Lester R Arnold High School
Commerce City · CO · School District N. 14 in the county of Adams & State of Colo · Public
At a glance
- Gifted & talented program
- AP rigor: Bottom 14% of US high schools
- SAT/ACT participation: 60th percentile by test-taker volume
- 4-yr grad rate: 37% in 2019 (Bottom 8% of US high schools by 4-yr grad rate)
Composed from federal CRDC offerings, EDFacts graduation data, and other public data. Full breakdowns below.
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How Lester R Arnold High School compares for families
What families should know about Lester R Arnold High School.
- ▸ LocallyCO students outperform the US average on NAEP 8th-grade math (+4 points).
- ▸ vs Similar SchoolsThe closest comparables nearby: New America School - Thornton, Colorado High School Charter - GES, Montbello Career and Technical High School and 5 more. See the sidebar to compare side-by-side.
For Parents
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Objective, government-grade data — no school pays us for placement.
SAT / ACT participation
CRDC federal data · 2020-2160th percentile by test-taker volume
Source: federal Civil Rights Data Collection (CRDC 2020-21). Volume — not score — is what's reported here. A higher count means more students at this school are entering the college admissions pipeline. Note: 2020-21 was COVID-disrupted; some districts (especially those that stayed remote longer) report unusually low or zero takers.
4-year graduation rate · federal EDFacts
What % of students graduate on time?
Bottom 8% of US high schools by 4-yr grad rate
Source: federal EDFacts ACGR (Adjusted Cohort Graduation Rate), 2019 vintage via Urban Institute. EDFacts publishes a range (low-high) to preserve privacy on small cohorts; we display the midpoint.
Teacher workforce · federal CRDC
Teacher experience & reliability
Source: federal Civil Rights Data Collection (CRDC 2017-18 — the most recent vintage that publishes per-school teacher quality fields; the 2020-21 sweep had them suppressed). "Inexperienced" = teachers in their first or second year. "Chronic absence" = teachers absent 10+ days/year.
Federal Title I context
High-poverty school
Title I Schoolwide eligible
≥75% of students qualify for free/reduced lunch. These schools qualify for the highest tier of federal Title I funding and typically receive extra wraparound services. Academic outcomes vary widely — check the state assessment + grad-rate tiles.
Source: NCES Common Core of Data, free/reduced-price lunch eligibility. The actual Title I designation is a district decision and may differ from eligibility — but the federal eligibility math is what we show here. We don't claim to assert whether the district formally chose to enroll this school in Title I.
Your state's public flagship
University of Colorado Boulder
The in-state tuition gap is the flagship's biggest draw — most in-state families pay far less than the out-of-state sticker. Average net price after aid runs about $25,346/yr. Admission odds depend on your student's GPA and test scores, not which high school they attend.
Source: IPEDS admissions, tuition & enrollment + College Scorecard net price. Flagship = the state's primary public research university.
Counselor capacity
Source: U.S. Department of Education, Civil Rights Data Collection 2020-2021. Counselor ratio = the school's most recent total enrollment ÷ counselor FTE. The American School Counselor Association (ASCA) recommends a 250:1 maximum; the US national median across schools with on-staff counselors is roughly 430:1.
Enrollment trend & projection
Total enrollment + grade 12, NCES Common Core of Data (2021–2024).
If the recent trend holds…
At its recent rate of -0.8%/year, projecting from 2024's 184 students:
A small or specialty program — naive trend math doesn't capture the school's full picture. Read the trend as directional, not predictive.
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
Most similar nearby high schools
The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| New America School - Thornton THORNTON |
Public · charter | 4.3 | 190 | -22.1% |
| Colorado High School Charter - GES DENVER |
Public · charter | 4.5 | 209 | +43.2% |
| Montbello Career and Technical High School DENVER |
Public | 6.9 | 158 | +66.3% |
| Legacy Options High School DENVER |
Public | 7.3 | 153 | +15.9% |
| AUL Denver DENVER |
Public · charter | 7.7 | 156 | -0.6% |
| Victory Preparatory Academy High State Charter School COMMERCE CITY |
Public · charter | 2.0 | 118 | +5.4% |
| Vista Academy DENVER |
Public | 7.3 | 242 | +30.8% |
| York International THORNTON |
Public | 3.7 | 287 | -7.1% |
At a glance
JSON · Using this page with an AI assistantLester R Arnold High School is a public high school in Commerce City, CO, enrolling 184 students in grades 9-12 in 2024.
Enrollment is down 38% from 2021 to 2024.
102 students took the SAT or ACT in the most recent federal count, a participation level above 60% of U.S. high schools.
Its federal four-year graduation rate was about 37% in the latest EDFacts release.
It has about 184 students per school counselor.
Sources: National Center for Education Statistics (enrollment), the federal Civil Rights Data Collection and EDFacts, state education agencies where named, and the school's own published documents where named.
Questions families ask
What is Lester R Arnold High School's graduation rate? Lester R Arnold High School's federal four-year graduation rate was about 37% in the latest EDFacts release.
How many students attend Lester R Arnold High School? Lester R Arnold High School is a public high school in Commerce City, CO, enrolling 184 students in grades 9-12 in 2024.
Analysis: Test Prep Gurus (High School Reach, highschoolreach.com). These figures may be quoted with attribution to Test Prep Gurus.
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Related reading
AP courses · October 2026
Test scores · October 2026