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Triangle Lake Charter School

Q: Is Triangle Lake Charter School a good school?

Triangle Lake Charter School ranks 525 th of 709 Oregon alternative schools. SchoolDigger rates this school 1 star out of 5.

Q: How many students attend Triangle Lake Charter School?

In the 2024-25 school year, 416 students attended Triangle Lake Charter School.

Q: What is the racial makeup of Triangle Lake Charter School?

Students at Triangle Lake Charter School are 87% White, 5% Hispanic, 5% Two or more races, 1% African American.

Public, Charter, Alternative Grades K-12

525^th

SchoolDigger Rank ?

of 709 Oregon Alternative Schools

Better than 26% of Oregon alternative schools

Summary

Triangle Lake Charter School is a K–12 alternative charter school in rural Blachly, Oregon, serving 416 students as part of Blachly School District 90, with the closest comparable school in the data being much smaller Alsea Charter School in Alsea School District 7J, about 13 miles away.

In the latest year, Triangle Lake Charter School beat both Alsea Charter School and Oregon on two important measures. Its graduation rate was 93.3%, far above Alsea Charter School's 47.8% and the state's 83.0%. Chronic absenteeism — where lower is better — was 25.6%, better than Alsea's 35.0% and the state's 33.5%. Test scores tell a more mixed story: all-grade proficiency was 33% in English language arts, 22.9% in math, and 23.3% in science. Those results are above Alsea Charter School (26.5%, 13.4%, and 22.9%) but below the state (43.8%, 32.9%, and 30.6%).

Two things are worth watching. First, results swing a lot here. Graduation rates moved from 80.0% to 84.6% to 55.6% to 81.3% to 93.3% across recent years, and absenteeism fell from 55.7% to 8.9% by 2022–23 before rising to 11.9% and then 25.6%. Small graduating classes and small grade groups can cause big year-to-year changes, and some 11th-grade and 8th-grade test results are suppressed by the state, leaving gaps in the picture. Second, performance varies by grade. Middle-school math looks comparatively strong — 6th grade was 36.8%, above the state's 29.7% — while 3rd-grade math was 5.3% against the state's 41.3%, 3rd-grade ELA was 21.1% against 41.5%, and 8th-grade science was 10% against 27.7%. Also note that free/reduced lunch jumped from 24.56% to 68.99% in one year, now similar to Alsea Charter School's 67.66%, and that Triangle Lake Charter School spends $16,156 per student versus Alsea Charter School's $28,382, with similar student–teacher ratios (23.2 and 23.8).

416

Students ?

23.2

Student/teacher ratio ?

$16,156

Per pupil spending ?

69.0%

Free/reduced lunch eligible (2024-25) ?

69.9%

Students (K-12) with all required vaccines (2025-26)

Exemptions: 25.3% (any vaccine)

20264 Blachly Grange Rd
Blachly, OR 97412-9714

(541) 925-3262

District: Blachly School District 90

Racial breakdown:

White:

86.8%

Hispanic:

5.3%

Two or more races:

5.3%

See top rated Oregon elementary schools

Compare Triangle Lake Charter School to nearby alternative schools!

At a glance

▲ Ranking trend: Improving — 21st percentile in 2023 → 36th in 2026

Strengths

✓93% graduate in 4 years — above the Oregon average (83%)

✓Ranking is trending up — up 15 percentile points since 2023

Worth a look

!Test scores below the Oregon average (27% vs 37% meeting standards)

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

!English Language Arts scores 11 pts below the Oregon average

Students meeting standards (2025-2026) ?

This school27%

District avg27%

Oregon avg37%

Elementary school

525^th of 709

Oregon public elementary schools ?

Bottom 26%▼ down 33 pts since 2016

From top 41% (2016) to bottom 26% (2026)

See the entire ranking list of Oregon Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

237^th of 371

Oregon public middle schools ?

Bottom 36%▲ up 7 pts since 2016

From bottom 30% (2016) to bottom 36% (2026)

See the entire ranking list of Oregon Middle 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	Oregon percentile	Rating
2026	27.4	525 of 709	26.0%	★☆☆☆☆
2025	66.2	197 of 706	72.1%	★★★★☆
2024	37.3	424 of 710	40.3%	★★☆☆☆
2023	23.7	558 of 706	21.0%	★☆☆☆☆
2022	27.4	520 of 706	26.3%	★☆☆☆☆
2019	26.1	544 of 705	22.8%	★☆☆☆☆
2018	53.6	314 of 709	55.7%	★★★☆☆
2017	38.1	450 of 701	35.8%	★★☆☆☆
2016	55.7	285 of 697	59.1%	★★★☆☆
2015	53.1	301 of 706	57.4%	★★★☆☆
2014	51.4	348 of 695	49.9%	★★★☆☆
2013	65.8	218 of 707	69.2%	★★★☆☆
2012	49.0	394 of 730	46.0%	★★☆☆☆
2011	78.3	107 of 695	84.6%	★★★★☆
2010	76.1	129 of 674	80.9%	★★★★☆
2009	64.8	226 of 665	66.0%	★★★☆☆
2008	55.7	305 of 655	53.4%	★★★☆☆
2007	66.5	192 of 652	70.6%	★★★★☆
2006	66.5	210 of 636	67.0%	★★★☆☆
2005	35.4	464 of 629	26.2%	★☆☆☆☆

