Mercer County High School
Aledo, IL · Mercer County School District 404 · Grades 9 - 12
350th of 601 Illinois high schools statewide · better than 42%▼ Declining
Mercer County High School ranking
SchoolRow ranks Mercer County High School 350th of 601 Illinois high schools for 2024–25, based on Illinois Report Card 2024–25 English and Math results — better than 42% of high schools statewide. Its statewide percentile went from 70th in 2019 to 42th in 2025 — declining.
Mercer County High School test scores
Percent meeting or exceeding the state standard, Illinois Report Card 2024–25
Mercer County High School students
Racial and ethnic breakdown of 401 students (2023–24, NCES) — and how it has shifted since 2013
| Group | Trend | 2013 | 2023 | Change |
|---|---|---|---|---|
| White | 95.2% | 92.5% | ▼ 2.7 pts | |
| Hispanic | 1.8% | 3.7% | ▲ 1.9 pts | |
| Two or more races | 1.5% | 3.0% | ▲ 1.5 pts | |
| Black | 1.3% | 0.5% | ▼ 0.8 pts |
Homes near Mercer County High School
Typical home value $169K in zip 61231 as of 2026-05 · trend since 2012
Data Provided by Zillow Group
High schools near Mercer County High School
Closest same-level schools, with 2024–25 state rank
- 6Rockridge High SchoolRockridge CUSD 300 · 13.6 mi away285th of 601
ELA 47% · Math 40% - 6Sherrard High SchoolSherrard CUSD 200 · 15.6 mi away273rd of 601
ELA 55% · Math 35% - 3Monmouth-Roseville High SchMonmouth-Roseville CUSD 238 · 19.9 mi away440th of 601
ELA 34% · Math 31% - 7United Jr./Sr. High SchoolUnited CUSD 304 · 21.1 mi away230th of 601
ELA 68% · Math 28% - 2Rock Island High SchoolRock Island SD 41 · 22.4 mi away527th of 601
ELA 28% · Math 17% - 5AlWood Middle/High SchoolAlWood CUSD 225 · 22.7 mi away325th of 601
ELA 57% · Math 25% - 9Orion High SchoolOrion CUSD 223 · 22.9 mi away104th of 601
ELA 66% · Math 56% - 4Galesburg Senior High SchoolGalesburg CUSD 205 · 24.4 mi away399th of 601
ELA 46% · Math 26%
Frequently asked questions
What school district is Mercer County High School in?
Mercer County High School is part of the Mercer County School District 404 district in Aledo, Illinois.
Is Mercer County High School a good school?
SchoolRow ranks Mercer County High School 350th of 601 Illinois high schools (better than 42% statewide) based on 2024–25 test results (Illinois Report Card 2024–25).
What is the racial makeup of Mercer County High School?
White 93%, Hispanic 4%, Two or more races 3% (401 students, 2023–24).
How much do homes near Mercer County High School cost?
The typical home value in zip code 61231 is $169K as of 2026-05 (Zillow ZHVI).
Sources: state education department data (Illinois Report Card 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.