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#844 of 1,280 schools in IA

Johnston Senior High School

High School · Johnston Comm School District · Johnston, IA

A Johnston Comm School District high school serving grades 10th – 12th.

PO BOX 10 6500 NW 100th Street, Johnston, IA 50131

  • Math 80% vs IA 68% (2025)
  • Reading 83% vs IA 73% (2025)
  • 97.0% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress5.3Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-0.94 pts/yr
Data Period2009–2025
TrendStable
Academics7.4Very Good25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency79.5% (2025 ISASP)
Reading/ELA Proficiency82.7% (2025 ISASP)
Math vs. State Avg+10.6 pts
Reading vs. State Avg+7.2 pts
Overall Proficiency81% (2025 ISASP, Math+ELA)
Expected (poverty-adj.)81% (model expectation from 2025 ISASP)
vs. Expected-0.1 pts
Adjusted Percentile62th
College Readiness7.1Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate97%
AP Participation24.9%
IB ProgramNo
Resources & Environment2.1Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio21.1:1
District spending per student$12,378
Chronic Absenteeism30.9%

Students at Johnston Senior High School score 81% proficient, which is below what's typical for similar communities (expected: 81%).

How we calculate scores →

2025 ISASP proficiency

Most recent published year. School vs. IA average.

Math Proficiency80%(2025 ISASP)
School
State
68%(2025 ISASP)
ELA Proficiency83%(2025 ISASP)
School
State
73%(2025 ISASP)

Trend

→ Steady

Proficiency has held near 81% across the 17-year record (2009–2025).

Show all 15 years
2009
Math
85%
ELA
84%
2010
Math
89%
ELA
87%
2011
Math
92%
ELA
89%
2012
Math
91%
ELA
90%
2013
Math
90%
ELA
85%
2014
Math
90%
ELA
90%
2015
Math
89%
ELA
87%
2016
Math
91%
ELA
88%
2017
Math
90%
ELA
87%
2018
Math
78%
ELA
76%
2019
Math
78%
ELA
76%
2020*
Math
76%
ELA
79%
2021*
Math
76%
ELA
79%
2022
Math
69%
ELA
74%
2025
Math
80%
ELA
83%

Multi-year averages used by the rating model: math 84% (multi-year average, 2009-2025) · reading/ELA 84% (multi-year average, 2009-2025)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 33 test records from IA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

24.7%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Johnston Senior High School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 8Car-Dependent
  • Bike 39Somewhat Bikeable
  • City Safety: Elevated826/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Johnston), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$103,316

Median home value

$347,100

Median rent

$1,284/mo

College educated

58%

Homeownership

72.3%

Poverty rate

7.6%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 50131; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs3AP courses offered
24.9% participation·State avg: 1.7 AP courses·CRDC via Urban Institute · SY 2021–22
Athletics21sports offered
9 boys'·12 girls'·30 teams (incl. JV)·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses5of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22
Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

3 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Dallas Center-grimes High SchoolEnrollment path unverified5.29–123.4 mi1,027Compare →
Urbandale High SchoolEnrollment path unverified5.89–123.6 mi1,311Compare →
Hoover High SchoolEnrollment path unverified4.29–124.9 mi923Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Johnston Comm School District

Schools in district
8
Rank in district
#5 of 8
District spending per student
$12,378NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
6.4%Census SAIPE · 2024

Johnston Senior High School is listed in Johnston Comm School District; a district label does not verify attendance for an address.

About Johnston Senior High School

Johnston Senior High School is a public high school in Johnston, IA, part of Johnston Comm School District, serving approximately 1,771 students in grades 10th-12th with a 21.1:1 student-teacher ratio. It holds a MySchoolScout rating of 5.7 out of 10 and ranks #844 of 1,280 schools in IA. State assessment records show 84% math proficiency (multi-year average, 2009-2025) and 84% reading/ELA proficiency (multi-year average, 2009-2025).

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.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
10th – 12th
Enrollment
1,771
Student-Teacher Ratio
21.1:1
Teachers (FTE)
84
Type
regular
Setting
Large Suburb
County
Polk County
Chronic Absenteeism (SY 2022-23)
30.9%
4-Year Graduation
97.0%
Area population (ZIP 50131)
24,388
Area average commute
19.3 min
Area median age
38.5
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 ISASP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 ISASP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 ISASP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 ISASP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 50131; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24

About our data · How we calculate scores

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