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Southwestern High School

Public Grades 9-12
362nd
SchoolDigger Rank ?
of 698 Illinois High Schools
Better than 48% of Illinois high schools
Summary

Southwestern High School is a public high school located in Piasa, Illinois, serving grades 9-12 with a total enrollment of 376 students. The school is part of the Southwestern CUSD 9 district, which is ranked 385 out of 811 districts in Illinois and has a 3-star rating from SchoolDigger.

Southwestern High School has seen a fluctuating statewide ranking over the past 10 years, ranging from 65th out of 643 Illinois high schools in 2015-2016 (5-star rating) to 362nd out of 698 in 2024-2025 (2-star rating). The school's performance across different student subgroups has been uneven, with female students generally outperforming male students, and White students and special education students struggling compared to their peers. Academically, Southwestern High School's proficiency rates in English Language Arts, Mathematics, and Science are below the state averages, ranging from around 25-45%.

Compared to nearby schools like Greenfield High School, Civic Memorial High School, and Alton High School, Southwestern High School's performance is generally on par with or slightly below these schools, which have similar demographic and socioeconomic profiles. The school has also experienced high rates of chronic absenteeism, ranging from 10.7% to 26.3% in recent years, which may be impacting its overall academic performance.

370
Students ?
11.7
Student/teacher ratio ?
$15,000
Per pupil spending ?
42.2%
Free/discounted lunch ?
 8226 Route 111
       Piasa, IL  62079-2051

(618) 372-3813

District: Southwestern CUSD 9


Feeder schools for Southwestern High School:

Elementary:    Brighton North Primary School
    Shipman Elementary School
Middle:    Medora Intermediate School
    Southwestern Middle School
Racial breakdown:

White:
94.3%
Hispanic:
2.2%
African American:
1.9%
more
 See top rated Illinois high schools

 Compare Southwestern High School to nearby high schools!
At a glance
Ranking trend: Holding steady — 49th percentile in 2015 → 48th in 2025
Strengths
93% graduate in 4 years — above the Illinois average (89%)
Small classes — about 12 students per teacher
Worth a look
!Test scores below the Illinois average (40% vs 48% meeting standards)
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2024-2025) ?
This school40%
District avg40%
Illinois avg48%
362nd of 698
Illinois public high schools ?
Bottom 48%▼ down 1 pts since 2015
See the entire ranking list of Illinois High Schools →
SchoolDigger rating ?
385th of 811Southwestern CUSD 9 among Illinois districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankIllinois percentileRating
202548.6362 of 69848.1%★★☆☆☆
202451.9289 of 69758.5%★★★☆☆
202351.8311 of 69955.5%★★★☆☆
202262.8229 of 69967.2%★★★☆☆
202153.0278 of 68859.6%★★★☆☆
201959.3250 of 70164.3%★★★☆☆
201858.5248 of 64761.7%★★★☆☆
201762.0217 of 64266.2%★★★☆☆
201678.765 of 64389.9%★★★★★
201543.9312 of 61449.2%★★☆☆☆
201449.5374 of 67044.2%★★☆☆☆
201352.9357 of 67046.7%★★☆☆☆
201265.0233 of 66565.0%★★★☆☆
201150.1378 of 65542.3%★★☆☆☆
201055.6334 of 64348.1%★★☆☆☆
200952.6341 of 63246.0%★★☆☆☆
200872.6158 of 62474.7%★★★★☆
200751.1349 of 61243.0%★★☆☆☆
200658.7270 of 59654.7%★★★☆☆
200547.0362 of 59038.6%★★☆☆☆
200440.7420 of 59229.1%★☆☆☆☆
200350.3338 of 58642.3%★★☆☆☆

Disabled

YearAvg scoreStatewide rankIllinois percentileRating
202533.6315 of 49135.8%★★☆☆☆
202427.0261 of 42939.2%★★☆☆☆

Female

YearAvg scoreStatewide rankIllinois percentileRating
202556.4281 of 68559.0%★★★☆☆
202445.6325 of 66451.1%★★★☆☆
202343.9371 of 65643.4%★★☆☆☆
202265.8202 of 65869.3%★★★☆☆
202155.8247 of 63961.3%★★★☆☆
201962.4224 of 66566.3%★★★☆☆
201858.3237 of 62061.8%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankIllinois percentileRating
202547.8348 of 67248.2%★★☆☆☆
202463.6172 of 63973.1%★★★★☆
202342.6368 of 64442.9%★★☆☆☆
202272.8108 of 62682.7%★★★★☆
202136.2393 of 61135.7%★★☆☆☆
201947.7310 of 63951.5%★★★☆☆
201866.3144 of 58575.4%★★★★☆

Male

YearAvg scoreStatewide rankIllinois percentileRating
202536.6452 of 68534.0%★★☆☆☆
202455.6244 of 66863.5%★★★☆☆
202356.9251 of 66862.4%★★★☆☆
202257.6251 of 66462.2%★★★☆☆
202147.1310 of 65352.5%★★★☆☆
201948.9323 of 67552.1%★★★☆☆
201854.1266 of 61957.0%★★★☆☆

Special Education

YearAvg scoreStatewide rankIllinois percentileRating
202534.8289 of 52745.2%★★☆☆☆
202420.8377 of 48221.8%★☆☆☆☆
202191.720 of 45395.6%★★★★★
201967.373 of 47384.6%★★★★☆
201839.8179 of 37452.1%★★★☆☆

White

YearAvg scoreStatewide rankIllinois percentileRating
202528.4420 of 56425.5%★☆☆☆☆
202433.3345 of 55437.7%★★☆☆☆
202332.4375 of 55732.7%★★☆☆☆
202244.5305 of 56045.5%★★☆☆☆
202138.1302 of 55345.4%★★☆☆☆
201942.1279 of 55249.5%★★☆☆☆
201843.6285 of 54848.0%★★☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2025)59th percentile+11 vs school
Low Socio Economic Status (2025)48th percentile~ school
Special Education (2025)45th percentile-3 vs school
Disabled (2025)36th percentile-12 vs school
Male (2025)34th percentile-14 vs school
White (2025)26th percentile-23 vs school
By subject vs Illinois (2024-2025) ?
English Language Arts45%-7 vs state
Science43%-6 vs state
Mathematics30%-10 vs state

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Latest Illinois data All new data »
2024–25 school spending dataOct 30, 2025
2024–25 attendance data, dropout rates & graduation ratesOct 30, 2025
2024–25 ACT, IAR, ISA & PreACT Secure test scoresOct 30, 2025
2023–24 school spending dataOct 30, 2024


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the Illinois Department of Public Health and the Illinois State Board of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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