Enrollment
1,390
Colorado · 2024-25 NCES data
High school (grades 9-12) · Denver, CO
Thomas Jefferson High School
Federal NCES profile for Thomas Jefferson High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 080336000417
👥 S:T ratio 25
📚 AP courses 60
🌟 Gifted program 70
🎓 Counselors 31
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thomas Jefferson High School earns 37/100 on the Resource Investment Index, with class sizes larger than 78% of Colorado schools. It is also one of the largest schools in Colorado.
- #43 of 45
- high schools in Denver · Resource Index
- 37
- Resource Index · Typical
- 18.8:1
- large classes for Colorado
- 43.5%
- free-lunch eligible
Thomas Jefferson High School has class sizes larger than 78% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Thomas Jefferson High School ranks #43 of 45 high schools in Denver, CO.
School address
NCES ID 080336000417 Verify on NCES CCD record →
Teachers (FTE)
74.0
Federal CCD staff survey
Students per teacher
18.8:1
vs 16.6:1 Colorado avg
+13% vs state
Free-lunch eligible
43.5%
vs 38.5% Colorado avg
+13% vs state
Student-teacher ratio in context
How Thomas Jefferson High School compares with Colorado and U.S. medians
What stands out at Thomas Jefferson High School
Thomas Jefferson High School is a large high school in Denver, Colorado, enrolling 1,390 students.
Class loads run somewhat heavier than typical: 18.8:1 puts it in the larger third of Colorado schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 43.5% of students eligible for free meals.
By headcount it is one of the larger campuses in Colorado, bigger than 96% of state schools at 1,390 students.
Its Resource Investment Index lands in the lower third of 1,922 scored Colorado schools.
Among 47 similarly sized, similarly resourced-need Colorado schools statewide, it ranks #38, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (41%) and White (32%), more mixed than most schools in the state (diversity index 69/100).
On the academic-pipeline side it reports 12 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 348 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 44.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
School District No. 1 in the County of Denver and State of C also operates East High School (2,476 students) and Northfield High School (2,137 students) alongside Thomas Jefferson High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Thomas Jefferson High School compares
Thomas Jefferson High School on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.8:1 | ▲ 13% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 43.5% | ▲ 13% | 38.5% | 51.7% |
| Enrollment | 1,390 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.8:1
Leaner classes than 21% of US schools, heavier class loads than most.
1,390
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
43.5%
free-lunch eligible
- 13% above the Colorado average of 38.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.8:1
students per teacher
- 13% above state mean
Top 78% in Colorado - lower ratio than 22% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
44.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,336
per pupil, district-wide
- below Colorado avg of $16,273
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors4.0 FTE
Per 348 students, the combined health-and-guidance staffing load for this school.
Discipline context
99
in-school suspensions + 73 out-of-school
Suspension rate: 7.1 per 100 students. Combined in-school and out-of-school rate: 12.4 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 41.4%
White 32.2%
African American 16.8%
Two or More 5.0%
Asian 3.8%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 41.4% of enrollment.
Student-body diversity index 69.3/100
Simpson diversity index - at 69.3, Thomas Jefferson High School is more mixed than the Colorado school average of 47.1.
Programs
AP courses offered 12
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for School District No. 1 in the County of Denver and State of C, which includes Thomas Jefferson High School.
$15,336
Per student
-6%
vs Colorado
Avg $16,273
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 70.4%
State 16.8%
Federal 12.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Thomas Jefferson High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East High School | Larger | Lower economic need | Similar S:T ratio |
| Northfield High School | Larger | Lower economic need | Higher S:T ratio |
| South High School | Larger | Similar economic need | Higher S:T ratio |
| North High School | Similar size | Higher economic need | Lower S:T ratio |
| Mcauliffe International School | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Thomas Jefferson High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,476
- Students per teacher
- 20:1
- Resource Index
- 34/100
- Enrollment
- 2,137
- Students per teacher
- 21.6:1
- Resource Index
- 35/100
- Enrollment
- 1,950
- Students per teacher
- 21.4:1
- Resource Index
- 32/100
- Enrollment
- 1,653
- Students per teacher
- 16.7:1
- Resource Index
- 49/100
- Enrollment
- 1,329
- Students per teacher
- 17.3:1
- Resource Index
- 40/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Colorado, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,390 students)
Next steps
Verify locally before acting on Thomas Jefferson High School's federal record.
- Compare Thomas Jefferson High School against another school. Compare schools
- School District No. 1 in the County of Denver and State of C's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Thomas Jefferson High School
How many students attend Thomas Jefferson High School?
Thomas Jefferson High School has 1,390 students enrolled. It is a high school in Denver, CO.
What is the student-teacher ratio at Thomas Jefferson High School?
The student-teacher ratio at Thomas Jefferson High School is 18.8:1, which is 13% higher than the Colorado average of 16.6:1 and 20% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Thomas Jefferson High School?
43.5% of students at Thomas Jefferson High School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Thomas Jefferson High School?
The largest demographic group at Thomas Jefferson High School is Hispanic or Latino at 41.4% of enrollment, in Denver, CO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.3/100.
What is the Resource Investment Index for Thomas Jefferson High School?
Thomas Jefferson High School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Thomas Jefferson High School rank among high schools in Denver?
By Resource Investment Index, Thomas Jefferson High School ranks #43 of 45 high schools in Denver, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Denver on the city page.
Is Thomas Jefferson High School a good school?
Thomas Jefferson High School earns 37/100 on the Resource Investment Index, with class sizes larger than 78% of Colorado schools. It is also one of the largest schools in Colorado. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in School District No. 1 in the County of Denver and State of C?
Besides Thomas Jefferson High School, School District No. 1 in the County of Denver and State of C also operates East High School (2,476 students), Northfield High School (2,137 students), and South High School (1,950 students). See the School District No. 1 in the County of Denver and State of C district page for the complete list.
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Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.