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Twin Oaks Elementary

Q: Is Twin Oaks Elementary a good school?

Twin Oaks Elementary ranks 2888 th of 5817 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades K-5

2888^th

SchoolDigger Rank ?

of 5,817 California Elementary Schools

Better than 50% of California elementary schools

Summary

Twin Oaks Elementary is a San Marcos, California, public school serving grades K–5, with 648 students in San Marcos Unified. Its 2025–2026 results are mixed: math was above the state rate, science was essentially at the state rate, and English language arts (ELA) was below both the state and district. The clearest concern for families is ELA: 37% of students were proficient, 12 points below the state and 21 points below the district.

Compared with seven nearby K–5 schools, Twin Oaks ranked sixth of eight in ELA, fifth in math and fourth in science. Its ELA result was 12 points below the nearby-school average of 49%; in math, it was 2 points below the 45% peer average; in science, it was 2 points above the 34% average. Against the state, math was a relative strength: 43% proficiency, compared with 38% statewide, though it remained 5 points below the district. Science was 36%, essentially level with the state but 7 points below the district. ELA was the largest shortfall. Among nearby schools, Twin Oaks’ ELA result was just below Monte Vista Elementary and above Hannalei Elementary.

Scores have weakened since 2022–2023: ELA fell 10 percentage points, math 5 and science 8, even as state results improved. Attendance moved in a more positive direction: chronic absenteeism declined from 36% in 2021–2022 to 10% in 2025–2026, below both the district’s 14% and the state’s 18%. SchoolDigger gave Twin Oaks 3 stars and a statewide ranking at the 50th percentile in 2025–2026, down 19 percentile points from 2021–2022. Its student-teacher ratio was 20.9 in 2024–2025, the lowest among nearby K–5 schools with reported ratios; 48% of students were free/reduced lunch eligible that year. SchoolDigger’s 2025–2026 ranking for Low Socio Economic Status Students was at the 19th percentile, 31 points below the school’s overall standing, indicating weaker relative results for this group. Its English Language Learner Students ranking was at the 2nd percentile in 2023–2024, compared with the school’s overall 63rd percentile then; this older subgroup result does not show the group’s current standing.

648

Students ?

20.9

Student/teacher ratio ?

$27,907

Per pupil spending ?

47.7%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

98%

Kindergartners with all required immunizations (2024-25)

Exemptions: 0% (any vaccine)

1 Cassou Rd.
San Marcos, CA 92069-9831

(760) 290-2588

District: San Marcos Unified

Students who attend Twin Oaks Elementary usually attend:

Middle:	Woodland Park Middle
High:	Mission Hills High

Racial breakdown:

Hispanic:

58.6%

White:

31.5%

Two or more races:

4.8%

See top rated California elementary schools

Compare Twin Oaks Elementary to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 66th percentile in 2015 → 50th in 2026

Strengths

✓Above the California median (50th percentile)

Worth a look

!Ranking has slipped — down 16 percentile points since 2015

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

!English Language Arts/Literacy scores 12 pts below the California average

Students meeting standards (2025-2026) ?

This school39%

District avg51%

California avg42%

2,888^th of 5,817

California public elementary schools ?

Top 50%▼ down 14 pts since 2016

From top 35% (2016) to top 50% (2026)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

