Excellent
#235 of 1,815 schools in CO
Top 13% in state
Lyons Middle/senior High School
High School · St. Vrain Valley School District No. Re1j · Lyons, CO
A St. Vrain Valley School District No. Re1j high school where students score 13 points above what's typical for similar communities.
100 MCCONNELL DRIVE, Lyons, CO 80540
- Math 56% vs CO 35% (2025)
- Reading 77% vs CO 46% (2025)
- 90%+ 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Lyons Middle/senior High School score 66% proficient, which is above what's typical for similar communities (expected: 53%).
2025 CMAS proficiency
Most recent published year. School vs. CO average.
Trend
↑ RecoveringProficiency declined earlier in the 17-year record (2009–2025), then recovered 7 points since 2020, reaching 66% in 2025.
Show all 15 years
Multi-year averages used by the rating model: math 57% (multi-year average, 2009-2025) · reading/ELA 75% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 35 test records from CO state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
18.2%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Lyons Middle/senior High School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 33Car-Dependent
- Bike 39Somewhat Bikeable
- County Safety: Average259/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$136,109
Median home value
$787,800
Median rent
$2,016/mo
College educated
60.5%
Homeownership
85.6%
Poverty rate
6.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 80540; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 in St. Vrain Valley School District No. Re1J
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Erie High SchoolEnrollment path unverified | 7.3 | 9–12 | Not available | 1,759 | Compare → |
| Mead High SchoolEnrollment path unverified | 6.9 | 9–12 | Not available | 1,095 | Compare → |
| Niwot High SchoolEnrollment path unverified | 7.5 | 9–12 | Not available | 1,466 | Compare → |
| Silver Creek High SchoolEnrollment path unverified | 7.6 | 9–12 | Not available | 1,215 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
St. Vrain Valley School District No. Re1j
- Schools in district
- 54
- Rank in district
- #9 of 54
- District spending per student
- $14,045NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 7.3%Census SAIPE · 2024
Lyons Middle/senior High School is listed in St. Vrain Valley School District No. Re1J; a district label does not verify attendance for an address.
About Lyons Middle/senior High School
Lyons Middle/senior High School is a public high school in Lyons, CO, part of St. Vrain Valley School District No. Re1j, serving approximately 352 students in grades 6th-12th with a 14.7:1 student-teacher ratio.
It holds a MySchoolScout rating of 8.3 out of 10 and ranks #235 of 1,815 schools in CO. State assessment records show 57% math proficiency (multi-year average, 2009-2025) and 75% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Lyons Middle/senior High School
What grades does Lyons Middle/senior High School serve?
Lyons Middle/senior High School serves students in grades 6th through 12th.
How many students attend Lyons Middle/senior High School?
Lyons Middle/senior High School has an enrollment of approximately 352 students.
What is the student-teacher ratio at Lyons Middle/senior High School?
The student-teacher ratio at Lyons Middle/senior High School is 14.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Lyons Middle/senior High School rank in CO?
Lyons Middle/senior High School ranks #235 of 1,815 schools in CO.
What is Lyons Middle/senior High School's MySchoolScout rating?
Lyons Middle/senior High School has a current MySchoolScout rating of 8.3 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Lyons Middle/senior High School?
Based on loaded state assessment records, Lyons Middle/senior High School has 57% math proficiency (multi-year average, 2009-2025) and 75% reading/ELA proficiency (multi-year average, 2009-2025).
Is Lyons Middle/senior High School a charter school?
No, Lyons Middle/senior High School is not a charter school. It is a traditional public school operated by the local school district.
Is Lyons Middle/senior High School a Title I school?
No, Lyons Middle/senior High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Lyons Middle/senior High School?
18.2% of students at Lyons Middle/senior High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 6th – 12th
- Enrollment
- 352
- Student-Teacher Ratio
- 14.7:1
- Teachers (FTE)
- 24
- Type
- regular
- Setting
- Distant Rural
- County
- Boulder County
- Chronic Absenteeism (SY 2022-23)
- 24.4%
- Phone
- (303) 823-6631
- 4-Year Graduation
- 90%+
- Area population (ZIP 80540)
- 4,620
- Area average commute
- 32.9 min
- Area median age
- 47.2
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 CMAS · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 CMAS · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 80540; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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