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Winnebago High School

Public Grades 9-12
184th
SchoolDigger Rank ?
of 620 Illinois High Schools
Better than 70% of Illinois high schools
Summary

Winnebago High School serves 422 students in grades 9–12 in Winnebago, Illinois, and its results are generally above state levels, though they vary by grade and measure. Its clearest academic strength is ninth-grade math: 55% of students were proficient in 2025–2026, compared with 42% statewide, the highest result among nearby schools with scores. The most important caution is graduation: 83% of students graduated, 7 percentage points below the state’s 90% rate.

Compared with nearby schools, Winnebago is competitive across subjects but does not lead in most of them. It exceeded the state in all three 11th-grade ACT subjects, though ELA was just 1 point higher; it also beat nearby-school averages by 11 points in math, 7 in science and 5 in ELA. Nearby peers Byron and Pecatonica were ahead in most grade-and-subject comparisons, while Winnebago led nearby schools in ninth-grade math. Its 13% chronic absenteeism rate was well below the state’s 24%, and below Byron’s 18%, but above Pecatonica’s 10%. The supplied test-score figures for Winnebago CUSD 323 are identical to the school’s, so they do not provide an independent comparison.

Results have improved sharply in ninth grade but are mixed elsewhere: ninth-grade ELA rose 5 points and math rose 16 points from 2024–2025 to 2025–2026, while 11th-grade ACT ELA fell 10 points. SchoolDigger ranks Winnebago 184th of 620 Illinois high schools, at the 70th percentile with 4 stars; its percentile has slipped from 74 to 70 over three years, though it remains above Auburn’s 32 and Rockford East’s 7. The student-teacher ratio is 12.1, and 28% of students were free/reduced lunch eligible in 2024–2025. SchoolDigger’s measure of how well the school serves White Students placed them at the 49th percentile in 2025–2026, compared with 70 overall. Its measure for Special Education Students rose from the 22nd percentile in 2023–2024 to the 61st in 2024–2025.

422
Students ?
12.1
Student/teacher ratio ?
$20,414
Per pupil spending ?
27.7%
Free/reduced lunch eligible (2024-25) ?
97.6%
Measles protection (all grades) (2025-26)
 200 E McNair Rd
       Winnebago, IL  61088-9074

(815) 335-2336

District: Winnebago CUSD 323


Feeder schools for Winnebago High School:

Elementary:    Dorothy Simon Elementary School
    Jean McNair Elementary School
Middle:    Winnebago Middle School
Racial breakdown:

White:
79.6%
Hispanic:
10.7%
Two or more races:
5.2%
more
 See top rated Illinois high schools

 Compare Winnebago High School to nearby high schools!
At a glance
▼ Ranking trend: Declining — 84th percentile in 2016 → 70th in 2026
Strengths
✓Above the Illinois median (70th percentile)
Worth a look
!Graduation rate below the Illinois average (83% vs 90%)
!Ranking has slipped — down 14 percentile points since 2016
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school51%
District avg51%
Illinois avg47%
184th of 620
Illinois public high schools ?
Top 30%▼ down 14 pts since 2016
From top 16% (2016) to top 30% (2026)
See the entire ranking list of Illinois High Schools →
★★★★★
SchoolDigger rating ?
367th of 738Winnebago CUSD 323 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
202663.8184 of 62070.3%★★★★☆
202567.1193 of 69872.3%★★★★☆
202466.6181 of 69774.0%★★★★☆
202377.4129 of 69981.5%★★★★☆
202266.7199 of 69971.5%★★★★☆
202172.5150 of 68878.2%★★★★☆
201959.6249 of 70164.5%★★★☆☆
201880.8105 of 64783.8%★★★★☆
201764.8192 of 64270.1%★★★★☆
201671.9101 of 64384.3%★★★★☆
201542.5332 of 61445.9%★★☆☆☆
201480.9125 of 67081.3%★★★★☆
201385.582 of 67087.8%★★★★☆
201270.5190 of 66571.4%★★★★☆
201171.2203 of 65569.0%★★★☆☆
201080.8101 of 64384.3%★★★★☆
200979.6109 of 63282.8%★★★★☆
200872.1164 of 62473.7%★★★★☆
200767.9199 of 61267.5%★★★☆☆
200658.3272 of 59654.4%★★★☆☆
200554.3310 of 59047.5%★★☆☆☆
200469.8176 of 59270.3%★★★★☆
200349.9342 of 58641.6%★★☆☆☆

