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Connecting Waters Charter - East Bay

Q: Is Connecting Waters Charter - East Bay a good school?

Connecting Waters Charter - East Bay ranks 1087 th of 5857 California alternative schools. SchoolDigger rates this school 4 stars out of 5.

Public, Charter, Alternative Grades K-12

1087^th

SchoolDigger Rank ?

of 5,857 California Alternative Schools

Better than 81% of California alternative schools

Summary

Connecting Waters Charter - East Bay is a standout K-12 charter school in Union City, serving about 540 students with a consistently strong academic record that challenges expectations for alternative education models.

The school excels in several key areas, significantly outperforming both state averages and most nearby schools. Student proficiency in English, math, and science is well above the state average, with an exceptional 92% of 11th graders proficient in English. The school also boasts graduation rates over 93% and a remarkably low chronic absenteeism rate of less than 1%, which is the best among all local alternatives, including the nearby Decoto School for Independent Study. This performance is consistent year after year, demonstrating a stable and effective learning environment.

What makes Connecting Waters particularly interesting is its efficient and successful independent study model. It achieves these excellent results with moderate per-student spending compared to other alternative schools in the area, such as the Alameda County Community school. While it serves a population with somewhat lower economic need than some peers, its outcomes are exceptional even when compared to schools with similar or more advantaged profiles, like The Pleasanton Virtual Academy. This suggests the school's educational practices and support systems are a significant driver of student success.

540

Students ?

17.9

Student/teacher ratio ?

30.4%

Free/discounted lunch ?

703 C St.
Union City, CA 94587-2195

(209) 874-1119

District: Connecting Waters Charter - East Bay District

Racial breakdown:

Asian:

44.8%

White:

21.3%

Two or more races:

20.0%

See top rated California elementary schools

Compare Connecting Waters Charter - East Bay to nearby alternative schools!

At a glance

▬ Ranking trend: Holding steady — 95th percentile in 2022 → 94th in 2025

Strengths

✓Test scores above the California average (60% vs 41% meeting standards)

✓Ranks in the top 19% of California alternative schools

✓94% graduate in 4 years — above the California average (86%)

Worth a look

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

Students meeting standards (2024-2025) ?

This school60%

California avg41%

Elementary school

1,087^th of 5,857

California public elementary schools ?

Top 19%▼ down 1 pts since 2019

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

423^rd of 2,761

California public middle schools ?

Top 15%▼ down 2 pts since 2019

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

High school

121^st of 2,162

California public high schools ?

Top 6%▲ up 8 pts since 2019

From top 13% (2019) to top 6% (2025)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

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	81.8	1087 of 5857	81.4%	★★★★☆
2024	87.8	826 of 5869	85.9%	★★★★☆
2023	84.5	972 of 5859	83.4%	★★★★☆
2022	86.5	878 of 5883	85.1%	★★★★☆
2019	82.7	1031 of 5789	82.2%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	59.2	626 of 1203	48.0%	★★☆☆☆
2024	58.9	628 of 1205	47.9%	★★☆☆☆
2023	51.0	733 of 1190	38.4%	★★☆☆☆
2022	54.4	672 of 1154	41.8%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.3	920 of 5597	83.6%	★★★★☆
2024	91.2	554 of 5612	90.1%	★★★★★
2023	84.0	929 of 5609	83.4%	★★★★☆
2022	84.1	911 of 5635	83.8%	★★★★☆
2019	74.3	1323 of 5492	75.9%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.3	472 of 5460	91.4%	★★★★★
2023	51.4	2270 of 5363	57.7%	★★★☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	77.2	1189 of 5628	78.9%	★★★★☆
2024	79.2	1106 of 5643	80.4%	★★★★☆
2023	82.5	991 of 5638	82.4%	★★★★☆
2022	85.1	862 of 5663	84.8%	★★★★☆
2019	87.2	720 of 5510	86.9%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2019	67.4	927 of 2834	67.3%	★★★☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	82.7	423 of 2761	84.7%	★★★★☆
2024	82.5	427 of 2783	84.7%	★★★★☆
2023	89.7	284 of 2781	89.8%	★★★★☆
2022	93.6	181 of 2740	93.4%	★★★★★
2019	85.5	359 of 2715	86.8%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	44.2	466 of 739	36.9%	★★☆☆☆
2024	35.0	524 of 743	29.5%	★☆☆☆☆
2023	47.5	440 of 715	38.5%	★★☆☆☆
2022	57.9	360 of 733	50.9%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.5	300 of 2533	88.2%	★★★★☆
2024	85.9	333 of 2551	86.9%	★★★★☆
2023	89.0	265 of 2531	89.5%	★★★★☆
2022	90.9	214 of 2509	91.5%	★★★★★
2019	73.8	542 of 2380	77.2%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	86.0	236 of 2542	90.7%	★★★★★
2023	74.7	421 of 2531	83.4%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	74.1	542 of 2534	78.6%	★★★★☆
2024	71.6	596 of 2552	76.6%	★★★★☆
2023	87.5	303 of 2538	88.1%	★★★★☆
2022	94.2	147 of 2527	94.2%	★★★★★
2019	89.7	249 of 2407	89.7%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2024	49.6	751 of 1537	51.1%	★★★☆☆
2022	97.7	5 of 1555	99.7%	★★★★★
2019	77.8	303 of 1602	81.1%	★★★★☆

