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STEM School Highlands Ranch

Public, Charter, Alternative Grades K-12
100th
SchoolDigger Rank ?
of 943 Colorado Alternative Schools
Better than 89% of Colorado alternative schools
Summary

STEM School Highlands Ranch is a K-12 alternative public school in Highlands Ranch, Colorado, serving 1,394 students within the highly rated Douglas County School District No. Re 1. Despite its "alternative" designation, this school performs much more like an elite college-preparatory school than a traditional alternative program, with a 97.8% graduation rate that towers above the state average of 85.6% and a dropout rate that has hovered near zero.

Academically, STEM School Highlands Ranch is among the strongest schools in the region, exceeding district and state averages in every tested subject. On CMAS assessments, 70.5% of students are proficient in ELA and 61.3% in math, compared to state rates of 44.7% and 37.3%. The school's STEM focus is especially evident in high school: 59.3% of 11th graders are proficient in science — more than double the state rate — and 91% are proficient in SAT reading/writing, a 31-point leap over Colorado's average. These results also outpace its closest comparable school, Skyview Academy, which posts 56.4% CMAS ELA proficiency and 81% SAT reading/writing proficiency, though Skyview does hold a slight edge in attendance.

The school's performance has been steadily improving, with CMAS ELA proficiency climbing from 62.8% to 70.5% over four years and math from 53.2% to 61.3%. Chronic absenteeism sits at 16.8% — far better than the state's 28.4% but slightly above Skyview's 10.0%, making attendance the main area to watch. Notably, the school has maintained its academic momentum even as its free/reduced lunch population grew from 5.54% to 13.49%. For parents seeking rigorous academics paired with a genuine STEM identity, this school is a standout option that defies expectations for an alternative school.

1,394
Students ?
17.6
Student/teacher ratio ?
$15,365
Per pupil spending ?
13.5%
Free/discounted lunch ?
 8773 Ridgeline Drive
       Highlands Ranch, CO  80129-2381

(303) 683-7836

District: Douglas County School District No. Re 1

Racial breakdown:

White:
50.7%
Asian:
26.3%
Hispanic:
12.1%
more
 See top rated Colorado elementary schools

 Compare STEM School Highlands Ranch to nearby alternative schools!
At a glance
Ranking trend: Holding steady — 97th percentile in 2023 → 93rd in 2026
Strengths
Test scores above the Colorado average (67% vs 43% meeting standards)
Ranks in the top 11% of Colorado alternative schools
98% graduate in 4 years — above the Colorado average (86%)
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school67%
District avg61%
Colorado avg43%
Elementary school
100th of 943
Colorado public elementary schools ?
Top 11%▲ up 1 pts since 2016
See the entire ranking list of Colorado Elementary Schools →
SchoolDigger rating ?
Middle school
41st of 469
Colorado public middle schools ?
Top 9%▼ down 3 pts since 2016
See the entire ranking list of Colorado Middle Schools →
SchoolDigger rating ?
High school
23rd of 338
Colorado public high schools ?
Top 7%▼ down 2 pts since 2016
See the entire ranking list of Colorado High Schools →
SchoolDigger rating ?
1st of 2Alternative Schools in the Douglas County School District No. Re 1
6th of 115Douglas County School District No. Re 1 among Colorado districts
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 rankColorado percentileRating
202687.6100 of 94389.4%★★★★☆
202580.8169 of 95082.2%★★★★☆
202481.6157 of 94383.4%★★★★☆
202381.7149 of 93384.0%★★★★☆
202276.1197 of 92178.6%★★★★☆
202183.3122 of 71082.8%★★★★☆
201991.362 of 96593.6%★★★★★
201888.385 of 91790.7%★★★★★
201788.781 of 92991.3%★★★★★
201685.4104 of 91488.6%★★★★☆
201489.561 of 96293.7%★★★★★

