River Islands High

Q: Is River Islands High a good school?

River Islands High ranks 1198 th of 2323 California high schools. SchoolDigger rates this school 2 stars out of 5.

Summary:

River Islands High is a public charter high school located in Lathrop, California, serving grades 9-12 with a total enrollment of 108 students. The school is part of the River Islands High District, which is ranked 813 out of 1,568 districts in California and has a 2-star rating from SchoolDigger.

River Islands High struggles academically, ranking 1198 out of 2,323 California high schools for the 2023-2024 school year with a 2-star rating. The school's performance is particularly low for Asian, White, and special education students, ranking in the bottom 25% of California high schools in these subgroups. River Islands High also had only 20.83% of students proficient or better in the CAST/Science test, compared to the California average of 24.63%. However, the school's chronic absenteeism rate of 10.1% is lower than the nearby Manteca High (27.1%) and Merrill F. West High (23.9%).

When compared to nearby schools, River Islands High performs significantly worse than the Manteca High, which ranked 835 out of 2,323 California high schools, and the Millennium Charter, which ranked 449 out of 2,323 California high schools. The Lathrop High, a public high school, also outperforms River Islands High, ranking 552 out of 2,323 California high schools.

Detail:

Public, Charter 9-12

2760 Penrose Ln.
Lathrop, CA 95330

(209) 717-6715

District: River Islands High District

SchoolDigger Rank:
1198^th of 2,323 California High Schools

Student/teacher ratio: 17.7

Number of students: 278

Racial breakdown:

Asian:

39.2%

Hispanic:

32.7%

White:

10.8%

Free/discounted lunch recipients: 42.8%

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Performance Trends

Compare Details River Islands High ranks worse than 51.6% of high schools in California. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 37.53. (See more...)

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

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Teachers

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Schooldigger 2024 Rankings:

River Islands High:

SchoolDigger ranks River Islands High 1198^th of 2323 California public high schools. (See River Islands High in the ranking list.)

High School Test Score Ratings by Student Subgroup:

Special Education students:

Low Socio Economic Status students:

Female students:

Male students:

Asian students:

Hispanic students:

White students:

River Islands High District:

SchoolDigger ranks River Islands High District 813^th of 1568 California school districts. (See district ranking list.)

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Rank History for River Islands High

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Rank History for all students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	37.53	1198^th	2323	48.4%

See the entire list of California High School Rankings!

Rank History for Special Education students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	16.55	1442^nd	1534	6.0%

See the entire list of Best California High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	38.83	1174^th	2235	47.5%

See the entire list of Best California High Schools for Low Socio Economic Status Students!

Rank History for Female students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	45.52	936^th	2098	55.4%

See the entire list of Best California High Schools for Female Students!

Rank History for Male students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	31.48	1281^st	2172	41.0%

See the entire list of Best California High Schools for Male Students!

Rank History for Asian students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	13.00	613^th	712	13.9%

See the entire list of Best California High Schools for Asian Students!

Rank History for Hispanic students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	28.56	1410^th	2125	33.6%

See the entire list of Best California High Schools for Hispanic Students!

Rank History for White students at River Islands High

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CA State Percentile	SchoolDigger Rating
2024	4.82	1305^th	1406	7.2%

See the entire list of Best California High Schools for White Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: California Department of Education

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Enrollment information for River Islands High

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Not Specified	Total
2023	12	7	49	32	2	1	5	0	108
2024	30	21	109	91	3	5	19	0	278

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at River Islands High

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
2023	108	9.2	11.6	38.9
2024	278	15.6	17.7	42.8

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio River Islands High

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
2023	108	9.2	11.6	38.9
2024	278	15.6	17.7	42.8

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Schools Near River Islands High

