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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

100 MCCONNELL DRIVE, Lyons, CO 80540

Enrollment

352

Student-Teacher

14.7:1

Score

8.3

Grades

6th – 12th

Data vintage2022-23

How this school compares

Colorado schools

#235 of 1,815

In Lyons

#2 of 2

public schools

In district

#9 of 54

St. Vrain Valley School District No. Re1J

Equity

9.4 / 10

Excellent

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Lyons Middle/senior High School

8.3/10

High School in Lyons · grades 6th – 12th. Start here, then compare fit against nearby and district options.

Lyons Elementary School

8.9/10

0.8 mi away. Use as a geographic alternative in the same move search.

Boulder Sudbury School

Nearby

5.8 mi away. Use as a geographic alternative in the same move search.

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.

Lyons Middle/senior High School serves approximately 352 students, and covers grades 6th-12th, and has a 14.7:1 student-teacher ratio. Lyons Middle/senior High School has a current MySchoolScout rating of 8.3 out of 10 and ranks #235 of 1,815 schools in CO. Structured state assessment records for Lyons Middle/senior High School show 57% math proficiency (multi-year average, 2009-2025) and 75% reading/ELA proficiency (multi-year average, 2009-2025).

How it compares1.4 pts above district
  • This school 8.3 · Excellent
  • District avg 6.9
  • CO avg 6.5

What Parents Should Know

Lyons Middle/senior High School sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress8.8Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-1.83 pts/yr
Data Period2009–2025
TrendDeclining
Academics9.3Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency55.6% (2025 CMAS)
Reading/ELA Proficiency76.8% (2025 CMAS)
Math vs. State Avg+19.5 pts
Reading vs. State Avg+31.9 pts
Overall Proficiency66% (2025 CMAS, Math+ELA)
Expected (poverty-adj.)53% (model expectation from 2025 CMAS)
vs. Expected+13.0 pts
Adjusted Percentile90th
College Readiness7.3Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate90%+
AP Participation17.3%
IB ProgramNo
Resources & Environment7.9Very Good20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio14.7:1
Per-Pupil Spending$14,045
Chronic Absenteeism24.4%

Lyons Middle/senior High School — Students at Lyons Middle/senior High School score 66% proficient, which is above what's typical for similar communities (expected: 53%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

18.2%

Students qualifying for federal meal assistance

Test Scores CO CMAS (2024-25)

Math Proficiency 56.9% (multi-year average, 2009-2025)
School
State
35.1% (2025 CMAS)
ELA Proficiency 74.7% (multi-year average, 2009-2025)
School
State
46.0% (2025 CMAS)

Based on 35 test records from CO state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
93%
ELA
97%
2010
Math
92%
ELA
97%
2011
Math
68%
ELA
83%
2012
Math
65%
ELA
83%
2013
Math
61%
ELA
82%
2014
Math
36%
ELA
48%
2015
Math
47%
ELA
62%
2016
Math
47%
ELA
57%
2017
Math
50%
ELA
60%
2018
Math
53%
ELA
75%
2019
Math
53%
ELA
75%
2020*
Math
47%
ELA
72%
2021*
Math
47%
ELA
72%
2022
Math
42%
2025
Math
55.9%
ELA
76.7%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 8.8/10.

How Lyons Middle/senior High School Compares

See how Lyons Middle/senior High School performs across key quality dimensions compared to state benchmarks.

Overall Score
8.3/10
87th percentile in CO
Academic
9.3/10
Excellent
Growth
8.8/10
Excellent
Environment
7.9/10
Very Good
AP Courses
3
State avg: 2.7
Sports
11
6 boys' · 5 girls'
Advanced STEM
5/5
Subjects offered
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
18%
Teaching Staff
15:1 student-teacher ratio
24 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
24.4%

Programs & Offerings

AP/IB Programs3 AP courses offered
17.3% participation·State avg: 2.7 AP courses·CRDC 2021-22
Athletics11sports offered
6 boys'·5 girls'·19 teams (incl. JV)·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22
Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

100 MCCONNELL DRIVE, Lyons, CO 80540

Nearby Alternatives

Families considering Lyons Middle/senior High School may also want to explore other high schools in the area. Silver Creek High School (rated 7.6/10, 6.7 miles away, in nearby Longmont), with a comparable rating. Additionally, Longmont High School (rated 6.8/10, 8.1 miles away, in nearby Longmont), a more accessible option. For more schools in Lyons, see our Lyons schools guide .

Nearby Schools

20 within 8.6 mi
School Distance Rating
Lyons Elementary School Lyons 0.8 mi 8.9
BOULDER SUDBURY SCHOOL Longmont 5.8 mi
Hygiene Elementary School Longmont 4.9 mi 8.8
Westview Middle School Longmont 6.0 mi 7.0
Blue Mountain Elementary Longmont 6.8 mi 8.3
Silver Creek High School Longmont 6.7 mi 7.6
Longmont Estates Elementary School Longmont 6.4 mi 7.6
Altona Middle School Longmont 7.2 mi 7.3
Eagle Crest Elementary School Longmont 7.3 mi 6.0
DESIDERATA SCHOOL Longmont 7.6 mi
Sanborn Elementary School Longmont 7.7 mi 6.3
BOULDER VALLEY WALDORF SCHOOL Niwot 9.6 mi 6.2
Longs Peak Middle School Longmont 8.0 mi 5.2
Longmont High School Longmont 8.1 mi 6.8
Mountain View Elementary School Longmont 8.2 mi 5.0
GATEWAY MONTESSORI SCHOOL Longmont 8.3 mi
Flagstaff Charter Academy Longmont 8.9 mi 7.5
Northridge Elementary School Longmont 8.3 mi 5.2
Twin Peaks Charter Academy Longmont 8.7 mi 6.7
St. Vrain LaunchED Virtual Academy Longmont 8.6 mi 5.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 80540 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$136,109

Median Home Value

$787,800

Median Rent

$2,016/mo

Population

4,620

College Educated

60.5%

Homeownership

85.6%

Avg Commute

32.9 min

Poverty Rate

6.3%

Median Age

47.2

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
James Irwin Charter High School Colorado Springs, CO 8.3
Power Technical Colorado Springs, CO 8.3
Renaissance Secondary School Castle Rock, CO 8.4
Windsor Charter Academy Early College High School Windsor, CO 8.5
Buena Vista High School Buena Vista, CO 8.1
Cherry Creek Elevation Centennial, CO 8.1

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
33 Car-Dependent
Bike Score
39 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
6th – 12th
Enrollment
352
Student-Teacher Ratio
14.7:1
Teachers (FTE)
24
Free/Reduced Lunch
18.2%
Type
regular
Setting
Distant Rural
County
Boulder County
Chronic Absenteeism (SY 2022-23)
24.4%
4-Year Graduation
90%+

District

St. Vrain Valley School District No. Re1J
District Enrollment
31,757
Schools in District
54
Per-Pupil Spending
$14,045
District Rank
#9 of 54

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