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, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 7 | 54 | 14% |
| Grade 8 | 62 | 16% |
| Grade 9 | 66 | 17% |
| Grade 10 | 65 | 17% |
| Grade 11 | 73 | 19% |
| Grade 12 | 65 | 17% |
Student demographics
12%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 11% · STATE 48% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). 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.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 87.8% | 76.3% |
| 2023-24 | 86.1% | 71.2% |
% Proficient, all students and all tested grades.
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 →
Schools most like Interstate 35 High School
Interstate 35 High School's state test result (80.5% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Interstate 35 High School this school | 385 | 20.5% | 80.5% |
| Bellevue High School Bellevue | 354 | 21.5% | 67.5% |
| Benton Community Senior High School Van Horne | 473 | 20.3% | 71.9% |
| PCM High School Monroe | 348 | 19.5% | 73.9% |
| Cascade Junior-Senior High School Cascade | 392 | 23.2% | 84.2% |
| Roland-Story High School Story City | 317 | 18.0% | 85.2% |
Matched among Iowa high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Interstate 35 High School ranks
Among high schools| Measure | This school | In Iowa |
|---|---|---|
| State test proficiency ranked highest first | 80.5% | #55 of 313 |
| Math proficiency ranked highest first | 76.3% | #102 of 314 ▲ 45 |
| Reading proficiency ranked highest first | 87.8% | #26 of 314 ▲ 21 |
| Enrollment ranked largest first | 385 | #125 of 340 |
| Students per teacher ranked fewest first | 14.4:1 | #133 of 259 |
| Diversity index ranked most diverse first | 11.9% | #228 of 260 |
| Free and reduced lunch ranked highest share first | 20.5% | #284 of 320 |
| Enrollment change since 2017-18 ranked steepest decline first | -14.3% | #38 of 125 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
385
+130 (+51%) vs 2020
Student : Teacher
14.4:1
was 10.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 385 | 26.7 | 14.4:1 | 21% (79) |
| 2023-24 | 266 | 23.2 | 11.5:1 | 21% (57) |
| 2022-23 | 274 | 24.6 | 11.2:1 | 20% (56) |
| 2020-21 | 255 | 24 | 10.6:1 | 23% (58) |
| 2017-18 | 449 | 31 | 14.5:1 | 22% (100) |
| 2015-16 | 442 | 32 | 13.8:1 | 28% (125) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Interstate 35 High School.
Since 2017-18: students down 14% (449 to 385); teachers down 14% (31 to 26.7).
About Interstate 35 High School
Interstate 35 High School is a low-enrollment high school in Truro, Iowa. Grades offered run from 7 through 12, with 385 students enrolled.
The 3 schools in Interstate 35 Comm School District enroll 1,071 students altogether, Interstate 35 High School among them.
Interstate 35 High School enrolls a student body that is 94% White. The rest of enrollment is 4% Hispanic. The White share in Madison County as a whole is similar, at about 95%. The chance that two students picked at random at Interstate 35 High School belong to different racial or ethnic groups, known as the diversity index, is 12%.
A ratio of 14.4:1 comes from the school's 26.7 full-time-equivalent teachers. For comparison, high schools in Iowa average 17.3:1. Free or reduced-price lunch eligibility was 21% in 2024-25.
Based on student poverty, the model expects 81.7% at Interstate 35 High School; the school's average proficiency rate on state tests is 80.5%.
Federal survey data for Madison County show that median household income is about $90,855, 27% of adults hold a bachelor's degree or higher, and about 3% of residents live below the federal poverty line. Interstate 35 High School is among the 10 public schools in Madison County.
Interstate 35 Middle School is the public school closest to Interstate 35 High School, less than a tenth of a mile away. Interstate 35 High School has 2 other public schools within five miles. Nearby schools average 73.1% on proficiency, and Interstate 35 High School is above that at 80.5%.
Federal records code the school's setting as Rural: Distant.
The school's enrollment figures are 255 for 2020-21 and 385 for 2024-25. Differences this large can reflect a change in grade levels, a boundary change, or a merger. The ratio was 10.6:1 in 2020-21 and 14.4:1 in 2024-25.
Conversations here can range across sports schedules, lunch menus, and spirit week. Reviews and ratings from people who know the school are welcome.
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 Junior High School12.2 mi · 256
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.