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Castro Valley Virtual Academy

Q: Is Castro Valley Virtual Academy a good school?

Castro Valley Virtual Academy ranks 627 th of 2162 California alternative schools. SchoolDigger rates this school 4 stars out of 5.

Public, Virtual, Alternative Grades K-12

627^th

SchoolDigger Rank ?

of 2,162 California Alternative Schools

Better than 71% of California alternative schools

Summary

Castro Valley Virtual Academy (CVVA) is a small, K-12 online school serving just 45 students within the highly-regarded Castro Valley Unified School District, offering a flexible independent study model for families in the area.

This school stands out for its significant strengths, particularly in English Language Arts, where student proficiency far exceeds both state and district averages, and in its consistently high graduation rates, which are notably stable compared to many nearby alternative programs like Independent Study Sojourner Truth or Alameda County Community. With a low student-teacher ratio, CVVA provides personalized attention, and it serves a more economically diverse population than several comparable schools. When compared directly to another local virtual option, San Leandro Virtual Academy, CVVA shows stronger outcomes in these key areas.

However, parents should note two primary challenges. Mathematics proficiency is a clear area for growth, lagging behind both the district average and some nearby schools such as Connecting Waters Charter - East Bay. Furthermore, student engagement in the virtual format can vary, as indicated by fluctuating chronic absenteeism rates, though the current rate matches the state average. In summary, CVVA is a compelling option for students who thrive in an independent, online setting, especially for success in language arts and graduating on time, but families should be prepared to actively support their child's math learning and daily engagement.

Students ?

12.4

Student/teacher ratio ?

$27,095

Per pupil spending ?

40%

Free/discounted lunch ?

18400 Clifton Way
Castro Valley, CA 94546-2020

(510) 537-3193

District: Castro Valley Unified

Racial breakdown:

Hispanic:

28.9%

White:

24.4%

Asian:

22.2%

See top rated California elementary schools

Compare Castro Valley Virtual Academy to nearby alternative schools!

At a glance

▬ Ranking trend: Holding steady — 68th percentile in 2021 → 71st in 2025

Strengths

✓Above the California median (71st percentile)

Worth a look

!Science scores 13 pts below the California average

Students meeting standards (2024-2025) ?

This school41%

District avg61%

California avg41%

627^th of 2,162

California public high schools ?

Top 29%▲ up 3 pts since 2021

From top 32% (2021) to top 29% (2025)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

237^th of 1,543Castro Valley 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)

High school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	68.3	627 of 2162	71.0%	★★★★☆
2023	67.4	618 of 2170	71.5%	★★★★☆
2022	83.2	307 of 2123	85.5%	★★★★☆
2021	64.3	417 of 1290	67.7%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2021	58.1	417 of 1054	60.4%	★★★☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2021	62.4	381 of 1122	66.0%	★★★☆☆

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)

Elementary school

Male (2022)84th percentile+6 vs school

High school

Male (2021)66th percentile~ school

Female (2021)60th percentile-7 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy73%+24 vs state

Mathematics36%~ state avg

Science20%-13 vs state

★

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Schools Near Castro Valley Virtual Academy

