Mercer County High School
Aledo, IL · Mercer County School District 404
Regular public school · Grades 9 - 12 · Rural, distant
350th of 601 Illinois high schools statewide · better than 42%▼ Declining
1500 S College Ave, Aledo, IL 61231
(309)582-2223NCES ID 170139500018Directory 2023–24
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.
Percent meeting or exceeding the state standard, Illinois Report Card 2024–25
Percent meeting or exceeding the state standard, by student race and ethnicity. Only groups IL reports for this school appear — small groups are suppressed at the source to protect student privacy, so a missing line means too few testers, not zero. Tap a group to compare it with the IL average for that same group.
Racial and ethnic breakdown of 401 students (2023–24, NCES) — history since 2009, with comparable seven-category changes from 2010
| Group | Trend | 2010 | 2023 | Change |
|---|---|---|---|---|
| White | 96.8% | 92.5% | ▼ 4.3 pts | |
| Hispanic | 0.8% | 3.7% | ▲ 2.9 pts | |
| Two or more races | 1.6% | 3.0% | ▲ 1.4 pts | |
| Black | 0.3% | 0.5% | ▲ 0.2 pts | |
| Asian | 0.5% | 0.0% | ▼ 0.5 pts |
NCES history for this school begins in 2009. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.
Typical home value $169K in zip 61231 as of 2026-05 · trend since 2012
Data Provided by Zillow Group
Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Mercer County High School
- #285Rockridge High SchoolRockridge CUSD 300 · 13.6 mi away285th of 601
ELA 47% ▲1 · Math 40% ▲7Compare - #273Sherrard High SchoolSherrard CUSD 200 · 15.6 mi away273rd of 601
ELA 55% ▲9 · Math 35% ▲2Compare - #440Monmouth-Roseville High SchMonmouth-Roseville CUSD 238 · 19.9 mi away440th of 601
ELA 34% ▼12 · Math 31% ▼2Compare - #230United Jr./Sr. High SchoolUnited CUSD 304 · 21.1 mi away230th of 601
ELA 68% ▲22 · Math 28% ▼5Compare - #527Rock Island High SchoolRock Island SD 41 · 22.4 mi away527th of 601
ELA 28% ▼18 · Math 17% ▼16Compare - #325AlWood Middle/High SchoolAlWood CUSD 225 · 22.7 mi away325th of 601
ELA 57% ▲11 · Math 25% ▼8Compare - #104Orion High SchoolOrion CUSD 223 · 22.9 mi away104th of 601
ELA 66% ▲20 · Math 56% ▲23Compare - #399Galesburg Senior High SchoolGalesburg CUSD 205 · 24.4 mi away399th of 601
ELA 46% = · Math 26% ▼7Compare
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.