10^th of 12Elementary Schools in the San Marcos Unified

455^th of 1,530San Marcos 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	45.3	2888 of 5817	50.4%	★★★☆☆
2025	54.0	2367 of 5857	59.6%	★★★☆☆
2024	57.8	2161 of 5869	63.2%	★★★☆☆
2023	62.2	1930 of 5859	67.1%	★★★☆☆
2022	64.3	1838 of 5883	68.8%	★★★☆☆
2019	57.5	2189 of 5789	62.2%	★★★☆☆
2018	52.0	2453 of 5662	56.7%	★★★☆☆
2017	59.1	2061 of 5692	63.8%	★★★☆☆
2016	60.2	1986 of 5614	64.6%	★★★☆☆
2015	60.2	1934 of 5611	65.5%	★★★☆☆
2013	84.7	779 of 5530	85.9%	★★★★☆
2012	80.7	990 of 5390	81.6%	★★★★☆
2011	78.1	1104 of 5377	79.5%	★★★★☆
2010	74.6	1253 of 5314	76.4%	★★★★☆
2009	53.1	2294 of 5193	55.8%	★★★☆☆
2008	58.1	1944 of 5113	62.0%	★★★☆☆
2007	64.6	1617 of 5113	68.4%	★★★☆☆
2006	65.0	1540 of 4818	68.0%	★★★☆☆
2005	64.7	1557 of 4822	67.7%	★★★☆☆
2004	71.2	1263 of 4809	73.7%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	63.9	518 of 2227	76.7%	★★★★☆
2019	41.8	1235 of 2585	52.2%	★★★☆☆
2018	42.4	975 of 2128	54.2%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	19.3	3096 of 3162	2.1%	☆☆☆☆☆
2023	37.3	1990 of 3245	38.7%	★★☆☆☆
2022	57.2	878 of 3311	73.5%	★★★★☆
2019	49.1	1302 of 3275	60.2%	★★★☆☆
2018	34.3	2110 of 3246	35.0%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	40.7	3079 of 5581	44.8%	★★☆☆☆
2025	51.3	2390 of 5597	57.3%	★★★☆☆
2024	58.4	2023 of 5612	64.0%	★★★☆☆
2023	64.6	1736 of 5609	69.0%	★★★☆☆
2022	60.6	1905 of 5635	66.2%	★★★☆☆
2019	60.4	1951 of 5492	64.5%	★★★☆☆
2018	59.0	2025 of 5413	62.6%	★★★☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	36.4	3258 of 5094	36.0%	★★☆☆☆
2025	34.2	3443 of 5107	32.6%	★★☆☆☆
2024	43.7	2701 of 5107	47.1%	★★☆☆☆
2023	49.7	2245 of 5087	55.9%	★★★☆☆
2022	55.1	1896 of 5084	62.7%	★★★☆☆
2019	47.1	2479 of 4963	50.1%	★★★☆☆
2018	44.3	2596 of 4830	46.3%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	24.3	4383 of 5423	19.2%	★☆☆☆☆
2025	28.8	4073 of 5460	25.4%	★☆☆☆☆
2024	45.9	2688 of 5517	51.3%	★★★☆☆
2023	47.5	2535 of 5363	52.7%	★★★☆☆
2022	46.3	2520 of 5264	52.1%	★★★☆☆
2019	40.0	3127 of 5173	39.6%	★★☆☆☆
2018	44.4	2724 of 5084	46.4%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	48.7	2551 of 5603	54.5%	★★★☆☆
2025	56.0	2180 of 5628	61.3%	★★★☆☆
2024	55.7	2182 of 5643	61.3%	★★★☆☆
2023	57.1	2082 of 5638	63.1%	★★★☆☆
2022	67.3	1624 of 5663	71.3%	★★★★☆
2019	52.9	2322 of 5510	57.9%	★★★☆☆
2018	43.4	2822 of 5431	48.0%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	34.1	1835 of 2927	37.3%	★★☆☆☆
2025	36.2	1649 of 2847	42.1%	★★☆☆☆
2024	34.0	1614 of 2635	38.7%	★★☆☆☆
2023	55.1	772 of 2420	68.1%	★★★☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	48.7	1427 of 2536	43.7%	★★☆☆☆
2025	65.2	936 of 2598	64.0%	★★★☆☆
2024	73.3	694 of 2651	73.8%	★★★★☆
2023	66.1	926 of 2661	65.2%	★★★☆☆
2022	67.6	892 of 2726	67.3%	★★★☆☆
2019	68.8	873 of 2834	69.2%	★★★☆☆
2018	54.5	1369 of 2737	50.0%	★★★☆☆

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)77th percentile+8 vs school

Male (2026)54th percentile+4 vs school

Female (2026)45th percentile-6 vs school

White (2026)44th percentile-7 vs school

Special Education (2026)37th percentile-13 vs school

Hispanic (2026)36th percentile-14 vs school

Low Socio Economic Status (2026)19th percentile-31 vs school

English Language Learner (2024)2nd percentile-61 vs school

By subject vs California (2025-2026) ?