Asian

YearAvg scoreStatewide rankColorado percentileRating
202550.98 of 1338.5%★★★☆☆
202461.07 of 1241.7%★★★☆☆
202335.112 of 1520.0%★★☆☆☆
202237.66 of 1040.0%★★☆☆☆
202140.85 of 616.7%★★★☆☆
201973.24 of 1163.6%★★★★☆
201857.35 of 944.4%★★★☆☆

Female

YearAvg scoreStatewide rankColorado percentileRating
202675.2154 of 69277.7%★★★★☆
202564.4214 of 69469.2%★★★☆☆
202473.2154 of 68477.5%★★★★☆
202377.6124 of 64280.7%★★★★☆
202268.6170 of 59571.4%★★★★☆
202167.2133 of 35162.1%★★★☆☆
201986.964 of 75891.6%★★★★★
201884.370 of 69089.9%★★★★☆

Gifted and Talented

YearAvg scoreStatewide rankColorado percentileRating
202663.152 of 12056.7%★★★☆☆
202562.952 of 11956.3%★★★☆☆
202453.555 of 9139.6%★★☆☆☆
202355.447 of 8242.7%★★☆☆☆
201962.645 of 11059.1%★★★☆☆
201861.540 of 8452.4%★★★☆☆

Hispanic

YearAvg scoreStatewide rankColorado percentileRating
202687.815 of 24994.0%★★★★★

Male

YearAvg scoreStatewide rankColorado percentileRating
202686.669 of 69490.1%★★★★★
202580.8117 of 70083.3%★★★★☆
202476.6141 of 68379.4%★★★★☆
202372.3164 of 64974.7%★★★★☆
202268.8174 of 59470.7%★★★★☆
202180.770 of 35280.1%★★★★☆
201988.559 of 76492.3%★★★★★
201885.876 of 69389.0%★★★★☆

White

YearAvg scoreStatewide rankColorado percentileRating
202658.8230 of 54657.9%★★★☆☆
202552.4271 of 55150.8%★★★☆☆
202441.8329 of 53939.0%★★☆☆☆
202347.9278 of 52547.0%★★☆☆☆
202238.1309 of 45431.9%★★☆☆☆
202151.7164 of 28843.1%★★☆☆☆
201970.5145 of 59675.7%★★★★☆
201871.485 of 33774.8%★★★★☆
Middle school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankColorado percentileRating
202688.941 of 46991.3%★★★★★
202589.143 of 46990.8%★★★★★
202483.962 of 48587.2%★★★★☆
202384.658 of 48087.9%★★★★☆
202287.144 of 44890.2%★★★★★
202192.623 of 36993.8%★★★★★
201991.629 of 45893.7%★★★★★
201888.132 of 41892.3%★★★★★
201787.142 of 42490.1%★★★★★
201691.024 of 40094.0%★★★★★
201594.518 of 43695.9%★★★★★
201490.328 of 46193.9%★★★★★

Asian

YearAvg scoreStatewide rankColorado percentileRating
202664.910 of 2763.0%★★★☆☆
202558.412 of 2653.8%★★★☆☆
202464.98 of 2161.9%★★★☆☆
202351.411 of 1838.9%★★☆☆☆
202259.06 of 1560.0%★★★★☆
202147.34 of 633.3%★★★☆☆
201976.46 of 2576.0%★★★★☆
201866.66 of 1662.5%★★★★☆

Female

YearAvg scoreStatewide rankColorado percentileRating
202684.047 of 36587.1%★★★★☆
202583.841 of 34788.2%★★★★☆
202479.554 of 35084.6%★★★★☆
202382.552 of 36385.7%★★★★☆
202283.243 of 32686.8%★★★★☆
202185.623 of 25490.9%★★★★★
201990.424 of 35293.2%★★★★★
201888.123 of 31592.7%★★★★★

