Enrollment
318
Missouri · 2024-25 NCES data
High school (grades 9-12) · Trenton, MO
Trenton Sr. High
Federal NCES profile for Trenton Sr. High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 293036002080
👥 S:T ratio 53
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 68
📋 Attendance 40
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Trenton Sr. High earns 48/100 on the Resource Investment Index, with class sizes near the Missouri median.
- #3 of 4
- public schools in Trenton · Resource Index
- 48
- Resource Index · Typical
- 11.8:1
- students per teacher
- 35.6%
- free-lunch eligible
Trenton Sr. High has class sizes near the Missouri median. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Trenton Sr. High ranks #3 of 4 public schools in Trenton, MO.
School address
District: Trenton R-Ix · Missouri
NCES ID 293036002080 Verify on NCES CCD record →
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
11.8:1
vs 12.8:1 Missouri avg
-8% vs state
Free-lunch eligible
35.6%
vs 46.1% Missouri avg
-23% vs state
Student-teacher ratio in context
How Trenton Sr. High compares with Missouri and U.S. medians
What stands out at Trenton Sr. High
Trenton Sr. High is a mid-sized high school in Trenton, Missouri, enrolling 318 students.
Class sizes run a bit leaner than typical: 11.8:1 puts it in the smaller third of Missouri schools by student-teacher ratio.
Its free-meal eligibility rate of 35.6% lands close to the Missouri typical range, neither a high- nor low-need campus by this measure.
With 318 students, its enrollment sits close to the Missouri median campus size.
Its Resource Investment Index lands in the upper third of 2,313 scored Missouri schools.
Against 520 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #56.
Its student body is predominantly White (93% of enrollment) (diversity index 14/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 159 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 24.2% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 22.6% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 80 in- and out-of-school suspensions were reported for 318 students in the 2021-22 Civil Rights Data Collection.
Trenton R-Ix also operates Rissler Elem. (350 students) and Trenton Middle (299 students) alongside Trenton Sr. High.
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 Trenton Sr. High compares
Trenton Sr. High on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.8:1 | ▼ 8% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 35.6% | ▼ 23% | 46.1% | 51.7% |
| Enrollment | 318 | top 49% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.8:1
Leaner classes than 77% of US schools, among the more generously staffed nationally.
318
Bigger than 35% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
35.6%
free-lunch eligible
- 23% below the Missouri average of 46.1%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.8:1
students per teacher
- 8% below state mean
Top 38% in Missouri - lower ratio than 62% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
24.2%
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
$11,265
per pupil, district-wide
- below Missouri avg of $12,931
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 159 students, the combined health-and-guidance staffing load for this school.
Discipline context
49
in-school suspensions + 31 out-of-school
Suspension rate: 15.4 per 100 students. Combined in-school and out-of-school rate: 25.2 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
White 92.5%
Hispanic or Latino 3.5%
Native Hawaiian / Pacific Islander 1.6%
Two or More 1.3%
Asian 0.6%
African American 0.3%
American Indian / Alaska Native 0.3%
Largest group: White at 92.5% of enrollment.
Student-body diversity index 14.3/100
Simpson diversity index - at 14.3, Trenton Sr. High is less mixed than the Missouri school average of 31.0.
Programs
AP program Not offered
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Trenton R-Ix, which includes Trenton Sr. High.
$11,265
Per student
-13%
vs Missouri
Avg $12,931
-32%
vs U.S.
Avg $16,593
Revenue mix
Local 45.5%
State 31.9%
Federal 22.6%
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 Trenton Sr. High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rissler Elem. | Similar size | Similar economic need | Lower S:T ratio |
| Trenton Middle | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Trenton Sr. High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 350
- Students per teacher
- 9.2:1
- Resource Index
- 66/100
- Enrollment
- 299
- Students per teacher
- 10.7:1
- Resource Index
- 63/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Missouri, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~318 students)
Similar student-teacher ratio (~11.8:1)
Next steps
Verify locally before acting on Trenton Sr. High's federal record.
- Compare Trenton Sr. High against another school. Compare schools
- Trenton R-Ix'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 Trenton Sr. High
How many students attend Trenton Sr. High?
Trenton Sr. High has 318 students enrolled. It is a high school in Trenton, MO.
What is the student-teacher ratio at Trenton Sr. High?
The student-teacher ratio at Trenton Sr. High is 11.8:1, which is 8% lower than the Missouri average of 12.8:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Trenton Sr. High?
35.6% of students at Trenton Sr. High are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Trenton Sr. High?
The largest demographic group at Trenton Sr. High is White at 92.5% of enrollment, in Trenton, MO.
What is the Resource Investment Index for Trenton Sr. High?
Trenton Sr. High has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Trenton Sr. High rank among public schools in Trenton?
By Resource Investment Index, Trenton Sr. High ranks #3 of 4 public schools in Trenton, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Trenton on the city page.
Is Trenton Sr. High a good school?
Trenton Sr. High earns 48/100 on the Resource Investment Index, with class sizes near the Missouri median. 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 Trenton R-Ix?
Besides Trenton Sr. High, Trenton R-Ix also operates Rissler Elem. (350 students) and Trenton Middle (299 students). See the Trenton R-Ix district page for the complete list.
Related tools
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.