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SCHOOL COMMUNITY·WATERLOO CUSD 5·NCES 174107004113

Waterloo High School

505 E Bulldog, Waterloo, IL 62298 · (618) 939-3455 · Monroe County
GRADES 09–12HIGH31-TOWNREGULAR SCHOOL876 STUDENTS
Enrollment
876
High
DISTRICT 553 · STATE 834
Student : Teacher
17.1:1
51 FTE teachers
DISTRICT 16.2:1 · STATE 13.8:1
Free / Reduced Lunch
20%
175 students
DISTRICT 21% · 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

GradeStudentsShare
Grade 920924%
Grade 1022926%
Grade 1121625%
Grade 1222225%
Student demographics
14%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 13% · STATE 69% · US 70%
White
81393%
DISTRICT 93% · STATE 45% · US 43%
Hispanic
243%
DISTRICT 3% · STATE 29% · US 30%
Black
20%
DISTRICT 0% · STATE 16% · US 15%
Asian
20%
DISTRICT 0% · STATE 6% · US 6%
Two+
314%
DISTRICT 3% · STATE 5% · US 5%
Native American
40%
DISTRICT 0% · STATE 0% · US 1%
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
45051%
Female
42649%

School pathway

Feeds from
Waterloo Junior High School06–08
Based on grade levels within Waterloo CUSD 5. Attendance zones can vary; confirm enrollment with the district.

Discussions

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BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
53.7%
composite math + reading, all grades
Predicted
60.0%
based on IL schools with similar FRL share
Beats by
-6.3pp
below demographic expectation

What this means: About 54% of students here test proficient in math and reading, compared with the roughly 60% 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 Waterloo High School

Waterloo High School's state test result (53.7% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Waterloo High School this school87620.0%53.7%
Metamora High School
Metamora
89622.1%57.5%
Central Comm High School
Breese
62919.6%58.3%
Freeburg Community High School
Freeburg
68918.1%57.1%
Geneseo High School
Geneseo
79424.4%50.9%
Triad High School
Troy
1,21816.2%60.1%
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 Waterloo High School ranks

Among high schools
MeasureThis schoolIn Illinois
State test proficiency
ranked highest first
53.7%#68 of 573
Enrollment
ranked largest first
876#245 of 708
Students per teacher
ranked fewest first
17.1:1#472 of 528
Diversity index
ranked most diverse first
13.7%#446 of 537
Free and reduced lunch
ranked highest share first
20.0%#551 of 578
Enrollment change since 2017-18
ranked fastest growth first
+8.7%#79 of 191
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 2024-25
Enrollment
876
+21 (+2%) vs 2020
+68% since 1990-91, when it was 520
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2587651.117.1:120% (175)
2023-2487950.817.3:120% (176)
2022-238955117.6:120% (180)
2020-21855N/AN/AN/A
2017-1880650.815.9:118% (143)
2015-168755017.5:121% (188)
2010-118915217.1:115% (130)
2000-018044816.8:1N/A
1990-915203415.3:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Waterloo High School.

Since 2017-18: students up 9% (806 to 876); teachers up 1% (50.8 to 51.1).

About Waterloo High School

Waterloo High School sits in Waterloo, Illinois, and is classified as a high school. The school had 876 students in grades 9 through 12 in 2024-25.

Waterloo CUSD 5 has 2,767 students in 5 schools, and Waterloo High School is one of those schools.

White students are the large majority at Waterloo High School, with 93% of enrollment. Enrollment also includes 4% multiracial and 3% Hispanic. The county population is about 96% White, within a few points of the school. Waterloo High School has a diversity index of 14%, compared with 70% for all US public school students.

Staffing totals 51.1 full-time-equivalent teachers, and the student-to-teacher ratio is 17.1:1. That ratio is over the 13.8:1 average for high schools in Illinois. The free or reduced-price lunch rate at Waterloo High School is 20%. That is close to the 19% average for public schools in Monroe County.

On the allk12 BeatsExpectations measure, Waterloo High School is 6.3 points below the average proficiency rate on state tests predicted for its free or reduced-price lunch share: 53.7% actual, 60.0% predicted. That is outside both the top and bottom 10% in Illinois.

Among Monroe County residents, median household income is about $102,880, the share of adults with a bachelor's degree or higher is 39%, and about 4% of people live in poverty. Waterloo High School is one of 14 public schools in Monroe County, which together enroll about 5,006 students.

Of nearby public schools, Gardner Elementary School is the closest, at about 1.2 miles. The count of other public schools within five miles is 4. Of 7 schools in the immediate area with test results, Waterloo High School ranks 4th on average proficiency.

Its location is classified as Town: Fringe by the National Center for Education Statistics.

Enrollment at Waterloo High School was 855 in 2020-21 and 876 in 2024-25, a change of less than 3%.

Families, students, and staff can use this page to discuss sports schedules, lunch menus, and spirit week at Waterloo High School. Anyone with firsthand experience at this school can post or comment.

Monroe County at a glance

View full county profile
Population
35,036
Census ACS
Median income
$102,880
Household, ACS
Bachelor's+
39%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
14
5,006 students

Quick facts

School name
Waterloo High School
District
Waterloo CUSD 5
Address
505 E Bulldog, Waterloo, IL 62298
Phone
(618) 939-3455
County
Monroe County
Level
High
Grade range
09–12
Total enrollment
876
Teachers (FTE)
51
Student–teacher ratio
17.1:1
Free and reduced lunch
175 (20%)
Locale
31-Town: Fringe
NCES ID
174107004113
Charter school
No
Virtual school
No

Related schools

Other schools in Waterloo CUSD 5
Other schools in Waterloo
Other Waterloo High schools

4 other US public schools in 5 states are named Waterloo High. Waterloo High School is the largest of the 5.

Nearby schools

Frequently asked questions

About Waterloo High School
How large is Waterloo High School?
Waterloo High School enrolls approximately 876 students in grades 09-12.
What grades does Waterloo High School serve?
Waterloo High School serves grades 09-12.
How many students per teacher at Waterloo High School?
Approximately 17.1:1 students per teacher at Waterloo High School.
How diverse is Waterloo High School?
Waterloo High School reports a student body of 93% White, 3% Hispanic, 0% Black, 0% Asian, 4% Two or more.
Who oversees Waterloo High School?
Waterloo High School is overseen by Waterloo CUSD 5 in Monroe County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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