Female

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	24.0	523 of 655	20.2%	★☆☆☆☆
2025	79.7	103 of 653	84.2%	★★★★☆
2019	18.0	547 of 621	11.9%	★☆☆☆☆
2018	47.9	355 of 681	47.9%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Oregon percentile	Rating
2022	27.6	516 of 703	26.6%	★☆☆☆☆
2019	31.4	455 of 597	23.8%	★☆☆☆☆
2018	65.9	168 of 640	73.8%	★★★★☆

Male

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	25.9	509 of 657	22.5%	★☆☆☆☆
2025	41.7	354 of 664	46.7%	★★☆☆☆
2024	38.6	382 of 662	42.3%	★★☆☆☆
2023	27.2	501 of 665	24.7%	★☆☆☆☆
2018	58.9	255 of 680	62.5%	★★★☆☆

White

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	18.5	590 of 670	11.9%	★☆☆☆☆
2025	53.0	285 of 669	57.4%	★★★☆☆
2024	19.9	563 of 670	16.0%	★☆☆☆☆
2023	18.8	575 of 656	12.3%	★☆☆☆☆
2022	20.0	570 of 666	14.4%	★☆☆☆☆
2019	16.9	598 of 662	9.7%	☆☆☆☆☆
2018	55.3	296 of 683	56.7%	★★★☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	36.0	237 of 371	36.1%	★★☆☆☆
2025	20.6	306 of 368	16.8%	★☆☆☆☆
2024	31.4	248 of 371	33.2%	★★☆☆☆
2023	29.8	272 of 380	28.4%	★☆☆☆☆
2022	45.9	182 of 367	50.4%	★★★☆☆
2019	16.2	338 of 379	10.8%	★☆☆☆☆
2018	24.0	310 of 384	19.3%	★☆☆☆☆
2017	22.4	313 of 382	18.1%	★☆☆☆☆
2016	35.2	270 of 383	29.5%	★☆☆☆☆
2015	50.0	187 of 381	50.9%	★★★☆☆
2014	60.3	149 of 382	61.0%	★★★☆☆
2013	79.2	51 of 377	86.5%	★★★★☆
2012	68.7	99 of 395	74.9%	★★★★☆
2011	74.6	56 of 357	84.3%	★★★★☆
2010	63.9	111 of 343	67.6%	★★★☆☆
2009	65.5	92 of 323	71.5%	★★★★☆
2008	63.3	97 of 315	69.2%	★★★☆☆
2007	43.3	189 of 295	35.9%	★★☆☆☆
2006	24.0	241 of 285	15.4%	★☆☆☆☆
2005	26.5	220 of 271	18.8%	★☆☆☆☆
2004	65.7	76 of 270	71.9%	★★★★☆

Female

Year	Avg score	Statewide rank	Oregon percentile	Rating
2018	23.9	290 of 342	15.2%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Oregon percentile	Rating
2022	46.3	178 of 364	51.1%	★★★☆☆
2019	35.4	183 of 282	35.1%	★★☆☆☆
2018	29.5	260 of 325	20.0%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Oregon percentile	Rating
2025	20.7	279 of 330	15.5%	★☆☆☆☆
2019	11.2	276 of 291	5.2%	☆☆☆☆☆
2018	32.1	248 of 341	27.3%	★☆☆☆☆

White

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	24.1	284 of 354	19.8%	★☆☆☆☆
2025	14.5	319 of 351	9.1%	☆☆☆☆☆
2024	25.5	266 of 349	23.8%	★☆☆☆☆
2023	12.6	335 of 360	6.9%	☆☆☆☆☆
2022	41.2	210 of 355	40.8%	★★☆☆☆
2019	15.5	310 of 344	9.9%	★☆☆☆☆
2018	23.0	297 of 357	16.8%	★☆☆☆☆

High school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Oregon percentile	Rating
2025	9.3	257 of 270	4.8%	☆☆☆☆☆
2023	54.1	99 of 258	61.6%	★★★☆☆
2022	71.2	59 of 241	75.5%	★★★★☆
2018	75.8	53 of 283	81.3%	★★★★☆
2017	77.5	53 of 283	81.3%	★★★★☆
2016	68.0	80 of 292	72.6%	★★★★☆
2015	42.5	188 of 292	35.6%	★★☆☆☆
2014	66.9	96 of 301	68.1%	★★★☆☆
2013	66.3	99 of 303	67.3%	★★★☆☆
2012	68.6	93 of 308	69.8%	★★★★☆
2011	79.8	38 of 299	87.3%	★★★★☆
2010	69.3	85 of 285	70.2%	★★★★☆
2009	21.2	225 of 263	14.4%	★☆☆☆☆
2008	13.0	228 of 249	8.4%	☆☆☆☆☆
2007	59.5	95 of 244	61.1%	★★★☆☆
2006	55.8	96 of 235	59.1%	★★★☆☆
2005	10.5	216 of 231	6.5%	☆☆☆☆☆
2004	12.6	206 of 225	8.4%	☆☆☆☆☆

