John W Thimmig Elementary School

Elementary school·Grades PK-5 Henderson, Colorado·80640
Score
26.6/100
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#569
Among 775 Colorado elementary schools
#7
In School District 27J
#1
In Henderson
Top 74%
In Colorado

Score 26.6/100: better than 26% of Colorado elementary schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% met or exceeded expectations on state tests in Colorado, all students. Colored bars are green when the school is at or above the average for similar Colorado schools.

English language arts
34%
Similar Colorado schools ≈ 47%, better than 33% of them
230 students tested
Math
21%
Similar Colorado schools ≈ 41%, better than 20% of them
231 students tested
Science
18%
Similar Colorado schools ≈ 38%, better than 20% of them
89 students tested
All Colorado schools (ELA / math)
45% / 38%
State average across every school type, 2025-26
All 9 published results by grade and test

As published by Colorado Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 3CMAS31.679
English language artsGrade 4CMAS36.563
English language artsGrade 5CMAS34.188
English language artsAll gradesCMAS33.9230
MathGrade 3CMAS1979
MathGrade 4CMAS28.663
MathGrade 5CMAS16.989
MathAll gradesCMAS20.8231
ScienceGrade 5CMAS1889

School profile

Grades
PK-5
Students
495
Type
Elementary school
Charter school
No
Program
Regular

Students

Enrollment
495
Typical elementary school: 346
Free or reduced-price lunch
60%
Typical elementary school: 48%

District and location

School district
City
Adams County

Contact

Address
11453 OSWEGO STREET
Henderson, CO 80640

"Typical" is the middle (median) elementary school in Colorado. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby elementary schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

John W Thimmig Elementary School at a glance

John W Thimmig Elementary School is a public elementary school in Henderson, Colorado, serving grades PK-5. It is part of School District 27J. It has about 495 students (a typical Colorado elementary school has 346). About 60% of students are eligible for free or reduced-price lunch, compared with 48% at a typical Colorado elementary school, which is useful context when reading test results.

In 2025-26 state tests, 34% in English language arts (similar schools: 47%) and 21% in math (similar schools: 41%) reached the state standard (% met or exceeded expectations). On our score, which compares it only with other Colorado elementary schools, it scores 26.6 out of 100: better than 26% of them, ranking #569 of 775. Its English language arts result was broadly unchanged from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

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Page updated 2026-10-12.