Average
#844 of 1,280 schools in IA
Johnston Senior High School
High School · Johnston Comm School District
PO BOX 10 6500 NW 100th Street, Johnston, IA 50131
Enrollment
1,771
Student-Teacher
21.1:1
Score
5.7
Grades
10th – 12th
Enrollment
1,771
Student-Teacher
21.1:1
Score
5.7
Grades
10th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Iowa schools
#844 of 1,280
In Johnston
#5 of 8
public schools
In district
#5 of 8
Johnston Comm School District
Academic performance
7.4 / 10
Very Good
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Johnston Senior High School
High School in Johnston · grades 10th – 12th. Start here, then compare fit against nearby and district options.
Horizon Elementary
0.8 mi away. Use as a geographic alternative in the same move search.
Summit Middle School
0.9 mi away. Use as a geographic alternative in the same move search.
About Johnston Senior High School
Johnston Senior High School is a public high school in Johnston, IA, part of Johnston Comm School District. Johnston Senior High School serves approximately 1,771 students, and covers grades 10th-12th, and has a 21.1:1 student-teacher ratio. Johnston Senior High School has a current MySchoolScout rating of 5.7 out of 10 and ranks #844 of 1,280 schools in IA.
Structured state assessment records for Johnston Senior High School show 84% math proficiency (multi-year average, 2009-2025) and 84% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 5.7 · Average
- IA avg 6.0
What Parents Should Know
Johnston Senior High School runs 21.1:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
31% of students at Johnston Senior High School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Johnston Senior High School — Students at Johnston Senior High School score 81% proficient, which is below what's typical for similar communities (expected: 81%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
24.7%
Students qualifying for federal meal assistance
Test Scores IA ISASP (2024-25)
Based on 33 test records from IA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.3/10.
How Johnston Senior High School Compares
See how Johnston Senior High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
PO BOX 10 6500 NW 100th Street, Johnston, IA 50131
Nearby Alternatives
Families considering Johnston Senior High School may also want to explore other high schools in the area. Urbandale High School (rated 5.8/10, 3.6 miles away, in nearby Urbandale), with a very similar rating. Additionally, Dallas Center-Grimes High School (rated 5.2/10, 3.4 miles away, in nearby Grimes), with a comparable rating. For more schools in Johnston, see our Johnston schools guide .
Nearby Schools
20 within 5.2 mi| School | Distance | Rating |
|---|---|---|
| Horizon Elementary Johnston | 0.8 mi | 4.8 |
| Summit Middle School Johnston | 0.9 mi | 6.9 |
| Beaver Creek Elementary School Johnston | 1.1 mi | 5.4 |
| South Prairie Elementary Grimes | 2.0 mi | 8.2 |
| Heritage Elementary Grimes | 2.3 mi | 3.3 |
| Timber Ridge Elementary Johnston | 2.6 mi | 6.0 |
| North Ridge Elementary Grimes | 3.0 mi | 8.0 |
| Johnston Middle School Johnston | 2.7 mi | 5.1 |
| Urbandale Middle School Urbandale | 3.3 mi | 6.1 |
| Webster Elementary School Urbandale | 3.4 mi | 7.4 |
| Henry A Wallace Elementary School Johnston | 2.9 mi | 7.5 |
| DC-G Oak View Grimes | 3.0 mi | 7.6 |
| Urbandale High School Urbandale | 3.6 mi | 5.8 |
| Olmsted Elementary School Urbandale | 3.8 mi | 8.4 |
| Karen Acres Elementary School Urbandale | 4.1 mi | 7.4 |
| Lawson Elementary School Johnston | 3.4 mi | 6.8 |
| Dallas Center-Grimes High School Grimes | 3.4 mi | 5.2 |
| Crestview School of Inquiry Clive | 4.8 mi | 3.8 |
| ST PIUS X CATHOLIC SCHOOL Urbandale | 4.4 mi | 4.8 |
| Indian Hills Junior High School Clive | 5.2 mi | 8.0 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 50131 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$103,316
Median Home Value
$347,100
Median Rent
$1,284/mo
Population
24,388
College Educated
58%
Homeownership
72.3%
Avg Commute
19.3 min
Poverty Rate
7.6%
Median Age
38.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Ankeny High School Ankeny, IA | 5.8 |
| Urbandale High School Urbandale, IA | 5.8 |
| Ankeny Centennial High School Ankeny, IA | 5.5 |
| Northwest High School Waukee, IA | 5.5 |
| Bettendorf High School Bettendorf, IA | 6.0 |
| West Senior High School Iowa City, IA | 6.1 |
Frequently Asked Questions
Common questions about Johnston Senior High School
What grades does Johnston Senior High School serve?
Johnston Senior High School serves students in grades 10th through 12th.
How many students attend Johnston Senior High School?
Johnston Senior High School has an enrollment of approximately 1,771 students.
What is the student-teacher ratio at Johnston Senior High School?
The student-teacher ratio at Johnston Senior High School is 21.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Johnston Senior High School rank in IA?
Johnston Senior High School ranks #844 of 1,280 schools in IA.
What is Johnston Senior High School's MySchoolScout rating?
Johnston Senior High School has a current MySchoolScout rating of 5.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Johnston Senior High School?
Based on loaded state assessment records, Johnston Senior High School has 84% math proficiency (multi-year average, 2009-2025) and 84% reading/ELA proficiency (multi-year average, 2009-2025).
Is Johnston Senior High School a charter school?
No, Johnston Senior High School is not a charter school. It is a traditional public school operated by the local school district.
Is Johnston Senior High School a Title I school?
No, Johnston Senior High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Johnston Senior High School?
24.7% of students at Johnston Senior High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
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Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 10th – 12th
- Enrollment
- 1,771
- Student-Teacher Ratio
- 21.1:1
- Teachers (FTE)
- 84
- Free/Reduced Lunch
- 24.7%
- Type
- regular
- Setting
- Large Suburb
- County
- Polk County
- Chronic Absenteeism (SY 2022-23)
- 30.9%
- Phone
- (515) 278-0449
- 4-Year Graduation
- 97.0%
Resources & Links
District
Johnston Comm School District- District Enrollment
- 7,480
- Schools in District
- 8
- Per-Pupil Spending
- $12,378
- District Rank
- #5 of 8
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