Skip to main content

Average

#583 of 1,280 schools in IA

Top 46% in state

Central Lyon Secondary School

High School · Central Lyon Comm School District · Rock Rapids, IA

A Central Lyon Comm School District high school where students score 5 points above what's typical for similar communities.

1010 S Greene St, Rock Rapids, IA 51246

  • Math 83% vs IA 70% (2025)
  • Reading 90% vs IA 76% (2025)
  • 90%+ 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress7.0Very Good25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-0.54 pts/yr
Data Period2009–2025
TrendStable
Academics8.9Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency82.8% (2025 ISASP)
Reading/ELA Proficiency90.1% (2025 ISASP)
Math vs. State Avg+10.3 pts
Reading vs. State Avg+14.3 pts
Overall Proficiency86% (2025 ISASP, Math+ELA)
Expected (poverty-adj.)82% (model expectation from 2025 ISASP)
vs. Expected+4.8 pts
Adjusted Percentile83th
College Readiness5.2Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate90%+
AP Participation4.1%
IB ProgramNo
Resources & Environment5.8Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio14.6:1
District spending per student$12,492
Chronic Absenteeism19.5%

Students at Central Lyon Secondary School score 86% proficient, which is above what's typical for similar communities (expected: 82%).

How we calculate scores →

2025 ISASP proficiency

Most recent published year. School vs. IA average.

Math Proficiency83%(2025 ISASP)
School
State
70%(2025 ISASP)
ELA Proficiency90%(2025 ISASP)
School
State
76%(2025 ISASP)

Trend

↑ Recovering

Proficiency declined earlier in the 17-year record (2009–2025), then recovered 7 points since 2020, reaching 87% in 2025.

Show all 15 years
2009
Math
85%
ELA
95%
2010
Math
85%
ELA
95%
2011
Math
85%
ELA
85%
2012
Math
90%
ELA
90%
2013
Math
95%
ELA
95%
2014
Math
95%
ELA
95%
2015
Math
95%
ELA
95%
2016
Math
85%
ELA
75%
2017
Math
95%
ELA
85%
2018
Math
85%
ELA
85%
2019
Math
85%
ELA
85%
2020*
Math
77%
ELA
82%
2021*
Math
77%
ELA
82%
2022
Math
80%
ELA
85%
2025
Math
83%
ELA
90%

Multi-year averages used by the rating model: math 86% (multi-year average, 2009-2025) · reading/ELA 88% (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 40 test records from IA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

23.9%

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 Central Lyon Secondary 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 27Car-Dependent
  • Bike 31Somewhat Bikeable
  • County Safety: Low157/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details

Source period: 2024. A newer release may be available.

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

Median income

$69,320

Median home value

$232,900

Median rent

$773/mo

College educated

21.4%

Homeownership

80.1%

Poverty rate

4.2%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 51246; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs2AP courses offered
4.1% participation·State avg: 1.7 AP courses·CRDC via Urban Institute · SY 2021–22
Athletics13sports offered
7 boys'·6 girls'·32 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

1 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
Alpha Omega AcademyPrivate · tuition2.4K–121.1 mi3,412Compare →

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Central Lyon Comm School District

Schools in district
2
Rank in district
#2 of 2
District spending per student
$12,492NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
7.3%Census SAIPE · 2024

Central Lyon Secondary School is listed in Central Lyon Comm School District; a district label does not verify attendance for an address.

About Central Lyon Secondary School

Central Lyon Secondary School is a public high school in Rock Rapids, IA, part of Central Lyon Comm School District, serving approximately 364 students in grades 7th-12th with a 14.6:1 student-teacher ratio. It holds a MySchoolScout rating of 6.7 out of 10 and ranks #583 of 1,280 schools in IA. State assessment records show 86% math proficiency (multi-year average, 2009-2025) and 88% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Central Lyon Secondary School

What grades does Central Lyon Secondary School serve?

Central Lyon Secondary School serves students in grades 7th through 12th.

How many students attend Central Lyon Secondary School?

Central Lyon Secondary School has an enrollment of approximately 364 students.

What is the student-teacher ratio at Central Lyon Secondary School?

The student-teacher ratio at Central Lyon Secondary School is 14.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Central Lyon Secondary School rank in IA?

Central Lyon Secondary School ranks #583 of 1,280 schools in IA.

What is Central Lyon Secondary School's MySchoolScout rating?

Central Lyon Secondary School has a current MySchoolScout rating of 6.7 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 Central Lyon Secondary School?

Based on loaded state assessment records, Central Lyon Secondary School has 86% math proficiency (multi-year average, 2009-2025) and 88% reading/ELA proficiency (multi-year average, 2009-2025).

Is Central Lyon Secondary School a charter school?

No, Central Lyon Secondary School is not a charter school. It is a traditional public school operated by the local school district.

Is Central Lyon Secondary School a Title I school?

No, Central Lyon Secondary School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Central Lyon Secondary School?

23.9% of students at Central Lyon Secondary 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
7th – 12th
Enrollment
364
Student-Teacher Ratio
14.6:1
Teachers (FTE)
25
Type
regular
Setting
Distant Rural
County
Lyon County
Chronic Absenteeism (SY 2022-23)
19.5%
4-Year Graduation
90%+
Area population (ZIP 51246)
4,075
Area average commute
11.8 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 51246; 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

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.