Gifted and Talented

YearAvg scoreStatewide rankColorado percentileRating
202663.563 of 15459.1%★★★☆☆
202564.147 of 13264.4%★★★☆☆
202470.331 of 12675.4%★★★★☆
202357.566 of 12547.2%★★☆☆☆
202266.432 of 9365.6%★★★☆☆
201966.635 of 13473.9%★★★★☆
201870.124 of 12180.2%★★★★☆

Hispanic

YearAvg scoreStatewide rankColorado percentileRating
202696.29 of 20795.7%★★★★★
202573.832 of 21885.3%★★★★☆
202381.224 of 19887.9%★★★★☆
201997.76 of 22097.3%★★★★★
201899.92 of 16598.8%★★★★★

Male

YearAvg scoreStatewide rankColorado percentileRating
202686.740 of 36989.2%★★★★☆
202586.939 of 35288.9%★★★★☆
202480.753 of 35785.2%★★★★☆
202379.456 of 35684.3%★★★★☆
202284.436 of 32889.0%★★★★☆
202190.918 of 24992.8%★★★★★
201990.628 of 34391.8%★★★★★
201887.826 of 31791.8%★★★★★

Multi-racial

YearAvg scoreStatewide rankColorado percentileRating
201993.91 of 3196.8%★★★★★

White

YearAvg scoreStatewide rankColorado percentileRating
202656.6113 of 27558.9%★★★☆☆
202559.795 of 27565.5%★★★☆☆
202452.7120 of 27356.0%★★★☆☆
202358.8102 of 28664.3%★★★☆☆
202263.377 of 26570.9%★★★★☆
202172.745 of 20377.8%★★★★☆
201965.180 of 28371.7%★★★★☆
201867.550 of 19974.9%★★★★☆
High school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankColorado percentileRating
202691.123 of 33893.2%★★★★★
202594.313 of 32896.0%★★★★★
202494.115 of 34995.7%★★★★★
202394.312 of 34996.6%★★★★★
202294.07 of 22196.8%★★★★★
202194.37 of 21096.7%★★★★★
201998.08 of 41198.1%★★★★★
201884.149 of 38887.4%★★★★☆
201777.819 of 25692.6%★★★★★
201683.411 of 25595.7%★★★★★
201593.77 of 29297.6%★★★★★
201493.510 of 36997.3%★★★★★

Asian

YearAvg scoreStatewide rankColorado percentileRating
202684.04 of 4390.7%★★★★★
202580.17 of 4383.7%★★★★☆
202488.32 of 4395.3%★★★★★
202378.45 of 4388.4%★★★★★
202274.36 of 4586.7%★★★★☆
202174.79 of 4178.0%★★★★☆

Female

YearAvg scoreStatewide rankColorado percentileRating
202686.929 of 24588.2%★★★★☆
202587.728 of 24788.7%★★★★☆
202492.911 of 25795.7%★★★★★
202393.312 of 25495.3%★★★★★
202291.418 of 25793.0%★★★★★
202192.013 of 23994.6%★★★★★
201852.63 of 30.0%★★★★☆

Gifted and Talented

YearAvg scoreStatewide rankColorado percentileRating
202661.763 of 14355.9%★★★☆☆
202567.249 of 13664.0%★★★☆☆
202476.413 of 14090.7%★★★★★
202374.717 of 13587.4%★★★★☆
202278.83 of 10897.2%★★★★★
202176.85 of 11895.8%★★★★★
201851.52 of 20.0%★★★★☆

Hispanic

YearAvg scoreStatewide rankColorado percentileRating
202394.413 of 19893.4%★★★★★
202299.34 of 20598.0%★★★★★
202199.43 of 18198.3%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankColorado percentileRating
202699.23 of 20898.6%★★★★★

Male

YearAvg scoreStatewide rankColorado percentileRating
202691.017 of 24393.0%★★★★★
202593.814 of 24694.3%★★★★★
202492.916 of 25693.8%★★★★★
202392.812 of 25295.2%★★★★★
202296.34 of 25398.4%★★★★★
202195.95 of 24097.9%★★★★★
201836.93 of 30.0%★★★★☆

