Johnston Senior High School
Johnston Senior High School is a very large high in Johnston, Iowa, serving grades 10–12 with 1,790 students. The district invests $13,296 per student — close to the national average of $14,347, with a 19.9:1 student-teacher ratio near the national norm. With only 23% of students on free or reduced-price lunch, the school primarily serves an economically stable community. The school's 97% graduation rate — above the national average of 87% — reflects strong completion outcomes for its students.
Student Body & Demographics at Johnston Senior High School
Academic Outcomes at Johnston Senior High School
School Resources & Funding
- 97% graduation rate — well above the 87% national average
- Traditional public school — open enrollment, no application process required
Best suited for families in Johnston seeking a public high school, especially those prioritizing strong graduation outcomes and academic completion. We always recommend an in-person visit and a conversation with current families before making any enrollment decision.
Questions to Ask on Your School Visit
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Frequently Asked Questions
About this school and the data on this page
All figures on this page come directly from US federal open datasets — NCES Common Core of Data, EDFacts, and the Opportunity Atlas — and we work hard to keep them accurate and up to date. That said, federal data is published on an annual cycle, so some figures may not yet reflect the very latest school-year changes or local updates. We recommend using this page as a helpful starting point and cross-checking with the school or district directly, or visiting the NCES Common Core of Data and ed.gov for the most authoritative figures before making any important decisions.