Enrollment
385
High
DISTRICT 357 · STATE 468
SCHOOL COMMUNITY·INTERSTATE 35 COMM SCHOOL DISTRICT·NCES 191467002196
Interstate 35 High School
405 E North St, Truro, IA 50257 · (641) 765-4818 · Madison County
GRADES 07–12HIGH42-RURALREGULAR SCHOOL385 STUDENTS
Student : Teacher
14.4:1
27 FTE teachers
DISTRICT 15.8:1 · STATE 17.3:1
Free / Reduced Lunch
21%
79 students
DISTRICT 23% · STATE 41%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Interstate 35 Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
87.8%
IA avg 73.6% . +1.7pp since 2023
Math
76.3%
IA avg 70.9% . +5.1pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 88 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are up about 2 points since 2023, while math scores are up about 5 points.
Source: ISASP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
80.5%
composite math + reading, all grades
Predicted
81.7%
based on IA schools with similar FRL share
Beats by
-1.2pp
below demographic expectation
What this means: About 81% of students here test proficient in math and reading, compared with the roughly 82% typical for Iowa schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Iowa's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
385
-64 (-14%) vs 2017
Student : Teacher
14.4:1
was 14.5:1
% White
94%
was 95%
% Hispanic
4%
was 2%
% Black
0%
was 1%
% Asian
0%
was 0%
Source: NCES Common Core of Data
About Interstate 35 High School
Interstate 35 High School, a compact secondary school in Truro, Iowa, one of the schools within Interstate 35 Comm School District, hosts 385 students, covering grades 7 through 12.
Interstate 35 Comm School District comprises 3 schools with combined enrollment of 1,071 students; Interstate 35 High School is among them.
For racial and ethnic makeup, Interstate 35 High School reports that 94% of students identify as White, making the school strongly White-majority. The remainder looks like 4% Hispanic. Compared to Madison County overall, the school's racial mix sits in roughly the same range.
Looking at school resources, Interstate 35 High School logs 27 full-time-equivalent teachers, putting the student-to-teacher ratio at about 14.4:1. That figure is tighter than the state norm's 17.3:1 average. Around 21% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy.
Adjusting for the school's free-and-reduced-lunch share, Interstate 35 High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 81.7%, the actual is 80.5%, a residual of -1.2 points.
In the surrounding community, ACS estimates for Madison County put the typical household earns roughly $90,855 per year, roughly 27% of adults have completed at least a four-year degree, and the poverty rate sits near 3%. Interstate 35 High School is one of 10 public schools in Madison County (combined enrollment of about 3,355 students).
Nearest neighbor: Interstate 35 Middle School, around 0.0 miles off. Within five miles, there are 2 other public schools. On composite proficiency, Interstate 35 High School comes 2nd of 9 in the immediate cluster, higher than the nearby-schools average of 73.1%.
The school occupies a small-town site.
Over the past 7-year window. Over the past 7-year window, the student count edged down 14%: 449 students in 2018 compared to 385 in 2025.
On allk12, the feed for Interstate 35 High School typically covers science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.
Madison County at a glance
View full county profilePopulation
16,926
Census ACS
Median income
$90,855
Household, ACS
Bachelor's+
27%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
10
3,355 students
Quick facts
Related schools
Other schools in Interstate 35 Comm School District
- Interstate 35 Elementary SchoolElementary · 458 students
- Interstate 35 Middle SchoolMiddle · 228 students
Other schools in Truro
- Interstate 35 Elementary SchoolElementary · 458 students
- Interstate 35 Middle SchoolMiddle · 228 students
Nearby schools
- Interstate 35 Middle School0.0 mi · 228
- Interstate 35 Elementary School0.0 mi · 458
- Winterset Middle School12.0 mi · 351
- Clarke Community Middle School12.1 mi · 289
- Clarke Community High School12.1 mi · 421
- Winterset Senior High School12.2 mi · 530
Frequently asked questions
About Interstate 35 High SchoolHow many students attend Interstate 35 High School?
Interstate 35 High School enrolls approximately 385 students in grades 07-12.
What age range does Interstate 35 High School serve?
Interstate 35 High School serves students from grade 07 through grade 12.
How many students per teacher at Interstate 35 High School?
Approximately 14.4:1 students per teacher at Interstate 35 High School.
What is the racial breakdown of students at Interstate 35 High School?
At Interstate 35 High School, the student body is approximately 94% White, 4% Hispanic, 0% Black, 0% Asian, 2% Two or more.
Who oversees Interstate 35 High School?
Interstate 35 High School is overseen by Interstate 35 Comm School District in Madison County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.