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Below Average

#1621 of 1,815 schools in CO

Thornton Middle School

Middle School · Adams 12 Five Star Schools · Thornton, CO

An Adams 12 Five Star Schools middle school where students score 9 points below what's typical for similar communities.

9451 HOFFMAN WAY, Thornton, CO 80229

  • Math 5% vs CO 37% (2025)
  • Reading 10% vs CO 46% (2025)
  • 16.7:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress6.4Average40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-3.36 pts/yr
Data Period2009–2025
TrendDeclining
Academics2.5Needs Improvement35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency4.5% (2025 CMAS)
Reading/ELA Proficiency9.8% (2025 CMAS)
Math vs. State Avg-31.6 pts
Reading vs. State Avg-35.1 pts
Overall Proficiency7% (2025 CMAS, Math+ELA)
Expected (poverty-adj.)17% (model expectation from 2025 CMAS)
vs. Expected-9.3 pts
Adjusted Percentile8th
Resources & Environment2.3Needs Improvement25%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio16.7:1
District spending per student$14,748
Chronic Absenteeism76.4%

Students at Thornton Middle School score 7% proficient, which is below what's typical for similar communities (expected: 16%).

How we calculate scores →

2025 CMAS proficiency

Most recent published year. School vs. CO average.

Math Proficiency5%(2025 CMAS)
School
State
37%(2025 CMAS)
ELA Proficiency10%(2025 CMAS)
School
State
46%(2025 CMAS)

Trend

→ Steady

Proficiency is down 60 points across the 17-year record (2009–2025) and has held near 8% recently.

Show all 15 years
2009
Math
63%
ELA
71%
2010
Math
65%
ELA
67%
2011
Math
24%
ELA
33%
2012
Math
22%
ELA
32%
2013
Math
25%
ELA
37%
2014
Math
10%
ELA
13%
2015
Math
11%
ELA
16%
2016
Math
12%
ELA
16%
2017
Math
7%
ELA
14%
2018
Math
10%
ELA
16%
2019
Math
10%
ELA
16%
2020*
Math
5%
ELA
12%
2021*
Math
5%
ELA
12%
2022
Math
6%
2025
Math
5%
ELA
10%

Multi-year averages used by the rating model: math 18% (multi-year average, 2009-2025) · reading/ELA 23% (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).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

91.2%

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 rate

The neighborhood

Where Thornton Middle School 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 76Very Walkable
  • Transit 30Some Transit
  • Bike 39Somewhat Bikeable
  • City Safety: High3,129/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Thornton), 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

$83,450

Median home value

$382,900

Median rent

$1,719/mo

College educated

19.8%

Homeownership

67.7%

Poverty rate

9.1%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 80229; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

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
York InternationalEnrollment path unverified5.2K–121.0 mi767Compare →
The Pinnacle Charter SchoolCharter · enrollment unverified4.7K–121.7 mi1,909Compare →
Northglenn Middle SchoolEnrollment path unverified3.26–82.0 mi640Compare →
Global Intermediate AcademyEnrollment path unverified5.84–82.5 mi354Compare →

Distance is proximity only; it is not attendance eligibility.

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

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Adams 12 Five Star Schools

Schools in district
54
Rank in district
#45 of 53
District spending per student
$14,748NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
8.8%Census SAIPE · 2024

Thornton Middle School is listed in Adams 12 Five Star Schools; a district label does not verify attendance for an address.

About Thornton Middle School

Thornton Middle School is a public middle school in Thornton, CO, part of Adams 12 Five Star Schools, serving approximately 719 students in grades 6th-8th with a 16.7:1 student-teacher ratio. It holds a MySchoolScout rating of 4.0 out of 10 and ranks #1,621 of 1,815 schools in CO. State assessment records show 18% math proficiency (multi-year average, 2009-2025) and 23% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Thornton Middle School

What grades does Thornton Middle School serve?

Thornton Middle School serves students in grades 6th through 8th.

How many students attend Thornton Middle School?

Thornton Middle School has an enrollment of approximately 719 students.

What is the student-teacher ratio at Thornton Middle School?

The student-teacher ratio at Thornton Middle School is 16.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Thornton Middle School rank in CO?

Thornton Middle School ranks #1,621 of 1,815 schools in CO.

What is Thornton Middle School's MySchoolScout rating?

Thornton Middle School has a current MySchoolScout rating of 4.0 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 Thornton Middle School?

Based on loaded state assessment records, Thornton Middle School has 18% math proficiency (multi-year average, 2009-2025) and 23% reading/ELA proficiency (multi-year average, 2009-2025).

Is Thornton Middle School a charter school?

No, Thornton Middle School is not a charter school. It is a traditional public school operated by the local school district.

Is Thornton Middle School a Title I school?

No, Thornton Middle School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Thornton Middle School?

91.2% of students at Thornton Middle 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 – 8th
Enrollment
719
Student-Teacher Ratio
16.7:1
Teachers (FTE)
43
Type
regular
Setting
Large Suburb
County
Adams County
Chronic Absenteeism (SY 2022-23)
76.4%
Area population (ZIP 80229)
57,274
Area average commute
29.5 min
Area median age
32.6
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 80229; 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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