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SCHOOL COMMUNITY·CHADWICK-MILLEDGEVILLE CUSD 399·NCES 170940005404

Chadwick-Milledgeville Jr HS

100 E 8th St, Milledgeville, IL 61051 · (815) 225-7141 · Carroll County
GRADES 06–12HIGH42-RURALTITLE IREGULAR SCHOOL183 STUDENTS
Enrollment
183
High
DISTRICT 188 · STATE 834
Student : Teacher
9.6:1
19 FTE teachers
DISTRICT 10.6:1 · STATE 13.8:1
Free / Reduced Lunch
43%
79 students
DISTRICT 45% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
35
Grade 7
23
Grade 8
30
Grade 9
30
Grade 10
19
Grade 11
26
Grade 12
20
Student demographics
White
17495%
DISTRICT 92% · STATE 45%
Hispanic
42%
DISTRICT 4% · STATE 29%
Two+
53%
DISTRICT 3% · STATE 5%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
8446%
Female
9954%

School pathway

Feeds from
Chadwick-Milledgeville Elem SchPK05
Based on grade levels within Chadwick-Milledgeville CUSD 399. Attendance zones can vary; confirm enrollment with the district.

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
69.9%
IL avg 51.0% . +2.8pp since 2023
Math
37.3%
IL avg 37.9% . +2.0pp since 2023

What this means: On the IAR + ISA, Illinois's statewide test, about 70 of every 100 students at this school read and write at grade level and about 37 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 3 points since 2023, while math scores are up about 2 points.

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
54.6%
composite math + reading, all grades
Predicted
46.6%
based on IL schools with similar FRL share
Beats by
+8.0pp
above demographic expectation

What this means: About 55% of students here test proficient in math and reading, compared with the roughly 47% 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 →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
183
+23 (+14%) vs 2017
Student : Teacher
9.6:1
was 11.0:1
% White
95%
was 98%
% Asian
0%
was 1%
Source: NCES Common Core of Data

About Chadwick-Milledgeville Jr HS

Chadwick-Milledgeville Jr HS is a secondary school of rural-scale scale in Milledgeville, Illinois, run under Chadwick-Milledgeville CUSD 399, instructing 183 students in grades 6 through 12. Compared to the state average of about 834 students per school, that is 78% smaller than typical.

Across the 2 schools in Chadwick-Milledgeville CUSD 399 (375 students total), Chadwick-Milledgeville Jr HS accounts for its share of the district's footprint.

In terms of who attends, Chadwick-Milledgeville Jr HS records that 95% of students identify as White, making the school strongly White-majority. Beyond that, the school lists 3% multiracial, 2% Hispanic.

On the income-and-resources front, On paper, Chadwick-Milledgeville Jr HS has 19 full-time-equivalent teachers, translating to a class-load average of around 9.6:1. Statewide, the average ratio sits near 13.8:1, putting Chadwick-Milledgeville Jr HS tighter than the state norm the norm. Roughly 43% of students at Chadwick-Milledgeville Jr HS qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

Adjusting for the school's free-and-reduced-lunch share, Chadwick-Milledgeville Jr HS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 46.6%, the actual is 54.6%, a residual of +8.0 points.

In the broader community, Carroll County reports that median household earnings sit near $60,758, 18% of adults hold a bachelor's degree or higher, and the poverty rate sits near 9%. In all, Carroll County runs 7 public schools (combined enrollment of about 1,945 students), of which Chadwick-Milledgeville Jr HS is one.

Nearest neighbor: Chadwick-Milledgeville Elem Sch, around 0.0 miles off. Within ten miles, there are 2 other public schools, a sparser pattern than typical urban areas. On composite proficiency, Chadwick-Milledgeville Jr HS comes 4th of 8 in the immediate cluster, above the nearby-schools average of 48.8%.

Geographically, the school is in a low-density area.

Looking at the recent track record. Chadwick-Milledgeville Jr HS's enrollment has climbed 14% since 2018, when it stood at 160 (now 183). Class-load math has narrowed: from 11.0:1 in 2018 to 9.6:1 in 2025.

On allk12, posts here usually surface around pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.

Carroll County at a glance

View full county profile
Population
15,576
Census ACS
Median income
$60,758
Household, ACS
Bachelor's+
18%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
7
1,945 students

Quick facts

School name
Chadwick-Milledgeville Jr HS
District
Chadwick-Milledgeville CUSD 399
Address
100 E 8th St, Milledgeville, IL 61051
Phone
(815) 225-7141
County
Carroll County
Level
High
Grade range
06–12
Total enrollment
183
Teachers (FTE)
19
Student–teacher ratio
9.6:1
Free/Reduced lunch
79 (43%)
Locale
42-Rural: Distant
NCES ID
170940005404
Charter school
No
Virtual school
No

Related schools

Other schools in Chadwick-Milledgeville CUSD 399
Other schools in Milledgeville
Nearby schools

Frequently asked questions

About Chadwick-Milledgeville Jr HS
What is the total enrollment at Chadwick-Milledgeville Jr HS?
Chadwick-Milledgeville Jr HS enrolls approximately 183 students in grades 06-12.
Is Chadwick-Milledgeville Jr HS an elementary, middle, or high school?
Chadwick-Milledgeville Jr HS is a high school covering grades 06-12.
How many teachers does Chadwick-Milledgeville Jr HS have?
Chadwick-Milledgeville Jr HS employs 19 FTE teachers, for a student-to-teacher ratio of 9.6:1.
What is the student diversity at Chadwick-Milledgeville Jr HS?
Student demographics at Chadwick-Milledgeville Jr HS are roughly 95% White, 2% Hispanic, 3% Two or more.
Who oversees Chadwick-Milledgeville Jr HS?
Chadwick-Milledgeville Jr HS is overseen by Chadwick-Milledgeville CUSD 399 in Carroll County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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