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Southern Trinity High

Public Grades 9-12

Students ?

3.5

Student/teacher ratio ?

58.3%

Free/reduced lunch eligible (2023-24) ?

All students in California receive free school meals.

600 Van Duzen Rd.
Mad River, CA 95526-9511

(707) 574-6239

District: Southern Trinity Joint Unified

Feeder schools for Southern Trinity High:

Elementary:	Hoaglin-Zenia Elementary
	Van Duzen Elementary

Racial breakdown:

White:

57.1%

Hispanic:

14.3%

American Indian:

14.3%

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Compare Southern Trinity High to nearby high schools!

At a glance

▼ Ranking trend: Declining — 88th percentile in 2004 → 9th in 2013

Strengths

✓Small classes — about 4 students per teacher

Worth a look

!Ranking has slipped — down 79 percentile points since 2004

Not ranked this year

Southern Trinity High did not have enough recent test-score data to be ranked. Check the trend below for past years.

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
2013	5.0	2203 of 2426	9.2%	☆☆☆☆☆
2012	4.9	2139 of 2354	9.1%	☆☆☆☆☆
2011	34.6	1190 of 2367	49.7%	★★☆☆☆
2010	60.2	514 of 2281	77.5%	★★★★☆
2009	25.2	1612 of 2238	28.0%	★☆☆☆☆
2008	46.6	751 of 2117	64.5%	★★★☆☆
2007	53.8	569 of 2063	72.4%	★★★★☆
2006	66.2	347 of 1968	82.4%	★★★★☆
2005	82.1	76 of 1901	96.0%	★★★★★
2004	69.3	202 of 1653	87.8%	★★★★☆

★

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Schools Near Southern Trinity High

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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 Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)		Smarter Balanced Assessments English Language Arts/Literacy (2026)		Smarter Balanced Assessments Mathematics (2026)		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	CAST Science 11th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Southern Trinity High	Public	9-12	600 Van Duzen Rd.	Mad River	95526	Trinity County	Southern Trinity Joint Unified	No	(n/a)	No	(n/a)	(707) 574-6239	7	2	3.5	—	4 (57.1%)	0 (0.0%)	1 (14.3%)	0 (0.0%)	1 (14.3%)	0 (0.0%)	1 (14.3%)								(n/a)
Mt. Lassic High (Continuation)	Public	9-12	600 Van Duzen Rd.	Mad River	95526	Trinity County	Southern Trinity Joint Unified	No	(n/a)	No	(n/a)	(707) 574-6239	0	0	16.6	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)							$31,090	$31,090	$00
Casterlin High	Public	9-12	24790 Alderpoint Rd.	Blocksburg	95514	Humboldt County	Southern Humboldt Joint Unified	No	(n/a)	No	(n/a)	(707) 926-5402	4	2	1.9	—	2 (50.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2 (50.0%)								(n/a)
Valley High	Public	9-12	6930 State Hwy. 3	Hayfork	96041	Trinity County	Mountain Valley Unified	No	(n/a)	No	(n/a)	(530) 628-5294	5	1	6.0	—	2 (40.0%)	0 (0.0%)	2 (40.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)							$14,493	$14,372	$121
Hayfork High	Public	9-12	231 Oak St.	Hayfork	96041	Trinity County	Mountain Valley Unified	No	(n/a)	No	(n/a)	(530) 628-5261	96	6	15.8	78.1%	47 (49.0%)	1 (1.0%)	10 (10.4%)	25 (26.0%)	1 (1.0%)	0 (0.0%)	12 (12.5%)	73.3	551^st of 2135 public high schools	74.2%		94.9	95^th of 2162 public high schools	95.6%	456	38.1	38.1	61.9	61.9	47.6	47.6	$61,075	$60,052	$1,023

Frequently Asked Questions about Southern Trinity High

How many students attend Southern Trinity High?

In the 2024-25 school year, 7 students attended Southern Trinity High.

What schools feed into Southern Trinity High?

Southern Trinity High is fed by the following schools:

Elementary : Hoaglin-Zenia Elementary
Elementary : Van Duzen Elementary

What district is Southern Trinity High in?

Southern Trinity Joint Unified

What is the racial makeup of Southern Trinity High?

Students at Southern Trinity High are 57% White, 14% Hispanic, 14% American Indian, 14% Two or more races.

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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 ratesOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresOct 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.