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Coming soon: We're expecting this year's test scores from the California Department of Education any day now — new rankings will be posted the moment they're released!

Coming soon: This year's test scores are expected from the California Department of Education any day now — new rankings will follow the moment they're released!

Mattole Triple Junction High

Public Grades 9-12

Students ?

1.0

Student/teacher ratio ?

33.3%

Free/discounted lunch ?

29289 Chambers Rd.
Petrolia, CA 95558

(707) 629-3250

District: Mattole Unified

Feeder schools for Mattole Triple Junction High:

Elementary:	Honeydew Elementary
	Mattole Elementary

Racial breakdown:

White:

50.0%

Hispanic:

50.0%

See top rated California public schools

Compare Mattole Triple Junction High to nearby high schools!

At a glance

▬ Ranking trend: Holding steady — 7th percentile in 2005 → 9th in 2013

Strengths

✓Small classes — about 1 students per teacher

Worth a look

!Test scores below the California average (0% vs 83% meeting standards)

!Math scores 84 pts below the California average

Students meeting standards (2012-2013) ?

This school0%

District avg67%

California avg83%

Not ranked this year

Mattole Triple Junction 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	5.0	2151 of 2367	9.1%	☆☆☆☆☆
2009	8.7	2060 of 2238	8.0%	☆☆☆☆☆
2007	4.8	1913 of 2063	7.3%	☆☆☆☆☆
2006	4.5	1820 of 1968	7.5%	☆☆☆☆☆
2005	5.2	1761 of 1901	7.4%	☆☆☆☆☆

By subject vs California (2012-2013) ?

English Language Arts0%-83 vs state

Math0%-84 vs state

★

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Schools Near Mattole Triple Junction 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 (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)			Smarter Balanced Assessments Mathematics (2025)			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 (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 8th Grade	CAST Science 10th Grade	CAST Science All Grades	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 8th Grade	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
Mattole Triple Junction High	Public	9-12	29289 Chambers Rd.	Petrolia	95558	Humboldt County	Mattole Unified	No	(n/a)	No	(n/a)	(707) 629-3250	2	2	1.0		1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)
Ferndale High	Public	9-12	1231 Main St.	Ferndale	95536	Humboldt County	Ferndale Unified	No	(n/a)	No	(n/a)	(707) 786-5900	145	13	11.3	46.2%	103 (71.0%)	1 (0.7%)	32 (22.1%)	0 (0.0%)	3 (2.1%)	0 (0.0%)	6 (4.1%)	45.7	1124^th of 2162 public high schools	48.0%		53.1	929^th of 2159 public high schools	57.0%	195		10.8	10.3		51.5	51.5		30.3	30.3	$41,855	$39,906	$1,949
Eel River Community	Public	7-12	2292 Newburg Rd.	Fortuna	95501	Humboldt County	Humboldt County Office of Education	No	(n/a)	No	(n/a)	(707) 582-3253	64	4	14.5	96.9%	24 (37.5%)	0 (0.0%)	13 (20.3%)	0 (0.0%)	17 (26.6%)	0 (0.0%)	10 (15.6%)								(n/a)	0.0		4.8	7.7		4.8	0.0		0.0	$25,044	$21,744	$3,300

Frequently Asked Questions about Mattole Triple Junction High

What is the racial makeup of Mattole Triple Junction High?

Students at Mattole Triple Junction High are 50% White, 50% Hispanic.

What schools feed into Mattole Triple Junction High?

Mattole Triple Junction High is fed by the following schools:

Elementary : Honeydew Elementary
Elementary : Mattole Elementary

What district is Mattole Triple Junction High in?

Mattole Unified

How many students attend Mattole Triple Junction High?

In the 2024-25 school year, 2 students attended Mattole Triple Junction High.

Rate Mattole Triple Junction High!

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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.