High school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	94.0	121 of 2162	94.4%	★★★★★
2024	93.3	149 of 2159	93.1%	★★★★★
2023	88.6	250 of 2170	88.5%	★★★★☆
2022	95.4	108 of 2123	94.9%	★★★★★
2019	84.4	285 of 2133	86.6%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	85.6	47 of 585	92.0%	★★★★★
2024	39.8	385 of 573	32.8%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.7	279 of 1906	85.4%	★★★★☆
2024	86.1	255 of 1915	86.7%	★★★★☆
2023	93.1	132 of 1915	93.1%	★★★★★
2022	91.9	151 of 1858	91.9%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	84.8	249 of 2013	87.6%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	97.9	40 of 1942	97.9%	★★★★★
2024	95.2	98 of 1948	95.0%	★★★★★
2023	80.2	373 of 1963	81.0%	★★★★☆
2022	95.3	101 of 1916	94.7%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	54.3	544 of 1155	52.9%	★★★☆☆
2023	65.3	407 of 1193	65.9%	★★★☆☆
2022	62.5	430 of 1204	64.3%	★★★☆☆

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

Low Socio Economic Status (2025)91st percentile+10 vs school

Female (2025)84th percentile~ school

Male (2025)79th percentile-3 vs school

White (2019)67th percentile-15 vs school

Asian (2025)48th percentile-33 vs school

Middle school

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

Female (2025)88th percentile+3 vs school

Male (2025)79th percentile-6 vs school

White (2024)51st percentile-34 vs school

Asian (2025)37th percentile-48 vs school

High school

Male (2025)98th percentile+4 vs school

Asian (2025)92nd percentile~ school

Low Socio Economic Status (2025)88th percentile-7 vs school

Female (2025)85th percentile-9 vs school

White (2025)53rd percentile-42 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy70%+21 vs state

Mathematics54%+17 vs state

Science52%+20 vs state

★

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Schools Near Connecting Waters Charter - East Bay

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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
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
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
California School for the Blind	Public, Alternative	K-12	500 Walnut Ave.	Fremont	94536	Alameda County	California School for the Blind (State Special Schl)	No	(n/a)	No	(n/a)	(510) 794-3800	42	8	5.2	40.5%	5 (11.9%)	1 (2.4%)	25 (59.5%)	9 (21.4%)	0 (0.0%)	1 (2.4%)	1 (2.4%)								(n/a)													22.2								6.3
California School for the Deaf-Fremont	Public, Alternative	K-12	39350 Gallaudet Dr.	Fremont	94538	Alameda County	California School for the Deaf-Fremont (State Special Schl)	No	(n/a)	No	(n/a)	(510) 794-3666	279	65	4.3	98.9%	50 (17.9%)	16 (5.7%)	161 (57.7%)	30 (10.8%)	0 (0.0%)	2 (0.7%)	18 (6.5%)								(n/a)		0.0	0.0		5.7				0.0		8.3	15.8	11.4				0.0		0.0	0.0	4.2
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
Circle of Independent Learning	Public, Charter, Alternative	K-12	4700 Calaveras Ave.	Fremont	94538	Alameda County	Fremont Unified	Yes	(n/a)	No	(n/a)	(510) 797-0100	394	17	23.7	46.2%	50 (12.7%)	20 (5.1%)	102 (25.9%)	195 (49.5%)	1 (0.3%)	9 (2.3%)	17 (4.3%)								(n/a)	38.5	35.0		38.3	38.7		57.1	61.5	70.0	47.4	42.5	67.3	57.8		42.9	30.8	50.0	21.1	32.5	50.9	40.5							$29,974	$29,952	$22
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
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
The Pleasanton Virtual Academy	Public, Virtual, Alternative	K-12	4750 First St.	Pleasanton	94566	Alameda County	Pleasanton Unified	No	(n/a)	Yes	(n/a)	(925) 426-4260	138	9	15.2	14.5%	51 (37.0%)	2 (1.4%)	20 (14.5%)	46 (33.3%)	0 (0.0%)	1 (0.7%)	18 (13.0%)								(n/a)			41.2		61.5						90.9	72.2	85.5						81.8	44.4	71.7							$20,782	$20,510	$272
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 Connecting Waters Charter - East Bay

What is the racial makeup of Connecting Waters Charter - East Bay?

Students at Connecting Waters Charter - East Bay are 45% Asian, 21% White, 20% Two or more races, 9% Hispanic, 4% African American.

Is Connecting Waters Charter - East Bay a good school?

Connecting Waters Charter - East Bay ranks 1087^th of 5857 California alternative schools. SchoolDigger rates this school 4 stars out of 5.

What district is Connecting Waters Charter - East Bay in?

Connecting Waters Charter - East Bay District

How many students attend Connecting Waters Charter - East Bay?

In the 2024-25 school year, 540 students attended Connecting Waters Charter - East Bay.

Rate Connecting Waters Charter - East Bay!

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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.