African American

YearAvg scoreStatewide rankIllinois percentileRating
201971.852 of 29982.6%★★★★☆

Disabled

YearAvg scoreStatewide rankIllinois percentileRating
202533.9312 of 49136.5%★★☆☆☆
202427.0261 of 42939.2%★★☆☆☆
202373.358 of 42886.4%★★★★☆

Female

YearAvg scoreStatewide rankIllinois percentileRating
202659.6201 of 54563.1%★★★☆☆
202565.0207 of 68569.8%★★★★☆
202461.6213 of 66467.9%★★★☆☆
202380.8103 of 65684.3%★★★★☆
202260.1245 of 65862.8%★★★☆☆
202179.3116 of 63981.8%★★★★☆
201971.6156 of 66576.5%★★★★☆
201871.8157 of 62074.7%★★★★☆

Hispanic

YearAvg scoreStatewide rankIllinois percentileRating
202566.594 of 36674.3%★★★★☆
202430.5225 of 33633.0%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankIllinois percentileRating
202673.197 of 47879.7%★★★★☆
202556.5251 of 67262.6%★★★☆☆
202465.5163 of 63974.5%★★★★☆
202385.052 of 64491.9%★★★★★
202272.1114 of 62681.8%★★★★☆
202165.5136 of 61177.7%★★★★☆
201883.741 of 58593.0%★★★★★

Male

YearAvg scoreStatewide rankIllinois percentileRating
202655.0211 of 52159.5%★★★☆☆
202565.2193 of 68571.8%★★★★☆
202468.0173 of 66874.1%★★★★☆
202366.2178 of 66873.4%★★★★☆
202268.1169 of 66474.5%★★★★☆
202160.6220 of 65366.3%★★★☆☆
201942.5382 of 67543.4%★★☆☆☆
201882.681 of 61986.9%★★★★☆

Special Education

YearAvg scoreStatewide rankIllinois percentileRating
202546.0205 of 52761.1%★★★☆☆
202420.8377 of 48221.8%★☆☆☆☆
202345.1190 of 47660.1%★★★☆☆
202129.3270 of 45340.4%★★☆☆☆

White

YearAvg scoreStatewide rankIllinois percentileRating
202643.3261 of 51549.3%★★☆☆☆
202547.6258 of 56454.3%★★★☆☆
202451.2220 of 55460.3%★★★☆☆
202370.2139 of 55775.0%★★★★☆
202252.6239 of 56057.3%★★★☆☆
202164.7154 of 55372.2%★★★★☆
201947.5246 of 55255.4%★★★☆☆
201875.5116 of 54878.8%★★★★☆
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)
African American (2019)83rd percentile+18 vs school
Low Socio Economic Status (2026)80th percentile+9 vs school
Hispanic (2025)74th percentile~ school
Female (2026)63rd percentile-7 vs school
Special Education (2025)61st percentile-11 vs school
Male (2026)60th percentile-11 vs school
White (2026)49th percentile-21 vs school
Disabled (2025)36th percentile-36 vs school
By subject vs Illinois (2025-2026) ?
English Language Arts50%~ state avg
Science50%+3 vs state
Mathematics46%+6 vs state

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What people are saying
by a student
Thursday, April 9, 2009

Open Quote I went to school there and it was the most amazing schools and has a great education system. I also went to another school around Winnebago and it did not even come close to Winnebago. Close Quote





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Frequently Asked Questions about Winnebago High School

Students at Winnebago High School are 80% White, 11% Hispanic, 5% Two or more races, 3% African American.

Winnebago High School is fed by the following schools:

Elementary : Dorothy Simon Elementary School
Elementary : Jean McNair Elementary School
Middle : Winnebago Middle School

In the 2024-25 school year, 422 students attended Winnebago High School.

Winnebago High School ranks 184th of 620 Illinois high schools. SchoolDigger rates this school 4 stars out of 5.

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Latest Illinois data All new data »
2025–26 school spending dataNewOct 30, 2026
2025–26 attendance data, dropout rates & graduation ratesNewOct 30, 2026
2025–26 ACT, IAR, ISA & PreACT Secure test scoresNewOct 30, 2026
2013–14 through 2025–26 immunization rates (updated)Oct 19, 2026


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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