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Excellent

#253 of 2,221 schools in MO

Top 11% in state

Silex High

High School · Silex R-i · Silex, MO

A Silex R-i high school where students score 8 points above what's typical for similar communities.

PO BOX 46, Silex, MO 63377

  • Math 80% vs MO 48% (2025)
  • Reading 39% vs MO 46% (2025)
  • 90%+ 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress10.0Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data16
Annual Change+21.5 pts/yr
Data Period2009–2025
TrendImproving
Academics8.7Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency79.9% (2025 MAP)
Reading/ELA Proficiency39.4% (2025 MAP)
Math vs. State Avg+31.5 pts
Reading vs. State Avg-6.4 pts
Overall Proficiency60% (2025 MAP, Math+ELA)
Expected (poverty-adj.)52% (model expectation from 2025 MAP)
vs. Expected+7.7 pts
Adjusted Percentile81th
College Readiness9.3Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate90%+
IB ProgramNo
Resources & Environment3.9Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio14.3:1
District spending per student$10,680
Chronic Absenteeism17.8%

Students at Silex High score 60% proficient, which is above what's typical for similar communities (expected: 52%).

How we calculate scores →

2025 MAP proficiency

Most recent published year. School vs. MO average.

Math Proficiency80%(2025 MAP)
School
State
48%(2025 MAP)
ELA Proficiency39%(2025 MAP)
School
State
46%(2025 MAP)

Trend

↑ Improving

Proficiency has improved 8 points since 2021, reaching 60% in 2025, across a 17-year record (2009–2025).

Show all 16 years
2009
Math
42%
ELA
62%
2010
Math
52%
ELA
62%
2011
Math
62%
ELA
62%
2012
Math
47%
ELA
62%
2013
Math
52%
ELA
62%
2014
Math
42%
ELA
67%
2015
Math
52%
ELA
67%
2016
Math
27%
ELA
62%
2017
Math
42%
ELA
62%
2018
Math
42%
ELA
57%
2019
Math
42%
ELA
57%
2020*
Math
57%
ELA
47%
2021*
Math
57%
ELA
47%
2022
Math
42%
ELA
47%
2024
Math
36%
2025
Math
80%
ELA
39%

Multi-year averages used by the rating model: math 48% (multi-year average, 2009-2025) · reading/ELA 58% (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 31 test records from MO state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

29.1%

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 Silex High sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the St. Louis map →

Getting around & local context

  • Walk 16Car-Dependent
  • Bike 11Somewhat Bikeable
  • County Safety: Average471/100K

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

$85,987

Median home value

$218,400

Median rent

$892/mo

College educated

20.3%

Homeownership

91.2%

Poverty rate

14.2%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 63377; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Athletics11sports offered
5 boys'·6 girls'·15 teams (incl. JV)·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses3of 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.

Silex R-i

Schools in district
2
Rank in district
#1 of 2
District spending per student
$10,680NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
8.7%Census SAIPE · 2024

Silex High is listed in SILEX R-I; a district label does not verify attendance for an address.

About Silex High

Silex High is a public high school in Silex, MO, part of Silex R-i, serving approximately 258 students in grades 6th-12th with a 14.3:1 student-teacher ratio. It holds a MySchoolScout rating of 8.2 out of 10 and ranks #253 of 2,221 schools in MO. State assessment records show 48% math proficiency (multi-year average, 2009-2025) and 58% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Silex High

What grades does Silex High serve?

Silex High serves students in grades 6th through 12th.

How many students attend Silex High?

Silex High has an enrollment of approximately 258 students.

What is the student-teacher ratio at Silex High?

The student-teacher ratio at Silex High is 14.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Silex High rank in MO?

Silex High ranks #253 of 2,221 schools in MO.

What is Silex High's MySchoolScout rating?

Silex High has a current MySchoolScout rating of 8.2 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 Silex High?

Based on loaded state assessment records, Silex High has 48% math proficiency (multi-year average, 2009-2025) and 58% reading/ELA proficiency (multi-year average, 2009-2025).

Is Silex High a charter school?

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

Is Silex High a Title I school?

No, Silex High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Silex High?

29.1% of students at Silex High 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
6th – 12th
Enrollment
258
Student-Teacher Ratio
14.3:1
Teachers (FTE)
18
Type
regular
Setting
Distant Rural
County
Lincoln County
Chronic Absenteeism (SY 2022-23)
17.8%
4-Year Graduation
90%+
Area population (ZIP 63377)
3,548
Area average commute
32.7 min
Area median age
42.4
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 MAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 MAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments / 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 63377; 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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