Below Average
#2962 of 3,813 schools in IL
Mercer County High School
High School · Mercer County School District 404 · Aledo, IL
A Mercer County School District 404 high school where students score 12 points below what's typical for similar communities.
1500 S College Ave, Aledo, IL 61231
- Math 17% proficient (2021)
- Reading 22% proficient (2022)
- 5/5 advanced STEM subjects
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Mercer County High School score 20% proficient, which is below what's typical for similar communities (expected: 31%).
2022 EdFacts proficiency
Most recent published year. School vs. IL average.
Trend
↓ DecliningProficiency has fallen 15 points since 2019, to 22% in 2022, across a 14-year record (2009–2022).
Show all 14 years
Multi-year averages used by the rating model: math 35% (multi-year average, 2009-2021) · reading/ELA 41% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 27 test records from IL state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
40.1%
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 rateThe neighborhood
Where Mercer County 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 38Car-Dependent
- Bike 25Somewhat Bikeable
- City Safety: Average535/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Aledo), 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
$66,389
Median home value
$141,200
Median rent
$772/mo
College educated
22.1%
Homeownership
70.2%
Poverty rate
10%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 61231; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
1 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| L' Abris AcademyPrivate · tuition | Not rated | 1–12 | 0.9 mi | 25 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Mercer County School District 404
- Schools in district
- 5
- Rank in district
- #2 of 4
- District spending per student
- $15,828NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 12.9%Census SAIPE · 2024
Mercer County High School is listed in Mercer County School District 404; a district label does not verify attendance for an address.
About Mercer County High School
Mercer County High School is a public high school in Aledo, IL, part of Mercer County School District 404, serving approximately 401 students in grades 9th-12th with a 13.4:1 student-teacher ratio. It holds a MySchoolScout rating of 4.9 out of 10 and ranks #2,962 of 3,813 schools in IL. State assessment records show 35% math proficiency (multi-year average, 2009-2021) and 41% reading/ELA proficiency (multi-year average, 2009-2022).
Frequently asked questions
Common questions about Mercer County High School
What grades does Mercer County High School serve?
Mercer County High School serves students in grades 9th through 12th.
How many students attend Mercer County High School?
Mercer County High School has an enrollment of approximately 401 students.
What is the student-teacher ratio at Mercer County High School?
The student-teacher ratio at Mercer County High School is 13.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mercer County High School rank in IL?
Mercer County High School ranks #2,962 of 3,813 schools in IL.
What is Mercer County High School's MySchoolScout rating?
Mercer County High School has a current MySchoolScout rating of 4.9 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 Mercer County High School?
Based on loaded state assessment records, Mercer County High School has 35% math proficiency (multi-year average, 2009-2021) and 41% reading/ELA proficiency (multi-year average, 2009-2022).
Is Mercer County High School a charter school?
No, Mercer County High School is not a charter school. It is a traditional public school operated by the local school district.
Is Mercer County High School a Title I school?
No, Mercer County High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mercer County High School?
40.1% of students at Mercer County 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
- 401
- Student-Teacher Ratio
- 13.4:1
- Teachers (FTE)
- 30
- Type
- regular
- Setting
- Distant Rural
- County
- Mercer County
- Chronic Absenteeism (SY 2022-23)
- 43.1%
- Phone
- (309) 582-2223
- Area population (ZIP 61231)
- 4,958
- Area average commute
- 21.4 min
- Area median age
- 42.6
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 · 2021 EdFacts · Low confidence
- Older source: 2021 EdFacts. Use as historical context.
- 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 · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- 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)
- 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 61231; 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, 2009-2021, multi-year average, 2009-2022; directory SY 2023–24
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