C+
Mercer County High School
PublicHighGrades 9–12
1500 S College Ave, Aledo, IL 61231 · (309) 582-2223 · Part of Mercer County School District 404
Students
411
Students per teacher
13:1
Free or reduced lunch
42%
Setting
Rural
Grades
9–12
What stands out about Mercer County High School
- Math proficiency 9 pts below the state
- Reading / language arts 9 pts below the state
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency17%
State average 25.9%
Reading / language arts22%
State average 30.7%
Location
Directions ↗
1500 S College Ave, Aledo
Students
Enrollment by grade
Grade 9106
Grade 10103
Grade 1197
Grade 12105
Enrollment over time
390’20
393’21
404’22
401’23
411’24
Up 5.4% since 2020.
Who goes here
White 93%Two or more races 3%Hispanic 2%Black <1%Asian <1%American Indian/Alaska Native <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Mercer County High School.
Other schools in Mercer County School District 404
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.