebastian Questa Elementary usually go on to attend:

High : Mountain House High

How many students attend Sebastian Questa Elementary?

In the 2024-25 school year, 822 students attended Sebastian Questa Elementary.

What is the racial makeup of Sebastian Questa Elementary?

Students at Sebastian Questa Elementary are 65% Asian, 13% Hispanic, 10% White, 8% Two or more races, 4% African American.

Is Sebastian Questa Elementary a good school?

Sebastian Questa Elementary ranks 601^st of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Rate Sebastian Questa Elementary!

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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.