Mathematics43%+5 vs state

English Language Arts/Literacy37%-12 vs state

Science36%~ state avg

5.0

1 rating

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4★0

3★0

2★0

1★0

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Schools Near Twin Oaks Elementary

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CSA Spanish Overall (2026)		CSA Spanish Listening (2026)		CSA Spanish Writing (2026)		CSA Spanish Reading (2026)		CAST Science (2026)			Smarter Balanced Assessments English Language Arts/Literacy (2026)							Smarter Balanced Assessments Mathematics (2026)							Vaccination (2024-25)		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	CSA Spanish Overall 3rd Grade	CSA Spanish Overall All Grades	CSA Spanish Listening 3rd Grade	CSA Spanish Listening All Grades	CSA Spanish Writing 3rd Grade	CSA Spanish Writing All Grades	CSA Spanish Reading 3rd Grade	CSA Spanish Reading All Grades	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	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Twin Oaks Elementary	Public	K-5	1 Cassou Rd.	San Marcos	92069	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2588	648	31	20.9	47.7%	204 (31.5%)	6 (0.9%)	380 (58.6%)	24 (3.7%)	0 (0.0%)	3 (0.5%)	31 (4.8%)	45.3	2888^th of 5817 public elementary schools	50.4%		54	2367^th of 5857 public elementary schools	59.6%	521									36.0		36.0	33.0	32.9	44.9				36.9	55.7	31.7	39.3				42.9	98%	0%	$27,907	$27,010	$897
Richland Elementary	Public	K-5	910 Richland Rd.	San Marcos	92069	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2400	883	37	23.8	30.8%	349 (39.5%)	6 (0.7%)	374 (42.4%)	63 (7.1%)	2 (0.2%)	2 (0.2%)	87 (9.9%)	83.1	1008^th of 5817 public elementary schools	82.7%		84.8	931^st of 5857 public elementary schools	84.1%	77									48.0		48.0	73.7	64.4	60.8				66.2	70.4	67.9	52.7				63.3	95%	0%	$24,976	$24,400	$576
Paloma Elementary	Public	K-5	660 Camino Magnifico	San Marcos	92069	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2199	758	34	22.3	31.4%	253 (33.4%)	13 (1.7%)	283 (37.3%)	128 (16.9%)	0 (0.0%)	4 (0.5%)	77 (10.2%)	87.8	755^th of 5817 public elementary schools	87.0%		93.6	436^th of 5857 public elementary schools	92.6%	319									58.1		58.1	64.1	65.9	75.0				68.4	64.1	68.3	66.9				66.5	96%	0%	$22,430	$21,854	$576
San Marcos Elementary	Public	K-5	1 Tiger Way	San Marcos	92069	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2430	546	24	22.7	87.2%	12 (2.2%)	1 (0.2%)	518 (94.9%)	7 (1.3%)	0 (0.0%)	0 (0.0%)	8 (1.5%)	18.3	4955^th of 5817 public elementary schools	14.8%		15.9	5191^st of 5857 public elementary schools	11.4%	236									10.8		10.8	34.3	16.5	31.4				27.3	23.3	14.1	24.8				20.9	92%	0%	$30,721	$29,524	$1,197
Baypoint Preparatory Academy - San Diego	Public, Charter	K-8	520 E. Carmel St.	San Marcos	92079	San Diego County	Baypoint Preparatory Academy - San Diego District	Yes	(n/a)	No	(n/a)	(760) 203-4383	162	9	17.9	58.0%	46 (28.4%)	6 (3.7%)	89 (54.9%)	12 (7.4%)	0 (0.0%)	0 (0.0%)	8 (4.9%)	45.3	2883^rd of 5817 public elementary schools	50.4%		58.9	2124^th of 5857 public elementary schools	63.7%	759									42.9	41.7	42.4	17.7	52.4	57.1	52.4	71.4	76.9	53.3	29.4	42.9	28.6	9.5	30.8	41.7	29.5	≥ 95%		$45,930	$44,824	$1,106
