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Very Good

#543 of 1,815 schools in CO

Top 30% in state

Jefferson County Open Secondary

High School · Jefferson County School District No. R-1 · Lakewood, CO

A Jefferson County School District No. R-1 high school where students score 16 points below what's typical for similar communities.

7655 WEST 10TH AVENUE, Lakewood, CO 80215

  • Math 33% vs CO 36% (2025)
  • Reading 59% vs CO 46% (2025)
  • 64.5% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress8.8Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-1.94 pts/yr
Data Period2009–2025
TrendDeclining
Academics5.9Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency32.9% (2025 CMAS)
Reading/ELA Proficiency59.3% (2025 CMAS)
Math vs. State Avg-3.2 pts
Reading vs. State Avg+14.4 pts
Overall Proficiency46% (2025 CMAS, Math+ELA)
Expected (poverty-adj.)62% (model expectation from 2025 CMAS)
vs. Expected-16.1 pts
Adjusted Percentile42th
College Readiness6.9Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate64.5%
IB ProgramNo
Resources & Environment8.5Excellent20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio14.7:1
District spending per student$14,483
Chronic Absenteeism20.1%

Students at Jefferson County Open Secondary score 46% proficient, which is below what's typical for similar communities (expected: 62%).

How we calculate scores →

2025 CMAS proficiency

Most recent published year. School vs. CO average.

Math Proficiency33%(2025 CMAS)
School
State
36%(2025 CMAS)
ELA Proficiency59%(2025 CMAS)
School
State
46%(2025 CMAS)

Trend

↑ Recovering

Proficiency declined earlier in the 17-year record (2009–2025), then recovered 7 points since 2020, reaching 46% in 2025.

Show all 15 years
2009
Math
52%
ELA
98%
2010
Math
67%
ELA
98%
2011
Math
27%
ELA
77%
2012
Math
34%
ELA
72%
2013
Math
37%
ELA
67%
2014
Math
17%
ELA
37%
2015
Math
17%
ELA
32%
2016
Math
17%
ELA
32%
2017
Math
27%
ELA
57%
2018
Math
27%
ELA
57%
2019
Math
27%
ELA
57%
2020*
Math
27%
ELA
52%
2021*
Math
27%
ELA
52%
2022
Math
22%
2025
Math
33%
ELA
59%

Multi-year averages used by the rating model: math 31% (multi-year average, 2009-2025) · reading/ELA 60% (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 33 test records from CO state assessments and EdFacts (NCES).

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 rate

The neighborhood

Where Jefferson County Open Secondary sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Denver map →

Getting around & local context

  • Walk 61Somewhat Walkable
  • Transit 49Some Transit
  • Bike 69Bikeable
  • City Safety: High5,900/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Lakewood), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$85,017

Median home value

$615,500

Median rent

$1,728/mo

College educated

49%

Homeownership

57.9%

Poverty rate

9.4%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 80215; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Advanced STEM Courses3of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22
Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Jeffco Transition Services SchoolEnrollment path unverified5.011–121.3 mi136Compare →
Jefferson Junior/senior High SchoolEnrollment path unverified5.17–121.3 mi594Compare →
Lakewood High SchoolEnrollment path unverified7.79–121.3 mi1,798Compare →
Beth Eden Baptist SchoolPrivate · tuition8.0privateK–121.5 mi111Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Public and private scores come from different models and are shown side by side, not blended into one ranking.

Jefferson County School District No. R-1

Schools in district
148
Rank in district
#54 of 140
District spending per student
$14,483NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
7.4%Census SAIPE · 2024

Jefferson County Open Secondary is listed in Jefferson County School District No. R-1; a district label does not verify attendance for an address.

About Jefferson County Open Secondary

Jefferson County Open Secondary is a public high school in Lakewood, CO, part of Jefferson County School District No. R-1, serving approximately 324 students in grades 7th-12th with a 14.7:1 student-teacher ratio. It holds a MySchoolScout rating of 7.4 out of 10 and ranks #543 of 1,815 schools in CO.

State assessment records show 31% math proficiency (multi-year average, 2009-2025) and 60% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Jefferson County Open Secondary

What grades does Jefferson County Open Secondary serve?

Jefferson County Open Secondary serves students in grades 7th through 12th.

How many students attend Jefferson County Open Secondary?

Jefferson County Open Secondary has an enrollment of approximately 324 students.

What is the student-teacher ratio at Jefferson County Open Secondary?

The student-teacher ratio at Jefferson County Open Secondary 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 Jefferson County Open Secondary rank in CO?

Jefferson County Open Secondary ranks #543 of 1,815 schools in CO.

What is Jefferson County Open Secondary's MySchoolScout rating?

Jefferson County Open Secondary has a current MySchoolScout rating of 7.4 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 Jefferson County Open Secondary?

Based on loaded state assessment records, Jefferson County Open Secondary has 31% math proficiency (multi-year average, 2009-2025) and 60% reading/ELA proficiency (multi-year average, 2009-2025).

Is Jefferson County Open Secondary a charter school?

No, Jefferson County Open Secondary is not a charter school. It is a traditional public school operated by the local school district.

Is Jefferson County Open Secondary a Title I school?

No, Jefferson County Open Secondary is not currently a Title I school.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
7th – 12th
Enrollment
324
Student-Teacher Ratio
14.7:1
Teachers (FTE)
22
Type
regular
Setting
Large Suburb
County
Jefferson County
Chronic Absenteeism (SY 2022-23)
20.1%
4-Year Graduation
64.5%
Area population (ZIP 80215)
19,684
Area average commute
26.4 min
Area median age
37.9
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 80215; 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

About our data · How we calculate scores

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