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Excellent

#52 of 1,280 schools in IA

Top 4% in state

Clear Lake High School

High School · Clear Lake Comm School District · Clear Lake, IA

A Clear Lake Comm School District high school where students score 10 points above what's typical for similar communities.

125 N 20th St, Clear Lake, IA 50428

  • Math 85% vs IA 71% (2025)
  • Reading 87% vs IA 74% (2025)
  • 95%+ 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress9.5Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change+0.29 pts/yr
Data Period2009–2025
TrendStable
Academics9.3Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency85.3% (2025 ISASP)
Reading/ELA Proficiency86.8% (2025 ISASP)
Math vs. State Avg+18.8 pts
Reading vs. State Avg+9.7 pts
Overall Proficiency86% (2025 ISASP, Math+ELA)
Expected (poverty-adj.)76% (model expectation from 2025 ISASP)
vs. Expected+9.6 pts
Adjusted Percentile89th
College Readiness9.8Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate95%+
IB ProgramNo
Resources & Environment5.6Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio14.8:1
District spending per student$11,979
Chronic Absenteeism17%

Students at Clear Lake High School score 86% proficient, which is above what's typical for similar communities (expected: 76%).

How we calculate scores →

2025 ISASP proficiency

Most recent published year. School vs. IA average.

Math Proficiency85%(2025 ISASP)
School
State
71%(2025 ISASP)
ELA Proficiency87%(2025 ISASP)
School
State
74%(2025 ISASP)

Trend

↑ Recovering

Proficiency declined earlier in the 17-year record (2009–2025), then recovered 16 points since 2020, reaching 86% in 2025.

Show all 15 years
2009
Math
82%
ELA
77%
2010
Math
77%
ELA
77%
2011
Math
72%
ELA
67%
2012
Math
77%
ELA
72%
2013
Math
87%
ELA
77%
2014
Math
72%
ELA
72%
2015
Math
82%
ELA
82%
2016
Math
77%
ELA
77%
2017
Math
92%
ELA
82%
2018
Math
72%
ELA
87%
2019
Math
72%
ELA
87%
2020*
Math
61%
ELA
80%
2021*
Math
61%
ELA
80%
2022
Math
66%
ELA
84%
2025
Math
85%
ELA
87%

Multi-year averages used by the rating model: math 78% (multi-year average, 2009-2025) · reading/ELA 81% (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 39 test records from IA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

33.6%

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 Clear Lake 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 37Car-Dependent
  • Bike 39Somewhat Bikeable
  • City Safety: High1,884/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Clear Lake), 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

$72,932

Median home value

$253,900

Median rent

$769/mo

College educated

32.3%

Homeownership

76.3%

Poverty rate

6.3%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 50428; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Athletics17sports offered
9 boys'·8 girls'·31 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

Compare nearby

Nearby same-level schools

0 from verified nearby records

No verified same-level alternatives

The available nearby set has no same-level school with a verified grade span.

Clear Lake Comm School District

Schools in district
3
Rank in district
#1 of 3
District spending per student
$11,979NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
7.0%Census SAIPE · 2024

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

About Clear Lake High School

Clear Lake High School is a public high school in Clear Lake, IA, part of Clear Lake Comm School District, serving approximately 458 students in grades 9th-12th with a 14.8:1 student-teacher ratio. It holds a MySchoolScout rating of 8.8 out of 10 and ranks #52 of 1,280 schools in IA. State assessment records show 78% math proficiency (multi-year average, 2009-2025) and 81% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Clear Lake High School

What grades does Clear Lake High School serve?

Clear Lake High School serves students in grades 9th through 12th.

How many students attend Clear Lake High School?

Clear Lake High School has an enrollment of approximately 458 students.

What is the student-teacher ratio at Clear Lake High School?

The student-teacher ratio at Clear Lake High School is 14.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Clear Lake High School rank in IA?

Clear Lake High School ranks #52 of 1,280 schools in IA.

What is Clear Lake High School's MySchoolScout rating?

Clear Lake High School has a current MySchoolScout rating of 8.8 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 Clear Lake High School?

Based on loaded state assessment records, Clear Lake High School has 78% math proficiency (multi-year average, 2009-2025) and 81% reading/ELA proficiency (multi-year average, 2009-2025).

Is Clear Lake High School a charter school?

No, Clear Lake High School is not a charter school. It is a traditional public school operated by the local school district.

Is Clear Lake High School a Title I school?

No, Clear Lake High School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Clear Lake High School?

33.6% of students at Clear Lake 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
9th – 12th
Enrollment
458
Student-Teacher Ratio
14.8:1
Teachers (FTE)
31
Type
regular
Setting
Remote Town
County
Cerro Gordo County
Chronic Absenteeism (SY 2022-23)
17.0%
4-Year Graduation
95%+
Area population (ZIP 50428)
9,093
Area average commute
19.4 min
Area median age
50.5
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 50428; 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

Related reading

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