Enrollment
385
Iowa · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 191467002196
Interstate 35 High School — Truro, IA
Federal NCES profile for Interstate 35 High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 41/100.
👥 Class size 54
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 13
📋 Attendance 60
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Interstate 35 Comm School District · Iowa
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
24.0
Federal CCD staff survey
Students per teacher
11.4:1
vs 15:1 Iowa avg
-24% vs state
Free-lunch eligible
18.2%
vs 36.4% Iowa avg
-50% vs state
Student-teacher ratio in context
How Interstate 35 High School compares with Iowa and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Interstate 35 High School reports 385 enrolled students to the National Center for Education Statistics (NCES) alongside 24.0 full-time-equivalent teachers, producing a 11.4:1 student-teacher ratio. That figure sits 24% below the Iowa state mean of 15:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 28% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 18.2% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 50% below the Iowa average and 65% below the national baseline. Counselor coverage works out to roughly 438 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 16.1% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Interstate 35 Comm School District spends $14,519 per pupil district-wide, below the Iowa average of $17,211 and below the national average of $19,490. Revenue comes 44.2% from local sources (property taxes), 47.2% from the state, and 8.6% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 41/100 (D), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Interstate 35 High School compares
Cross-validating school-level NCES values against Iowa state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Iowa | Iowa avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.4:1 | ▼ 24% | 15:1 | 15.9:1 |
| Free-lunch eligible | 18.2% | ▼ 50% | 36.4% | 51.8% |
| Enrollment | 385 | top 65% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
18.2%
free-lunch eligible
— 50% below the Iowa average of 36.4%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.4:1
students per teacher
— 24% below state mean
Top 11% in Iowa — lower ratio than 89% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
16.1%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$14,519
per pupil, district-wide
— below Iowa avg of $17,211
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.9 FTE
Per 438 students — the combined health-and-guidance staffing load for this school.
Discipline context
4
in-school suspensions + 36 out-of-school
Suspension rate: 1.0 per 100 students. Combined in-school and out-of-school rate: 10.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Overview
Enrollment 385 Top 65% in Iowa — larger than 35% of 1,326 state schools
Teachers (FTE) 24.0
Students per teacher 11.4:1 -24% vs state
Free-lunch eligible 18.2% -50% vs state
NCES ID 191467002196
Student demographics
White 93.8%
Hispanic or Latino 3.6%
Two or More 1.8%
African American 0.3%
Asian 0.3%
American Indian / Alaska Native 0.3%
Largest group: White at 93.8% of enrollment.
Programs & staff
AP program Not offered
Gifted & talented Yes
Counselors (FTE) 0.9
Students per counselor 438:1
Discipline & special education
Chronically absent 16.1%
In-school suspensions 4
Out-of-school suspensions 36
Expulsions 1
Funding & spending
District-wide per-pupil expenditure for Interstate 35 Comm School District, which includes Interstate 35 High School.
$14,519
Per student
-16%
vs Iowa
Avg $17,211
-26%
vs U.S.
Avg $19,490
Revenue mix
Local 44.2%
State 47.2%
Federal 8.6%
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.
Other Schools in This District
- Enrollment
- 458
- Students per teacher
- 12.8:1
- Enrollment
- 234
- Students per teacher
- 19.5:1
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Interstate 35 High School
How many students attend Interstate 35 High School?
Interstate 35 High School has 385 students enrolled. It is a high school in Truro, IA.
What is the student-teacher ratio at Interstate 35 High School?
The student-teacher ratio at Interstate 35 High School is 11.4:1, which is 24% lower than the Iowa average of 15:1 and 28% lower than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Interstate 35 High School?
18.2% of students at Interstate 35 High School are eligible for free lunch, compared to the Iowa average of 36.4%.
What is the racial and ethnic makeup of Interstate 35 High School?
The largest demographic group at Interstate 35 High School is White at 93.8%. The school serves a diverse student body in Truro, IA.
What is the Resource Investment Index for Interstate 35 High School?
Interstate 35 High School has a Resource Investment Index of 41/100 (D) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.