Thornton High School
9351 Washington Street, Thornton, CO 80229 Map
Test score trends
Share of students who met or exceeded the state standard each year.
Latest results by grade
| Grade | Math | English | Science |
|---|---|---|---|
| Grade 9 | 10% state 41% · 2025-26 | 26% state 66% · 2025-26 | — |
| Grade 10 | 13% state 39% · 2025-26 | 31% state 65% · 2025-26 | — |
| Grade 11 | 6% state 32% · 2025-26 | 18% state 60% · 2025-26 | — |
| All grades | 10% state 37% · 2025-26 | 25% state 63% · 2025-26 | — |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 10% state 37% | 25% state 63% | — |
| 2024-25 | 9% state 35% | 29% state 63% | — |
| 2023-24 | 10% state 35% | 31% state 63% | — |
| 2022-23 | 18% state 40% | 33% state 63% | — |
| 2021-22 | 15% state 39% | 32% state 63% | — |
| 2018-19 | 17% state 42% | 34% state 63% | — |
Compared with similar schools
Colorado high schools where 15–25% of students come from families below the poverty line (this school: 20%)
- Math, 2025-26: this school 10%, typical similar school 18%. Higher than 11% of 62 similar schools.
- English, 2025-26: this school 25%, typical similar school 42%. Higher than 14% of 72 similar schools.
Similar schools nearby with higher scores
- Northglenn High School 1.2 mi from this school · math 18% · English 42%
- Academy High School 1.3 mi from this school · math 17% · English 43%
- Victory Preparatory Academy High State Charter School 6.1 mi from this school · math 27% · English 52%
Family income strongly affects test scores, so comparing a school with others that serve families like its own is fairer than comparing it with the state average. The share of students below the poverty line is an estimate by the Urban Institute for 2022-23, made the same way in every state; it is a stricter measure than the low-income share above (free or reduced-price lunch, which goes up to 185% of the poverty line), so it is lower. “Typical” is the median: half of the similar schools score higher, half lower.
Graduation & college
Graduation rate: students who earned a regular diploma within four years.
Students
Race and ethnicity, 2024-25
- Asian 10%
- White 15%
- Hispanic 71%
- Black 2%
- Two or more 2%
- Other 0%
Students with disabilities: 14% of students (201) receive special education under an IEP (individualized education program), 2023-24; another 4% have only a Section 504 plan (support such as extra time or seating, without special education), 2023-24. Source: U.S. Department of Education, Civil Rights Data Collection.
Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).
Nearby schools
Subject percentages show the share of students who met or exceeded the state standard.
| Pick to compare | |||||
|---|---|---|---|---|---|
|
New America School - Thornton
Grades 9–12
Charter
Alternative
· Adams 12 Five Star Schools
|
0.6 mi | — |
7%
|
85% | |
|
York International
Grades K–12
· Mapleton School District No. 1 in the county of Adams & St
|
1.1 mi |
32%
−5
vs state
|
32%
−13
vs state
|
73% | |
|
Northglenn High School
Grades 9–12
· Adams 12 Five Star Schools
|
1.2 mi |
18%
−19
vs state
|
42%
−21
vs state
|
72% | |
|
Academy High School
Grades 9–12
· Mapleton School District No. 1 in the county of Adams & St
|
1.3 mi |
17%
−20
vs state
|
43%
−21
vs state
|
74% | |
|
Mapleton Expeditionary School of the Arts
Grades 9–12
· Mapleton School District No. 1 in the county of Adams & St
|
1.4 mi |
3%
|
12%
−31
vs state · 2022-23
|
69% | |
|
Mapleton Early Career Preparation
Grades 9–12
· Mapleton School District No. 1 in the county of Adams & St
|
1.4 mi |
13%
−27
vs state
|
45%
−19
vs state
|
72% | |
|
The Pinnacle Charter School
Grades K–12
Charter
· State Charter School Institute
|
1.5 mi |
7%
−30
vs state
|
16%
−28
vs state
|
81% | |
|
Vantage Point
Grades 6–12
Alternative
· Adams 12 Five Star Schools
|
2.1 mi | — |
12%
−53
vs state
|
74% | |
|
Global Leadership Academy
Grades 9–12
· Mapleton School District No. 1 in the county of Adams & St
|
2.5 mi | — | — | 76% | |
|
Mapleton Online
Grades K–12
Virtual
· Mapleton School District No. 1 in the county of Adams & St
|
2.5 mi | — |
18%
|
— |
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