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Triangle Lake Charter School

Public, Charter, Alternative Grades K-12
197th
SchoolDigger Rank ?
of 706 Oregon Alternative Schools
Better than 72% of Oregon alternative schools
Summary

Triangle Lake Charter School is a public charter school located in Blachly, Oregon, serving 399 students from kindergarten through 12th grade. While the school offers an alternative educational approach, it faces several challenges compared to state averages.

The school's 4-year graduation rate has ranged from 55.6% to 81.8% in recent years, lower than the state average of around 80%. Additionally, Triangle Lake Charter School has had significantly higher chronic absenteeism rates, ranging from 8.9% to 38.1%, compared to the state average of 15-20%. Academically, the school's test scores in English Language Arts, Mathematics, and Science are consistently lower than state averages across all grade levels. For example, the 11th grade ELA proficiency rate was 14.3%, compared to the state average of 44.4%, and the 8th grade Math proficiency rate was only 5.3%, compared to the state average of 28.9%.

Interestingly, the nearby Alsea Charter School, which serves a similar student population, also has lower test scores and graduation rates compared to state averages, though its chronic absenteeism rate is slightly lower than Triangle Lake Charter School's. Additionally, Blachly School District 90, which oversees Triangle Lake Charter School, spends between $17,044 and $18,632 per student, higher than the state average. Despite these challenges, the school's charter status may provide opportunities to implement innovative strategies to address the unique needs of its student population and improve academic outcomes.

416
Students ?
23.2
Student/teacher ratio ?
$18,632
Per pupil spending ?
69%
Free/discounted lunch ?
 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%
more
 See top rated Oregon elementary schools

 Compare Triangle Lake Charter School to nearby alternative schools!
At a glance
Ranking trend: Declining — 50th percentile in 2022 → 5th in 2025
Strengths
93% graduate in 4 years — above the Oregon average (83%)
Above the Oregon median (72nd percentile)
Worth a look
!Ranking has slipped — down 45 percentile points since 2022
!Some student groups rank well below the school's overall statewide standing
!Large classes — about 23 students per teacher
Students meeting standards (2024-2025) ?
This school32%
District avg32%
Oregon avg37%
Elementary school
197th of 706
Oregon public elementary schools ?
Top 28%▲ up 15 pts since 2015
From top 43% (2015) to top 28% (2025)
See the entire ranking list of Oregon Elementary Schools →
SchoolDigger rating ?
Middle school
306th of 368
Oregon public middle schools ?
Bottom 17%▼ down 34 pts since 2015
From top 49% (2015) to bottom 17% (2025)
See the entire ranking list of Oregon Middle Schools →
SchoolDigger rating ?
High school
257th of 270
Oregon public high schools ?
Bottom 5%▼ down 31 pts since 2015
From bottom 36% (2015) to bottom 5% (2025)
See the entire ranking list of Oregon 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

YearAvg scoreStatewide rankOregon percentileRating
202566.2197 of 70672.1%★★★★☆
202437.3424 of 71040.3%★★☆☆☆
202323.7558 of 70621.0%★☆☆☆☆
202227.4520 of 70626.3%★☆☆☆☆
201926.1544 of 70522.8%★☆☆☆☆
201853.6314 of 70955.7%★★★☆☆
201738.1450 of 70135.8%★★☆☆☆
201655.7285 of 69759.1%★★★☆☆
201553.1301 of 70657.4%★★★☆☆
201451.4348 of 69549.9%★★★☆☆
201365.8218 of 70769.2%★★★☆☆
201249.0394 of 73046.0%★★☆☆☆
201178.3107 of 69584.6%★★★★☆
201076.1129 of 67480.9%★★★★☆
200964.8226 of 66566.0%★★★☆☆
200855.7305 of 65553.4%★★★☆☆
200766.5192 of 65270.6%★★★★☆
200666.5210 of 63667.0%★★★☆☆
200535.4464 of 62926.2%★☆☆☆☆

Female

YearAvg scoreStatewide rankOregon percentileRating
202579.7103 of 65384.2%★★★★☆
201918.0547 of 62111.9%★☆☆☆☆
201847.9355 of 68147.9%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankOregon percentileRating
202227.6516 of 70326.6%★☆☆☆☆
201931.4455 of 59723.8%★☆☆☆☆
201865.9168 of 64073.8%★★★★☆

Male

YearAvg scoreStatewide rankOregon percentileRating
202541.7354 of 66446.7%★★☆☆☆
202438.6382 of 66242.3%★★☆☆☆
202327.2501 of 66524.7%★☆☆☆☆
201858.9255 of 68062.5%★★★☆☆

