Johnston Senior High School
Score 84.9/100: better than 84% of Iowa high schools on 2024-25 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2024-25)
% proficient on state tests in Iowa, all students. Colored bars are green when the school is at or above the average for similar Iowa schools.
All 5 published results by grade and test
As published by Iowa Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 10 | ISASP/DLM | 85.8 | 586 |
| English language arts | Grade 11 | ISASP/DLM | 79.5 | 533 |
| Math | Grade 10 | ISASP/DLM | 80.5 | 586 |
| Math | Grade 11 | ISASP/DLM | 78.5 | 534 |
| Science | Grade 10 | ISASP/DLM | 80.5 | 586 |
School profile
- Grades
- 10-12
- Students
- 1,771
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
Johnston, IA 50131
"Typical" is the middle (median) high school in Iowa. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Johnston
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Johnston Senior High School at a glance
Johnston Senior High School is a public high school in Johnston, Iowa, serving grades 10-12. It is part of Johnston Comm School District. It has about 1,771 students (a typical Iowa high school has 321). About 23% of students are eligible for free or reduced-price lunch, compared with 36% at a typical Iowa high school, which is useful context when reading test results.
In 2024-25 state tests, 83% in English language arts (similar schools: 74%) and 80% in math (similar schools: 67%) reached the state standard (% proficient). On our score, which compares it only with other Iowa high schools, it scores 84.9 out of 100: better than 84% of them, ranking #45 of 294. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.