School overview
At a glance
Reported students
1,820
NCES CCD 2024–25, where reported
Teachers (FTE)
87.19
NCES CCD 2024–25
Student–teacher ratio
20.9:1
Calculated, not a class-size measure
Grades served
10–12
NCES preliminary directory 2025–26
School benchmarks
Iowa high enrollment
99th percentile
Compared with 343 same-level schools reporting enrollment.
District median enrollment
753.5
Johnston Senior High School: 1,820 reported students.
State peer staffing position
94th percentile
20.9:1 reported; state peer median 13.9:1. Ratio is not class size.
Profile interpretation
What the reported data says about Johnston Senior High School
Johnston Senior High School is a public high school serving grades 10–12 in Johnston. It is one of 8 current school records connected to Johnston Comm School District. NCES reports 1,820 students for 2024–25.
Among 343 high schools in Iowa with comparable records, this school is larger than the reported median of 294 students. Its enrollment is at approximately the 99th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 20.9:1, above the Iowa median of 13.9:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The two largest reported race and ethnicity groups are White (67.7%) and Black (10.7%). English learners represent 5.5% of enrollment. Students served under IDEA represent 9.2%. These figures help families understand who the school serves; they are not rating inputs.
The 2021–22 civil-rights collection reports access to Advanced Placement, gifted and talented programming, computer science. The school reported 17 AP courses. Program availability changes, so families should confirm the current catalog and participation rules directly with the school.
Turn data into a school visit
Questions worth asking Johnston Senior High School
- 1How do the reported 20.9:1 student–teacher ratio and 87.19 teacher FTE translate into actual class sizes by grade?
- 2Have the reported academic programs changed since the 2021–22 CRDC collection?
- 3How are the school's 4.5 counselor FTE allocated across grades and student needs?
- 4What meal assistance, transportation, after-school, and family-support services are currently available?
Student context
Enrollment needs
- English learners
- 5.5%
- Students with disabilities
- 9.2%
- Free/reduced-price lunch
- 22.4%
- Lunch program
- Yes participating without using any Provision or the CEO
People available to students
Support staff
- Counselors (FTE)
- 4.5
- Nurses (FTE)
- 1
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 0
Student demographics
Race and ethnicity share of reported enrollment
- White67.7%
- Hispanic7.8%
- Black10.7%
- Asian8%
- American Indian / Alaska Native0.1%
- Native Hawaiian / Pacific Islander0.1%
- Multiracial5.1%
Race/ethnicity: NCES CCD 2024–25 where reported, otherwise CRDC 2021–22. English learner and disability context: CRDC 2021–22. Privacy rules can produce missing values.
Learning opportunities
Programs reported by the school
Advanced Placement
Offered
17 courses reported
Gifted and talented
Offered
Computer science
Offered
Program availability is from CRDC 2021–22 and can change. Confirm current courses and eligibility with the school.
Continue exploring
Other schools in Johnston Comm School District
Start with campuses at the same school level or with similar reported enrollment.
Johnston Middle School
Other · Grades 08–09
1,161 reported students
Summit Middle School
Middle · Grades 06–07
1,118 reported students
Henry A Wallace Elementary School
Elementary · Grades PK–05
840 reported students
Timber Ridge Elementary
Elementary · Grades KG–05
667 reported students
Horizon Elementary
Elementary · Grades KG–05
613 reported students
Beaver Creek Elementary School
Elementary · Grades KG–05
575 reported students