Johnston Senior High School
🇺🇸 Official data · 2025Johnston, Iowa 50131 · Johnston Comm School District
#142 of 319 high schools in Iowa
#1958 of 16,910 nationally
About Johnston Senior High School
Johnston Senior High School is a public high located in Johnston, in the Johnston Comm School District school district of Iowa, United States. It caters for Grades 10–12. In 2025 it enrolled 1,820 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 75.9 out of 100, placing it in the top 25% of high schools in United States and 142nd of 319 ranked high schools in Iowa. Its strongest component is math proficiency (90th percentile), and its weakest is students per teacher (14th percentile).
Other published figures: enrollment 1,820.
There are 8 schools in Johnston; Johnston Senior High School ranks 7th of 7 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)78%
- Reading proficiency (30%)76%
- Community advantage (fewer free/reduced-price lunch) (25%)22.4%
- Students per teacher (15%)20.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Johnston Senior High School by the official sources.
- Enrollment
- 1,820
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 22.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 20.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 76%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 78%
- Share of tested students proficient or above (all students, all grades).
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Schools near Johnston Senior High School
Closest schools by straight-line distance, with their Success Index (US).
Horizon Elementary
Johnston · Public elementary · Grades K–5
613 students · 1.3 km away
Summit Middle School
Johnston · Public middle · Grades 6–7
1,118 students · 1.5 km away
Beaver Creek Elementary School
Johnston · Public elementary · Grades K–5
575 students · 1.7 km away
South Prairie Elementary
Grimes · Public elementary · Grades K–4
436 students · 3.2 km away
Heritage Elementary
Grimes · Public elementary · Grades PK–4
530 students · 3.7 km away
Timber Ridge Elementary
Johnston · Public elementary · Grades K–5
667 students · 4.1 km away
Johnston Middle School
Johnston · Public other · Grades 8–9
1,161 students · 4.4 km away
Henry A Wallace Elementary School
Johnston · Public elementary · Grades PK–5
840 students · 4.7 km away
North Ridge Elementary
Grimes · Public elementary · Grades K–4
412 students · 4.8 km away
DC-G Oak View
Grimes · Public middle · Grades 7–8
537 students · 4.8 km away
Similar schools
Public high schools in Iowa with a comparable Enrollment.
Prairie High School
Cedar Rapids · Public high · Grades 9–12
1,766 students
Pleasant Valley High School
Bettendorf · Public high · Grades 9–12
1,731 students
Southeast Polk High School
Pleasant Hill · Public high · Grades 10–12
1,722 students
West High School
Waterloo · Public high · Grades 9–12
1,696 students
East High School
Des Moines · Public high · Grades 9–12
1,952 students
Iowa City High School
Iowa City · Public high · Grades 9–12
1,666 students
Frequently asked questions
Is Johnston Senior High School a good school?
Johnston Senior High School has a Success Index (US) of 75.9 out of 100 (Top 25% of high schools in United States) and ranks #142 of 319 in Iowa. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Johnston Senior High School rank in Iowa?
Johnston Senior High School ranks #142 of 319 high schools in Iowa and #1958 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Johnston Senior High School?
Johnston Senior High School had 1,820 students in 2025.
Is Johnston Senior High School a elementary school or a high school?
Johnston Senior High School is classified as a high covering Grades 10–12. It is a public school.
What other schools are near Johnston Senior High School?
There are 10 schools within 15 km of Johnston Senior High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.