Thornton Middle School
🇺🇸 Official data · 2025Thornton, Colorado 80229 · Adams 12 Five Star Schools
#256 of 262 middle schools in Colorado
#14860 of 15,369 nationally
About Thornton Middle School
Thornton Middle School is a public middle located in Thornton, in the Adams 12 Five Star Schools school district of Colorado, United States. It caters for Grades 6–8. In 2025 it enrolled 721 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 12.5 out of 100, placing it in the lower 50% of middle schools in United States and 256th of 262 ranked middle schools in Colorado. Its strongest component is students per teacher (36th percentile), and its weakest is reading proficiency (3th percentile).
Other published figures: enrollment 721.
There are 36 schools in Thornton; Thornton Middle School ranks 31st of 31 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)10%
- Reading proficiency (30%)16%
- Community advantage (fewer free/reduced-price lunch) (25%)84.2%
- Students per teacher (15%)16.4
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Thornton Middle School by the official sources.
- Enrollment
- 721
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 84.2%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 16.4
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 16%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 10%
- Share of tested students proficient or above (all students, all grades).
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Schools near Thornton Middle School
Closest schools by straight-line distance, with their Success Index (US).
Thornton High School
Thornton · Public high · Grades 9–12
1,439 students · 284 m away
Thornton Elementary School
Thornton · Public elementary · Grades PK–5
387 students · 364 m away
North Mor Elementary School
Northglenn · Public elementary · Grades PK–5
304 students · 1.2 km away
Achieve Academy
Thornton · Public elementary · Grades PK–8
370 students · 1.5 km away
York International
Thornton · Public other · Grades K–12
776 students · 1.6 km away
Preschool on Poze
Thornton · Public other · Grades PK–PK
193 students · 1.7 km away
McElwain Elementary School
Thornton · Public elementary · Grades K–5
361 students · 1.8 km away
North Star Elementary School
Denver · Public elementary · Grades PK–5
320 students · 1.9 km away
Academy High School
Thornton · Public high · Grades 9–12
399 students · 2.0 km away
Clayton Partnership School
Thornton · Public elementary · Grades K–8
430 students · 2.0 km away
Similar schools
Public middle schools in Colorado with a comparable Enrollment.
Ken Caryl Middle School
Littleton · Public middle · Grades 6–8
725 students
Century Middle School
Thornton · Public middle · Grades 6–8
717 students
Coal Ridge Middle School
Firestone · Public middle · Grades 6–8
727 students
Altona Middle School
Longmont · Public middle · Grades 6–8
715 students
Horizon Middle School
Aurora · Public middle · Grades 6–8
714 students
Webber Middle School
Fort Collins · Public middle · Grades 6–8
728 students
Frequently asked questions
Is Thornton Middle School a good school?
Thornton Middle School has a Success Index (US) of 12.5 out of 100 (Lower 50% of middle schools in United States) and ranks #256 of 262 in Colorado. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Thornton Middle School rank in Colorado?
Thornton Middle School ranks #256 of 262 middle schools in Colorado and #14860 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Thornton Middle School?
Thornton Middle School had 721 students in 2025.
Is Thornton Middle School a elementary school or a high school?
Thornton Middle School is classified as a middle covering Grades 6–8. It is a public school.
What other schools are near Thornton Middle School?
There are 10 schools within 15 km of Thornton Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.