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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 ()				Ranking ()				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 ()	Statewide Rank ()	State Percentile ()	SchoolDigger Rating ()	Average Standard Score ()	Statewide Rank ()	State Percentile ()	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science 11th Grade	CAST Science 12th 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 11th 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 11th 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
Castro Valley Virtual Academy	Public, Virtual, Alternative	K-12	18400 Clifton Way	Castro Valley	94546	Alameda County	Castro Valley Unified	No	(n/a)	Yes	(n/a)	(510) 537-3193	45	4	12.4	40.0%	11 (24.4%)	2 (4.4%)	13 (28.9%)	10 (22.2%)	0 (0.0%)	0 (0.0%)	9 (20.0%)								(n/a)				20.0	20.0							72.7	72.7							36.4	36.4							$27,095	$26,994	$101
Alameda County Juvenile Hall/Court	Public, Alternative	K-12	2500 Fairmont Ave.	San Leandro	94578	Alameda County	Alameda County Office of Education	No	(n/a)	No	(n/a)	(510) 670-7609	56	8	6.7	94.6%	3 (5.4%)	29 (51.8%)	23 (41.1%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (1.8%)								(n/a)
San Leandro Virtual Academy	Public, Virtual, Alternative	K-12	13701 Bancroft Ave	San Leandro	94578	Alameda County	San Leandro Unified	No	(n/a)	Yes	(n/a)	(510) 618-4460	102	6	17.7	80.4%	13 (12.7%)	12 (11.8%)	49 (48.0%)	14 (13.7%)	0 (0.0%)	1 (1.0%)	13 (12.7%)								(n/a)	18.2	8.3	21.7	33.3	20.7			45.5			0.0	25.0	28.6			0.0			0.0	25.0	15.7							$26,486	$25,806	$680
Hayward Twin Oaks Montessori	Public, Charter, Alternative	1-12	951 Palisade St.	Hayward	94542	Alameda County	Hayward Twin Oaks Montessori District	Yes	(n/a)	No	(n/a)	(510) 370-3334	643	18	34.9	37.9%	94 (14.6%)	23 (3.6%)	297 (46.2%)	91 (14.2%)	0 (0.0%)	6 (0.9%)	131 (20.4%)								(n/a)	28.9	30.0		20.0	26.9	40.0	41.7	37.8	50.0	47.6	38.3	33.3	41.5	44.4	35.4	24.4	40.0	34.9	31.7	7.1	31.9
Alameda County Community	Public, Alternative	K-12	313 West Winton Ave.	Hayward	94544	Alameda County	Alameda County Office of Education	No	(n/a)	No	(n/a)	(510) 670-4590	73	5	13.8	58.9%	2 (2.7%)	8 (11.0%)	55 (75.3%)	5 (6.8%)	1 (1.4%)	1 (1.4%)	1 (1.4%)								(n/a)		0.0			0.0						7.1	9.1	7.1						0.0		0.0							$92,109	$77,826	$14,283
Lodestar: A Lighthouse Community Charter Public	Public, Charter, Alternative	K-12	701 105th Ave.	Oakland	94603	Alameda County	Lodestar: A Lighthouse Community Charter Public District	Yes	(n/a)	No	(n/a)	(510) 775-0255	723	49	14.7	96.7%	1 (0.1%)	77 (10.7%)	606 (83.8%)	5 (0.7%)	0 (0.0%)	6 (0.8%)	27 (3.7%)								(n/a)	6.1	22.5	16.1		15.9	15.1	11.1	6.1	14.3	27.4	43.7	30.7	22.7	41.5	22.2	10.2	5.4	17.8	53.5	12.9	24.2	96.2	96.2	96.2	96.2	96.2	96.2
Independent Study Sojourner Truth	Public, Alternative	K-12	8251 Fontaine St.	Oakland	94605	Alameda County	Oakland Unified	No	(n/a)	No	(n/a)	(510) 879-5330	481	36	13.4	97.3%	119 (24.7%)	135 (28.1%)	140 (29.1%)	30 (6.2%)	1 (0.2%)	3 (0.6%)	51 (10.6%)								(n/a)	15.0	31.0	50.0	50.0	39.0	8.7	18.8	19.1	20.8	30.4	30.6	46.7	26.6	4.6	18.8	4.8	33.3	42.9	34.3	74.1	32.5							$33,780	$31,730	$2,050
Decoto School for Independent Study	Public, Virtual, Alternative	K-12	725 Whipple Rd.	Union City	94587	Alameda County	New Haven Unified	No	(n/a)	Yes	(n/a)	(510) 476-2696	233	10	23.0	65.2%	21 (9.0%)	15 (6.4%)	101 (43.3%)	73 (31.3%)	1 (0.4%)	8 (3.4%)	13 (5.6%)								(n/a)			48.7		42.9					57.1		53.9	60.0					35.7		43.6	43.5							$23,490	$20,852	$2,638
Connecting Waters Charter - East Bay	Public, Charter, Alternative	K-12	703 C St.	Union City	94587	Alameda County	Connecting Waters Charter - East Bay District	Yes	(n/a)	No	(n/a)	(209) 874-1119	540	30	17.9	30.4%	115 (21.3%)	21 (3.9%)	48 (8.9%)	242 (44.8%)	3 (0.6%)	1 (0.2%)	108 (20.0%)								(n/a)	57.9	40.5	57.9		52.5	60.0	55.6	71.1	73.8	66.7	69.1	92.1	69.8	55.0	66.7	55.3	50.0	57.1	47.6	50.0	54.3	56.8	65.9	81.8	65.9	61.4	65.9
York Alternative Learning Center	Public, Virtual, Alternative	K-12	6901 York Dr.	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	Yes	(n/a)	(925) 307-1960	7	0	38.8		4 (57.1%)	1 (14.3%)	1 (14.3%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (14.3%)								(n/a)

Frequently Asked Questions about Castro Valley Virtual Academy

What is the racial makeup of Castro Valley Virtual Academy?

Students at Castro Valley Virtual Academy are 29% Hispanic, 24% White, 22% Asian, 20% Two or more races, 4% African American.

What district is Castro Valley Virtual Academy in?

Castro Valley Unified

Is Castro Valley Virtual Academy a good school?

Castro Valley Virtual Academy ranks 627^th of 2162 California alternative schools. SchoolDigger rates this school 4 stars out of 5.

How many students attend Castro Valley Virtual Academy?

In the 2024-25 school year, 45 students attended Castro Valley Virtual Academy.

Rate Castro Valley Virtual Academy!

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Schools in Castro Valley, CA

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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.