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If you could change one rule at Oswego High School, what would it be?
Community prompt from u/allk12. Replies below.
Enrollment
2,870
High
DISTRICT 2,814 · STATE 834
SCHOOL COMMUNITY·CUSD 308·NCES 173027003132
Oswego High School
4250 State Route 71, Oswego, IL 60543 · (630) 636-2000 · Kendall County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL2,870 STUDENTS
B-
allk12 Grade
Scored higher than 47% of Illinois public high schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- CBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public high schools
Student : Teacher
15.8:1
182 FTE teachers
DISTRICT 15.7:1 · STATE 13.8:1
Free / Reduced Lunch
30%
874 students
DISTRICT 31% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 694 | 24% |
| Grade 10 | 710 | 25% |
| Grade 11 | 709 | 25% |
| Grade 12 | 757 | 26% |
Student demographics
65%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 68% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
41.3%
composite math + reading, all grades
Predicted
53.9%
based on IL schools with similar FRL share
Beats by
-12.6pp
below demographic expectation
What this means: About 41% of students here test proficient in math and reading, compared with the roughly 54% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Oswego High School
Oswego High School's state test result (41.3% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Oswego High School this school | 2,870 | 30.5% | 41.3% |
| Plainfield South High School Plainfield | 2,323 | 34.2% | 43.0% |
| Plainfield High School Plainfield | 1,800 | 34.7% | 40.6% |
| Yorkville High School Yorkville | 2,266 | 25.8% | 44.4% |
| Evanston Twp High School Evanston | 3,560 | 35.4% | 59.1% |
| Hampshire High School Hampshire | 2,046 | 32.1% | 46.4% |
Matched among Illinois high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Oswego High School ranks
Among high schools| Measure | This school | In Illinois | In Kendall County |
|---|---|---|---|
| State test proficiency ranked highest first | 41.3% | #179 of 573 | #4 of 6 |
| Enrollment ranked largest first | 2,870 | #21 of 708 | #1 of 6 |
| Students per teacher ranked fewest first | 15.8:1 | #396 of 528 | N/A |
| Diversity index ranked most diverse first | 64.7% | #66 of 537 | N/A |
| Free and reduced lunch ranked highest share first | 30.5% | #498 of 578 | #3 of 6 |
| Enrollment change since 2017-18 ranked fastest growth first | +3.5% | #146 of 191 | N/A |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
2,870
-20 (-1%) vs 2020
+142% since 1990-91, when it was 1,188
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 2,870 | 181.6 | 15.8:1 | 30% (874) |
| 2023-24 | 2,866 | 166.4 | 17.2:1 | 31% (892) |
| 2022-23 | 2,901 | 178.2 | 16.3:1 | 30% (876) |
| 2020-21 | 2,890 | N/A | N/A | N/A |
| 2017-18 | 2,773 | 169.9 | 16.3:1 | 23% (641) |
| 2015-16 | 2,678 | 150 | 17.9:1 | 20% (538) |
| 2010-11 | 2,126 | 106 | 20.1:1 | 21% (456) |
| 2000-01 | 1,832 | 100 | 18.3:1 | N/A |
| 1990-91 | 1,188 | 68 | 17.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Oswego High School.
Since 2017-18: students up 3% (2,773 to 2,870); teachers up 7% (169.9 to 181.6).
About Oswego High School
Oswego High School is a large high school in Oswego, Illinois. The grade span is 9 through 12, and enrollment is 2,870 students. An average school in this group (high schools in Illinois) has about 834 students.
CUSD 308 has 21 schools and 16,766 students, and Oswego High School is one of those schools.
Federal enrollment data show White students as the largest group at Oswego High School, at 49%. Other groups include 31% Hispanic, 11% Black, 5% multiracial, and 4% Asian. By comparison, Kendall County residents are about 65% White. Oswego High School's diversity index is 65%, against a US figure of 70%.
Oswego High School operates with 181.6 full-time-equivalent teachers, a ratio of about 15.8:1. On average, high schools in Illinois have 13.8:1, compared with 15.8:1 here. Oswego High School reports 30% of students eligible for free or reduced-price meals. For comparison, public schools in Kendall County average 32%.
Measured against Illinois public high schools, Oswego High School receives a B-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
Oswego High School is 12.6 points below its predicted average proficiency rate on state tests (41.3% versus 53.9%), which places it in neither the top nor the bottom 10% in Illinois.
Within Kendall County, the median household income is $111,601, 37% of adults hold a bachelor's degree or higher, and about 5% of residents live below the federal poverty line. Besides Oswego High School, Kendall County has 49 other public schools.
The closest public school, Southbury Elementary School, is about 0.8 miles from Oswego High School. There are at least 8 other public schools within five miles. Among the 9 closest schools with test data, this one included, Oswego High School ranks 6th on average proficiency.
The school's federal locale classification is Suburb: Large.
From 2020-21 to 2024-25, enrollment held near 2,870, starting from 2,890.
Discussions about Oswego High School may include school events, clubs, and volunteer needs. Questions from prospective families are welcome too.
Kendall County at a glance
View full county profilePopulation
137,675
Census ACS
Median income
$111,601
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
50
29,773 students
Quick facts
Related schools
Other schools in CUSD 308
- Oswego East High SchoolHigh · 2,758 students
- Traughber Jr High SchoolMiddle · 1,070 students
- Thompson Jr High SchoolMiddle · 832 students
- Lakewood Creek ElementaryElementary · 767 students
- Murphy Junior High SchoolMiddle · 700 students
- Grande Park Elementary SchoolElementary · 687 students
Other schools in Oswego
- Oswego East High SchoolHigh · 2,758 students
- Traughber Jr High SchoolMiddle · 1,070 students
- Thompson Jr High SchoolMiddle · 832 students
- Southbury Elementary SchoolElementary · 676 students
- Fox Chase Elementary SchoolElementary · 661 students
- Plank Junior HighMiddle · 595 students
Other Oswego High schools
One other US public school is named Oswego High. Oswego High School is the largest of the 2.
- OSWEGO HIGH SCHOOLOSWEGO, NY · 1,079 students
Nearby schools
- Southbury Elementary School0.8 mi · 676
- Prairie Point Elementary School1.0 mi · 455
- Thompson Jr High School1.0 mi · 832
- Traughber Jr High School1.0 mi · 1,070
- Fox Chase Elementary School1.4 mi · 661
- Old Post Elementary School1.6 mi · 387
Frequently asked questions
About Oswego High SchoolWhat is the total enrollment at Oswego High School?
Oswego High School enrolls approximately 2,870 students in grades 09-12.
What grades does Oswego High School serve?
Oswego High School serves grades 09-12.
How many students per teacher at Oswego High School?
Approximately 15.8:1 students per teacher at Oswego High School.
What is the racial breakdown of students at Oswego High School?
At Oswego High School, the student body is approximately 49% White, 31% Hispanic, 11% Black, 4% Asian, 5% Two or more.
Is Oswego High School public or private?
Oswego High School is a public K-12 school, overseen by CUSD 308.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.