White

YearAvg scoreStatewide rankOregon percentileRating
202553.0285 of 66957.4%★★★☆☆
202419.9563 of 67016.0%★☆☆☆☆
202318.8575 of 65612.3%★☆☆☆☆
202220.0570 of 66614.4%★☆☆☆☆
201916.9598 of 6629.7%☆☆☆☆☆
201855.3296 of 68356.7%★★★☆☆
Middle school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankOregon percentileRating
202520.6306 of 36816.8%★☆☆☆☆
202431.4248 of 37133.2%★★☆☆☆
202329.8272 of 38028.4%★☆☆☆☆
202245.9182 of 36750.4%★★★☆☆
201916.2338 of 37910.8%★☆☆☆☆
201824.0310 of 38419.3%★☆☆☆☆
201722.4313 of 38218.1%★☆☆☆☆
201635.2270 of 38329.5%★☆☆☆☆
201550.0187 of 38150.9%★★★☆☆
201460.3149 of 38261.0%★★★☆☆
201379.251 of 37786.5%★★★★☆
201268.799 of 39574.9%★★★★☆
201174.656 of 35784.3%★★★★☆
201063.9111 of 34367.6%★★★☆☆
200965.592 of 32371.5%★★★★☆
200863.397 of 31569.2%★★★☆☆
200743.3189 of 29535.9%★★☆☆☆
200624.0241 of 28515.4%★☆☆☆☆
200526.5220 of 27118.8%★☆☆☆☆
200465.776 of 27071.9%★★★★☆

Female

YearAvg scoreStatewide rankOregon percentileRating
201823.9290 of 34215.2%★☆☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankOregon percentileRating
202246.3178 of 36451.1%★★★☆☆
201935.4183 of 28235.1%★★☆☆☆
201829.5260 of 32520.0%★☆☆☆☆

Male

YearAvg scoreStatewide rankOregon percentileRating
202520.7279 of 33015.5%★☆☆☆☆
201911.2276 of 2915.2%☆☆☆☆☆
201832.1248 of 34127.3%★☆☆☆☆

White

YearAvg scoreStatewide rankOregon percentileRating
202514.5319 of 3519.1%☆☆☆☆☆
202425.5266 of 34923.8%★☆☆☆☆
202312.6335 of 3606.9%☆☆☆☆☆
202241.2210 of 35540.8%★★☆☆☆
201915.5310 of 3449.9%★☆☆☆☆
201823.0297 of 35716.8%★☆☆☆☆
High school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankOregon percentileRating
20259.3257 of 2704.8%☆☆☆☆☆
202354.199 of 25861.6%★★★☆☆
202271.259 of 24175.5%★★★★☆
201875.853 of 28381.3%★★★★☆
201777.553 of 28381.3%★★★★☆
201668.080 of 29272.6%★★★★☆
201542.5188 of 29235.6%★★☆☆☆
201466.996 of 30168.1%★★★☆☆
201366.399 of 30367.3%★★★☆☆
201268.693 of 30869.8%★★★★☆
201179.838 of 29987.3%★★★★☆
201069.385 of 28570.2%★★★★☆
200921.2225 of 26314.4%★☆☆☆☆
200813.0228 of 2498.4%☆☆☆☆☆
200759.595 of 24461.1%★★★☆☆
200655.896 of 23559.1%★★★☆☆
200510.5216 of 2316.5%☆☆☆☆☆
200412.6206 of 2258.4%☆☆☆☆☆

Female

YearAvg scoreStatewide rankOregon percentileRating
201890.012 of 25195.2%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankOregon percentileRating
202271.658 of 24175.9%★★★★☆
201884.618 of 25492.9%★★★★★

White

YearAvg scoreStatewide rankOregon percentileRating
20257.7242 of 2503.2%☆☆☆☆☆
202372.952 of 23778.1%★★★★☆
202261.576 of 22866.7%★★★☆☆
201867.580 of 26669.9%★★★★☆
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
Female (2025)84th percentile+12 vs school
White (2025)57th percentile-15 vs school
Male (2025)47th percentile-25 vs school
Low Socio Economic Status (2022)27th percentile~ school
Middle school
Low Socio Economic Status (2022)51st percentile~ school
Male (2025)15th percentile~ school
Female (2018)15th percentile-4 vs school
White (2025)9th percentile-8 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 (2024-2025) ?
English Language Arts36%-8 vs state
Mathematics31%~ state avg
Science29%~ state avg

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Frequently Asked Questions about Triangle Lake Charter School

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

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

Triangle Lake Charter School ranks 197th of 706 Oregon alternative schools. SchoolDigger rates this school 4 stars out of 5.


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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.





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