Monte Vista Elementary	Public	K-5	1720 Monte Vista Rd.	Vista	92084	San Diego County	Vista Unified	No	(n/a)	No	(n/a)	(760) 726-0410	556	23	24.1	55.6%	185 (33.3%)	11 (2.0%)	300 (54.0%)	10 (1.8%)	1 (0.2%)	2 (0.4%)	47 (8.5%)	37.6	3394^th of 5817 public elementary schools	41.7%		49.7	2608^th of 5857 public elementary schools	55.5%	786									24.0		24.0	44.9	33.7	33.3				37.2	48.7	35.7	25.3				36.7	94%	1%	$25,353	$24,012	$1,341
Knob Hill Elementary	Public	K-5	1825 Knob Hill Rd.	San Marcos	92069	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2080	725	30	23.8	38.6%	252 (34.8%)	0 (0.0%)	338 (46.6%)	71 (9.8%)	0 (0.0%)	5 (0.7%)	59 (8.1%)	67.5	1716^th of 5817 public elementary schools	70.5%		71.5	1534^th of 5857 public elementary schools	73.8%	182									35.0		35.0	64.4	52.3	56.7				58.0	56.8	46.7	48.3				50.7	98%	0%	$24,017	$23,200	$817
Hannalei Elementary	Public	K-5	120 Hannalei Dr.	Vista	92084	San Diego County	Vista Unified	No	(n/a)	No	(n/a)	(760) 631-6248	480	22	21.8	73.5%	55 (11.5%)	1 (0.2%)	402 (83.8%)	4 (0.8%)	1 (0.2%)	5 (1.0%)	12 (2.5%)	23.9	4475^th of 5817 public elementary schools	23.1%		17.3	5069^th of 5857 public elementary schools	13.5%	594	2.1	2.1	14.6	14.6	8.5	8.5	0.0	0.0	20.3		20.3	22.2	32.3	40.6				31.3	22.2	29.2	21.9				24.4	97%	0%	$27,398	$25,666	$1,732
Joli Ann Leichtag Elementary	Public	K-5	653 Poinsettia Ave.	Vista	92081	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2888	579	26	22.2	69.1%	100 (17.3%)	6 (1.0%)	424 (73.2%)	28 (4.8%)	0 (0.0%)	3 (0.5%)	18 (3.1%)	67.2	1728^th of 5817 public elementary schools	70.3%		52.8	2444^th of 5857 public elementary schools	58.3%	716									39.6		39.6	55.8	50.0	56.4				54.3	55.2	49.4	50.5				51.8	98%	0%	$28,212	$27,150	$1,062
La Mirada Academy	Public	K-8	3697 La Mirada Dr.	San Marcos	92078	San Diego County	San Marcos Unified	No	(n/a)	No	(n/a)	(760) 290-2000	868	37	23.3	77.4%	37 (4.3%)	3 (0.3%)	785 (90.4%)	26 (3.0%)	0 (0.0%)	3 (0.3%)	14 (1.6%)	30.4	3968^th of 5817 public elementary schools	31.8%		26.7	4250^th of 5857 public elementary schools	27.4%	282									29.9	10.2	19.5	37.8	28.6	50.6	19.5	24.4	21.4	29.9	31.7	19.1	37.1	8.5	10.6	8.2	18.5	98%	0%	$26,078	$24,938	$1,140

Frequently Asked Questions about Twin Oaks Elementary

What district is Twin Oaks Elementary in?

San Marcos Unified

How many students attend Twin Oaks Elementary?

In the 2024-25 school year, 648 students attended Twin Oaks Elementary.

What is the racial makeup of Twin Oaks Elementary?

Students at Twin Oaks Elementary are 59% Hispanic, 31% White, 5% Two or more races, 4% Asian.

Is Twin Oaks Elementary a good school?

Twin Oaks Elementary ranks 2888^th of 5817 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

What schools do graduates of Twin Oaks Elementary attend?

Students who attend Twin Oaks Elementary usually go on to attend:

Middle : Woodland Park Middle
High : Mission Hills High

Rate Twin Oaks Elementary!

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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.