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SCHOOL COMMUNITY·WILLIAMSVILLE CUSD 15·NCES 174248004272

Williamsville Jr High School

500 S Walnut St, Williamsville, IL 62693 · (217) 566-3600 · Sangamon County
GRADES 05–08MIDDLE22-SUBURBREGULAR SCHOOL444 STUDENTS
A-
allk12 Grade
Scored higher than 83% of Illinois public middle schools
  • ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B+Beats 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 middle schools

Enrollment
444
Middle
DISTRICT 486 · STATE 462
Student : Teacher
14.3:1
31 FTE teachers
DISTRICT 14.5:1 · STATE 13.0:1
Free / Reduced Lunch
18%
80 students
DISTRICT 16% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 59421%
Grade 610624%
Grade 713029%
Grade 811426%
Student demographics
14%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 10% · STATE 69% · US 70%
White
41193%
DISTRICT 95% · STATE 45% · US 43%
Hispanic
92%
DISTRICT 1% · STATE 29% · US 30%
Black
61%
DISTRICT 1% · STATE 16% · US 15%
Asian
10%
DISTRICT 0% · STATE 6% · US 6%
Two+
174%
DISTRICT 2% · STATE 5% · US 5%
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
Male
22851%
Female
21649%

School pathway

Students here typically continue to
Williamsville Jr High School→Williamsville High School
Feeds from
Sherman Elementary SchoolPK–04
Based on grade levels within Williamsville CUSD 15. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
82.5%
IL avg 51.0% . +18.8pp since 2023
Math
59.7%
IL avg 37.9% . +17.7pp since 2023

What this means: On the IAR + ISA, Illinois's statewide test, about 83 of every 100 students at this school read and write at grade level and about 60 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 19 points since 2023, while math scores are up about 18 points.

IAR + ISA results by year

School yearEnglish Language ArtsMath
2024-2582.5%59.7%
2023-2463.7%42.0%
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
67.8%
composite math + reading, all grades
Predicted
61.1%
based on IL schools with similar FRL share
Beats by
+6.7pp
above demographic expectation

What this means: About 68% of students here test proficient in math and reading, compared with the roughly 61% 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 Williamsville Jr High School

Williamsville Jr High School's state test result (67.8% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Williamsville Jr High School this school44418.0%67.8%
Millstadt Consolidated School
Millstadt
45321.6%67.3%
Morton Jr High School
Morton
50415.9%72.5%
Rochester Intermediate School
Rochester
39415.2%46.4%
Germantown Hills Middle School
Germantown Hills
37416.8%79.4%
Waterloo Junior High School
Waterloo
61318.3%62.9%
Matched among Illinois middle 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 Williamsville Jr High School ranks

Among middle schools
MeasureThis schoolIn IllinoisIn Sangamon County
State test proficiency
ranked highest first
67.8%#43 of 578#1 of 16
Math proficiency
ranked highest first
59.7%#80 of 640
▲ 59
#1 of 17
no change
Reading proficiency
ranked highest first
82.5%#53 of 640
▲ 100
#1 of 17
▲ 2
Enrollment
ranked largest first
444#334 of 691#7 of 17
Students per teacher
ranked fewest first
14.3:1#406 of 558#8 of 13
Diversity index
ranked most diverse first
14.1%#518 of 560#13 of 13
Free and reduced lunch
ranked highest share first
18.0%#541 of 581#14 of 16
Enrollment change since 2017-18
ranked fastest growth first
+29.1%#17 of 127N/A
Ranked against other public middle 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 2024-25
Enrollment
444
-33 (-7%) vs 2020
+78% since 1990-91, when it was 249
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-254443114.3:118% (80)
2023-2444229.315.1:119% (83)
2022-2347326.318.0:117% (81)
2020-21477N/AN/AN/A
2017-1834420.516.8:110% (34)
2015-163402215.4:114% (48)
2010-113352016.8:19% (31)
2000-013132015.7:1N/A
1990-912491417.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Williamsville Jr High School.

Since 2017-18: students up 29% (344 to 444); teachers up 51% (20.5 to 31).

About Williamsville Jr High School

At 500 S Walnut St in Williamsville, Illinois, Williamsville Jr High School operates as a medium-sized middle school. Enrolled students number 444 students, in grades 5 through 8.

Williamsville Jr High School sits within Williamsville CUSD 15, which has 3 schools and 1,458 students.

White students make up 93% of enrollment at Williamsville Jr High School. Other students are 4% multiracial and 2% Hispanic. That is higher than the 78% White share among all Sangamon County residents. Pick two students at random and there is a 14% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

Williamsville Jr High School employs 31 full-time-equivalent teachers. That gives a ratio of about 14.3:1. The school has more students per teacher than the 13.0:1 average for middle schools in Illinois. Williamsville Jr High School's free or reduced-price lunch eligibility rate is 18%. That is lower than the 48% average for public schools in Sangamon County.

Williamsville Jr High School is graded A- by allk12, scoring above 83% of Illinois public middle schools once test results, poverty-adjusted performance, and the recent trend are combined.

On BeatsExpectations, Williamsville Jr High School is 6.7 points above its prediction, a result in the middle 80% of Illinois schools.

Recent Census Bureau figures for Sangamon County show that the median household income is $75,357, about 37% of adults have at least a bachelor's degree, and the poverty rate is about 9%. Besides Williamsville Jr High School, Sangamon County has 76 other public schools.

Nearest public school: Williamsville High School, about 0.2 miles away. A five-mile radius around the school includes 2 other public schools. Local comparison: Williamsville Jr High School ranks 1st of 9 nearby schools, at 67.8% versus a 48.3% average.

Under the NCES locale system, Williamsville Jr High School is Suburb: Mid-size.

Williamsville Jr High School's enrollment dropped from 477 in 2020-21 to 444 in 2024-25.

Threads on this page can be about sports tryouts, band and choir, and theater. Anyone with firsthand experience at this school can post or comment.

Sangamon County at a glance

View full county profile
Population
194,947
Census ACS
Median income
$75,357
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
77
27,345 students

Quick facts

School name
Williamsville Jr High School
District
Williamsville CUSD 15
Address
500 S Walnut St, Williamsville, IL 62693
Phone
(217) 566-3600
County
Sangamon County
Level
Middle
Grade range
05–08
Total enrollment
444
Teachers (FTE)
31
Student–teacher ratio
14.3:1
Free and reduced lunch
80 (18%)
Locale
22-Suburb: Mid-size
NCES ID
174248004272
Charter school
No
Virtual school
No

Related schools

Other schools in Williamsville CUSD 15
Other schools in Williamsville
Nearby schools

Frequently asked questions

About Williamsville Jr High School
How large is Williamsville Jr High School?
Williamsville Jr High School enrolls approximately 444 students in grades 05-08.
What age range does Williamsville Jr High School serve?
Williamsville Jr High School serves students from grade 05 through grade 08.
How many teachers does Williamsville Jr High School have?
Williamsville Jr High School employs 31 FTE teachers, for a student-to-teacher ratio of 14.3:1.
What is the student diversity at Williamsville Jr High School?
Student demographics at Williamsville Jr High School are roughly 93% White, 2% Hispanic, 1% Black, 0% Asian, 4% Two or more.
Is Williamsville Jr High School public or private?
Williamsville Jr High School is a public K-12 school, overseen by Williamsville CUSD 15.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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