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SCHOOL COMMUNITY·GRAFTON SCHOOL DISTRICT·NCES 550561002248

Grafton High

1950 Washington St, Grafton, WI 53024 · (262) 376-5500 · Ozaukee County
GRADES 09–12HIGH31-TOWNREGULAR SCHOOL727 STUDENTS
·
allk12 Grade
Not graded

This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work

Enrollment
727
High
DISTRICT 548 · STATE 475
Student : Teacher
15.6:1
47 FTE teachers
DISTRICT 15.4:1 · STATE 14.6:1
Free / Reduced Lunch
15%
111 students
DISTRICT 16% · STATE 42%
Community
1
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 917724%
Grade 1018425%
Grade 1118125%
Grade 1218525%
Student demographics
31%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 32% · STATE 54% · US 70%
White
59982%
DISTRICT 82% · STATE 65% · US 43%
Hispanic
436%
DISTRICT 6% · STATE 15% · US 30%
Black
193%
DISTRICT 2% · STATE 9% · US 15%
Asian
345%
DISTRICT 5% · STATE 4% · US 6%
Two+
304%
DISTRICT 5% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 1% · 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
38753%
Female
34047%

School pathway

Feeds from
John Long Middle06–08
Based on grade levels within Grafton School District. 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
72.1%
composite math + reading, all grades
Predicted
68.3%
based on WI schools with similar FRL share
Beats by
+3.8pp
above demographic expectation

What this means: About 72% of students here test proficient in math and reading, compared with the roughly 68% typical for Wisconsin 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 Wisconsin'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 Grafton High

Grafton High's state test result (72.1% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Grafton High this school72715.3%72.1%
McFarland High
McFarland
72715.5%70.8%
Pewaukee High
Pewaukee
88910.8%68.2%
De Forest High
DeForest
1,13716.2%56.0%
West De Pere High
De Pere
1,05019.7%61.0%
New Berlin West Middle/High
New Berlin
1,03616.6%72.4%
Matched among Wisconsin 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 Grafton High ranks

Among high schools
MeasureThis schoolIn Wisconsin
State test proficiency
ranked highest first
72.1%#11 of 402
Enrollment
ranked largest first
727#133 of 532
Students per teacher
ranked fewest first
15.6:1#235 of 325
Diversity index
ranked most diverse first
31.3%#146 of 325
Free and reduced lunch
ranked highest share first
15.3%#384 of 418
Enrollment change since 2017-18
ranked steepest decline first
-1.9%#177 of 203
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
727
+40 (+6%) vs 2020
+3% since 1990-91, when it was 709
Student : Teacher
15.6:1
was 15.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2572746.615.6:115% (111)
2023-2472044.916.0:118% (131)
2022-2371545.615.7:118% (127)
2020-216874415.6:116% (109)
2017-1874150.714.6:110% (71)
2015-167634716.2:115% (112)
2010-118195315.4:113% (109)
2000-017555015.1:13% (26)
1990-917095113.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Grafton High.

Since 2017-18: students down 2% (741 to 727); teachers down 8% (50.7 to 46.6).

About Grafton High

Students in Grafton, Wisconsin, attend Grafton High, a large high school. The school runs grades 9 through 12 and enrolls 727 students. By comparison, high schools in Wisconsin enroll about 475 students on average.

Grafton High is part of Grafton School District, where 4 schools serve 2,192 students.

By race and ethnicity, Grafton High is 82% White. Next come 6% Hispanic, 5% Asian, 4% multiracial, and 3% Black. On a 0 to 100 scale, the school's diversity index is 31, compared with 70 nationally.

The school lists 46.6 full-time-equivalent teachers and a student-to-teacher ratio of 15.6:1. Compared with the 14.6:1 average for high schools in Wisconsin, this school's ratio is higher. Free or reduced-price lunch covers 15% of the student body. The figure for public schools in Ozaukee County is close, at 16%.

Grafton High's average proficiency rate across its state test results of 72.1% is 3.8 points above the 68.3% the model predicts from its lunch-eligibility share.

For the population of Ozaukee County, median household income comes to about $96,996, roughly 51% of adults have a four-year degree or more, and about 3% of residents live below the federal poverty line. Ozaukee County's 26 public schools enroll about 12,422 students and include Grafton High.

Of the public schools around it, Grafton High is closest to Kennedy Elementary, about 0.9 miles away. Grafton High has at least 8 other public schools within five miles. Grafton High ranks 7th of 8 among nearby schools on average proficiency, with 72.1% against a local average of 78.9%.

The school's setting, by NCES definition, is Town: Fringe: in a town close to an urbanized area.

The school grew from 687 students in 2020-21 to 727 in 2024-25.

People can post here about homework, tutoring, and testing dates and other school topics. Parents, students, alumni, and staff are welcome to post.

Ozaukee County at a glance

View full county profile
Population
92,966
Census ACS
Median income
$96,996
Household, ACS
Bachelor's+
51%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
26
12,422 students

Quick facts

School name
Grafton High
District
Grafton School District
Address
1950 Washington St, Grafton, WI 53024
Phone
(262) 376-5500
County
Ozaukee County
Level
High
Grade range
09–12
Total enrollment
727
Teachers (FTE)
47
Student–teacher ratio
15.6:1
Free and reduced lunch
111 (15%)
Locale
31-Town: Fringe
NCES ID
550561002248
Charter school
No
Virtual school
No

Related schools

Other schools in Grafton School District
Other schools in Grafton
Other Grafton High schools

4 other US public schools in 5 states are named Grafton High. Grafton High is the 3rd largest of the 5.

Nearby schools

Frequently asked questions

About Grafton High
How large is Grafton High?
Grafton High enrolls approximately 727 students in grades 09-12.
What age range does Grafton High serve?
Grafton High serves students from grade 09 through grade 12.
How many students per teacher at Grafton High?
Approximately 15.6:1 students per teacher at Grafton High.
What is the racial breakdown of students at Grafton High?
At Grafton High, the student body is approximately 82% White, 6% Hispanic, 3% Black, 5% Asian, 4% Two or more.
Is Grafton High public or private?
Grafton High is a public K-12 school, overseen by Grafton School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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