Female

Year	Avg score	Statewide rank	Oregon percentile	Rating
2018	90.0	12 of 251	95.2%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	Oregon percentile	Rating
2022	71.6	58 of 241	75.9%	★★★★☆
2018	84.6	18 of 254	92.9%	★★★★★

White

Year	Avg score	Statewide rank	Oregon percentile	Rating
2025	7.7	242 of 250	3.2%	☆☆☆☆☆
2023	72.9	52 of 237	78.1%	★★★★☆
2022	61.5	76 of 228	66.7%	★★★☆☆
2018	67.5	80 of 266	69.9%	★★★★☆

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 (2022)27th percentile~ school

Male (2026)23rd percentile-3 vs school

Female (2026)20th percentile-6 vs school

White (2026)12th percentile-14 vs school

Middle school

Low Socio Economic Status (2022)51st percentile~ school

White (2026)20th percentile-16 vs school

Male (2025)15th percentile~ school

Female (2018)15th percentile-4 vs school

High school

Female (2018)95th percentile+14 vs school

Low Socio Economic Status (2022)76th percentile~ school

White (2025)3rd percentile~ school

By subject vs Oregon (2025-2026) ?

English Language Arts33%-11 vs state

Science23%-7 vs state

Mathematics23%-10 vs state

★

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Schools Near Triangle Lake Charter School

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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 Vaccination Finance All

School													Students/Teachers											Ranking ()				Ranking ()				OSAS English Language Arts (2026)								OSAS Mathematics (2026)								OSAS Science (2026)				Vaccination (2025-26)		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 ()	Statewide Rank ()	State Percentile ()	SchoolDigger Rating ()	Average Standard Score ()	Statewide Rank ()	State Percentile ()	Rank Change from Previous Year	OSAS English Language Arts 3rd Grade	OSAS English Language Arts 4th Grade	OSAS English Language Arts 5th Grade	OSAS English Language Arts 6th Grade	OSAS English Language Arts 7th Grade	OSAS English Language Arts 8th Grade	OSAS English Language Arts 11th Grade	OSAS English Language Arts All Grades	OSAS Mathematics 3rd Grade	OSAS Mathematics 4th Grade	OSAS Mathematics 5th Grade	OSAS Mathematics 6th Grade	OSAS Mathematics 7th Grade	OSAS Mathematics 8th Grade	OSAS Mathematics 11th Grade	OSAS Mathematics All Grades	OSAS Science 5th Grade	OSAS Science 8th Grade	OSAS Science 11th Grade	OSAS Science All Grades	Vaccination: Students (K-12) with all required vaccines	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Triangle Lake Charter School	Public, Charter, Alternative	K-12	20264 Blachly Grange Rd	Blachly	97412	Lane County	Blachly School District 90	Yes	(n/a)	No	Yes	(541) 925-3262	416	18	23.2	69.0%	361 (86.8%)	5 (1.2%)	22 (5.3%)	2 (0.5%)	4 (1.0%)	0 (0.0%)	22 (5.3%)								(n/a)	21.1	23.5	34.8	26.3	40.0			33.0	5.3	29.4	27.3	36.8	26.7			22.9	27.3	10.0	27.3	23.3	69.9%	25.3%	$16,156	$503	$15,653
Alsea Charter School	Public, Charter, Alternative	K-12	301 S Third	Alsea	97324	Benton County	Alsea School District 7J	Yes	(n/a)	No	Yes	(541) 487-4305	235	10	23.8	67.7%	175 (74.5%)	1 (0.4%)	33 (14.0%)	1 (0.4%)	3 (1.3%)	1 (0.4%)	20 (8.5%)								(n/a)	36.0	25.0	42.9	8.7	25.0	16.7	26.7	26.5	29.2	14.3	14.3	13.0	< 5%	< 5%	6.3	13.4	19.0	18.2	31.3	22.9			$28,382	$1,750	$26,632

Frequently Asked Questions about Triangle Lake Charter School

What district is Triangle Lake Charter School in?

Blachly School District 90

How many students attend Triangle Lake Charter School?

In the 2024-25 school year, 416 students attended Triangle Lake Charter School.

What is the racial makeup of Triangle Lake Charter School?

Students at Triangle Lake Charter School are 87% White, 5% Hispanic, 5% Two or more races, 1% African American.

Is Triangle Lake Charter School a good school?

Triangle Lake Charter School ranks 525^th of 709 Oregon alternative schools. SchoolDigger rates this school 1 star out of 5.

Rate Triangle Lake Charter School!

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Latest Oregon data All new data »

2015–16 through 2017–18 immunization rates (updated)Oct 20, 2026

2014–15 through 2025–26 immunization rates (updated)Oct 19, 2026

2025–26 OSAS test scoresSep 25, 2026

2023–24 through 2024–25 school spending dataAug 24, 2026

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Oregon 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.