White

YearAvg scoreStatewide rankColorado percentileRating
202678.941 of 22181.4%★★★★☆
202586.622 of 20989.5%★★★★☆
202490.611 of 22995.2%★★★★★
202389.213 of 23494.4%★★★★★
202290.513 of 22894.3%★★★★★
202188.813 of 22594.2%★★★★★
201836.52 of 20.0%★★★★☆
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
Hispanic (2026)94th percentile+5 vs school
Male (2026)90th percentile~ school
Female (2026)78th percentile-12 vs school
White (2026)58th percentile-32 vs school
Gifted and Talented (2026)57th percentile-33 vs school
Asian (2025)38th percentile-44 vs school
Middle school
Multi-racial (2019)97th percentile+3 vs school
Hispanic (2026)96th percentile+4 vs school
Male (2026)89th percentile~ school
Female (2026)87th percentile-4 vs school
Asian (2026)63rd percentile-28 vs school
Gifted and Talented (2026)59th percentile-32 vs school
White (2026)59th percentile-32 vs school
High school
Low Socio Economic Status (2026)99th percentile+5 vs school
Hispanic (2023)93rd percentile-3 vs school
Male (2026)93rd percentile~ school
Asian (2026)91st percentile~ school
Female (2026)88th percentile-5 vs school
White (2026)81st percentile-12 vs school
Gifted and Talented (2026)56th percentile-37 vs school
By subject vs Colorado (2025-2026) ?
Reading and Writing82%+16 vs state
English Language Arts70%+26 vs state
Mathematics63%+23 vs state
Math61%+24 vs state
Science56%+23 vs state

3.5
6 ratings · 4 written reviews
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What people are saying
by a parent
Friday, January 30, 2026

Open Quote

STEM School Highlands Ranch is a school where students are truly known and supported. The teachers are deeply committed to both academic excellence and student well-being, taking time to build strong relationships and meet learners where they are. They are approachable, passionate, and consistently go the extra mile to help students succeed.

The administrative team and principals are visible, responsive, and genuinely invested in the school community. Their leadership fosters a culture of care, high expectations, and open communication, creating an environment where students feel safe, valued, and challenged. Close Quote


by a parent
Sunday, July 5, 2020

Open Quote We brought 2 kids here from American Academy.
1 was 6th, now 8th, and other was 1st, now 3rd.

AA was a good school, but stem is even better. the teachers here really are spectacular.
The admin has been amazing. They have dealt with a shooting, subsequent lose of teachers, pandemic, politics from certain parents, working on a start-up charter school, etc. With a different admin, I would imagine that they would be too distracted to really pay attention to the school. Close Quote


by a parent
Sunday, February 5, 2017

Open Quote My daughter moved here at the beginning of this school year. We could not be more pleased! Challenging academics, kind considerate teaching staff and a wonderful school community, where tolerance & respect for one another are abundant! Close Quote


by a parent
Tuesday, November 24, 2015

Open Quote Please know that STEM only graduated its first class last spring, 2015 and about 45 students. These numbers can therefore, be deceiving and a longer term set of results will yield a better understanding overall. Close Quote





Schools Near STEM School Highlands Ranch

Ranking:
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Frequently Asked Questions about STEM School Highlands Ranch

In the 2024-25 school year, 1,394 students attended STEM School Highlands Ranch.

Students at STEM School Highlands Ranch are 51% White, 26% Asian, 12% Hispanic, 8% Two or more races, 3% African American.

STEM School Highlands Ranch ranks 100th of 943 Colorado alternative schools. SchoolDigger rates this school 4 stars out of 5.

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Latest Colorado data All new data »
2025–26 CMAS, PSAT10, PSAT9 & SAT test scoresAug 19, 2026
2024–25 school spending dataJun 13, 2026
2024–25 dropout rates & graduation ratesJan 13, 2026
2024–25 attendance dataAug 27, 2025


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