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

School													Students/Teachers											Ranking (2024)				Ranking (2023)				CAST Science (2024)				Smarter Balanced Assessments English Language Arts/Literacy (2024)		Smarter Balanced Assessments Mathematics (2024)		Per Pupil Expenditures (2018)
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 (2024)	Statewide Rank (2024)	State Percentile (2024)	SchoolDigger Rating (2024)	Average Standard Score (2023)	Statewide Rank (2023)	State Percentile (2023)	Rank Change from Previous Year	CAST Science 10th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science End of Course	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy End of Course	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics End of Course	Total
River Islands High	Public, Charter	9-12	2760 Penrose Ln.	Lathrop	95330	San Joaquin County	River Islands High District	Yes	(n/a)	No	(n/a)	(209) 717-6715	278	16	17.7	42.8%	30 (10.8%)	21 (7.6%)	91 (32.7%)	109 (39.2%)	3 (1.1%)	5 (1.8%)	19 (6.8%)	37.5	1198^th of 2323 public high schools	48.4%					(n/a)	20.8			20.8
Lathrop High	Public	9-12	647 West Lathrop Rd.	Lathrop	95330	San Joaquin County	Manteca Unified	No	(n/a)	No	(n/a)	(209) 938-6350	1,509	75	20.0	61.5%	140 (9.3%)	96 (6.4%)	840 (55.7%)	351 (23.3%)	5 (0.3%)	17 (1.1%)	60 (4.0%)	64.7	552^nd of 2323 public high schools	76.2%		59.1	673^rd of 2348 public high schools	71.3%	121		36.7		36.4	61.0	61.0	26.4	26.4	$6,225
Sierra High	Public	9-12	1700 Thomas St.	Manteca	95337	San Joaquin County	Manteca Unified	No	(n/a)	No	(n/a)	(209) 858-7410	1,637	77	21.2	56.8%	328 (20.0%)	59 (3.6%)	732 (44.7%)	429 (26.2%)	3 (0.2%)	21 (1.3%)	65 (4.0%)	64.7	551^st of 2323 public high schools	76.3%		70.3	476^th of 2348 public high schools	79.7%	75		34.2		33.9	65.8	65.8	25.7	25.7	$7,009
East Union High	Public	9-12	1700 North Union Rd.	Manteca	95336	San Joaquin County	Manteca Unified	No	(n/a)	No	(n/a)	(209) 858-7270	1,510	78	19.4	63.3%	332 (22.0%)	41 (2.7%)	965 (63.9%)	117 (7.7%)	5 (0.3%)	6 (0.4%)	39 (2.6%)	40.9	1106^th of 2323 public high schools	52.4%		39.6	1157^th of 2348 public high schools	50.7%	51		20.0		19.5	49.0	49.0	16.5	16.5	$6,381
Yosemite School Community Day (7-12)	Public	7-12	737 West Yosemite Ave.	Manteca	95337	San Joaquin County	Manteca Unified	No	(n/a)	No	(n/a)	(209) 239-6282	39	6	6.3	71.8%	5 (12.8%)	6 (15.4%)	26 (66.7%)	1 (2.6%)	0 (0.0%)	0 (0.0%)	1 (2.6%)	6.4	2278^th of 2323 public high schools	1.9%					(n/a)		0.0		0.0	7.7	3.7	0.0	0.0	$21,551
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	484	27	17.7	49.6%	89 (18.4%)	21 (4.3%)	266 (55.0%)	87 (18.0%)	1 (0.2%)	0 (0.0%)	20 (4.1%)	72	449^th of 2323 public high schools	80.7%		88.2	208^th of 2348 public high schools	91.1%	241		42.1		42.1	56.4	56.4	37.3	37.3
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	1,722	76	22.6	60.3%	385 (22.4%)	66 (3.8%)	931 (54.1%)	234 (13.6%)	8 (0.5%)	14 (0.8%)	77 (4.5%)	49.7	868^th of 2323 public high schools	62.6%		48.3	904^th of 2348 public high schools	61.5%	36			21.1	21.1	49.7	49.7	22.1	22.1	$7,237
Manteca High	Public	9-12	450 East Yosemite Ave.	Manteca	95336	San Joaquin County	Manteca Unified	No	(n/a)	No	(n/a)	(209) 858-7340	1,858	95	19.5	69.0%	343 (18.5%)	81 (4.4%)	1,146 (61.7%)	196 (10.5%)	10 (0.5%)	15 (0.8%)	64 (3.4%)	51	835^th of 2323 public high schools	64.1%		55.3	754^th of 2348 public high schools	67.9%	81		26.6		26.7	56.9	56.9	18.4	18.4	$6,987
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	10	2	4.6	70.0%	0 (0.0%)	1 (10.0%)	8 (80.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (10.0%)								(n/a)									$17,348
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	123	11	11.1	88.6%	9 (7.3%)	6 (4.9%)	98 (79.7%)	6 (4.9%)	1 (0.8%)	2 (1.6%)	1 (0.8%)	8.4	2147^th of 2323 public high schools	7.6%		10	2058^th of 2348 public high schools	12.4%	89			0.0	0.0	11.1	11.1	0.0	0.0	$20,213

Frequently Asked Questions about River Islands High

What is the racial makeup of River Islands High?

Students at River Islands High are 39% Asian, 33% Hispanic, 11% White, 8% African American, 7% Two or more races, 2% Pacific Islander, 1% American Indian.

Is River Islands High a good school?

River Islands High ranks 1198^th of 2323 California high schools. SchoolDigger rates this school 2 stars out of 5.

How many students attend River Islands High?

In the 2023-24 school year, 278 students attended River Islands High.

What district is River Islands High in?

River Islands High District

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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.