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Grafton High

Public Grades 9-12
14th
SchoolDigger Rank ?
of 431 Wisconsin High Schools
Better than 97% of Wisconsin high schools
Summary

Grafton High is a public high school located in Grafton, Wisconsin, serving grades 9-12 with a total enrollment of 720 students. The school is part of the Grafton School District, which is ranked 13th out of 426 districts in Wisconsin and has a 5-star rating from SchoolDigger.

Grafton High consistently ranks among the top high schools in Wisconsin, with a statewide ranking between 14th and 41st over the past 10 years. The school has maintained a 5-star rating from SchoolDigger for most of this period, indicating excellent academic performance. Grafton High's students consistently outperform the state averages in proficiency rates for the Forward Exam and ACT assessments, and the school has maintained high four-year graduation rates ranging from 90.4% to 98.8% over the past few years.

When compared to nearby high schools, such as Cedarburg High, Grafton High stands out as a top performer. Cedarburg High, located just 3.3 miles away, is also a highly ranked school (8th in 2024-2025) but has slightly lower test scores and a higher percentage of free/reduced-price lunch recipients than Grafton High. While Grafton High's overall performance is excellent, the school has seen a slight dip in its statewide ranking and a higher chronic absenteeism rate in recent years, which could be an area for the school to focus on to maintain its high level of achievement.

727
Students ?
15.6
Student/teacher ratio ?
$13,571
Per pupil spending ?
15.3%
Free/discounted lunch ?
 1950 Washington St
       Grafton, WI  53024-2103

(262) 376-5500

District: Grafton School District


Feeder schools for Grafton High:

Elementary:    Kennedy Elementary
    Woodview Elementary
Middle:    John Long Middle
Racial breakdown:

White:
82.4%
Hispanic:
5.9%
Asian:
4.7%
more
 See top rated Wisconsin high schools

 Compare Grafton High to nearby high schools!
At a glance
Ranking trend: Improving — 82nd percentile in 2015 → 97th in 2025
Strengths
Test scores above the Wisconsin average (72% vs 46% meeting standards)
Ranks in the top 3% of Wisconsin high schools
99% graduate in 4 years — above the Wisconsin average (92%)
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2024-2025) ?
This school72%
District avg72%
Wisconsin avg46%
14th of 431
Wisconsin public high schools ?
Top 3%▲ up 15 pts since 2015
From top 18% (2015) to top 3% (2025)
See the entire ranking list of Wisconsin High Schools →
SchoolDigger rating ?
13th of 426Grafton School District among Wisconsin districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankWisconsin percentileRating
202594.714 of 43196.8%★★★★★
202492.618 of 43195.8%★★★★★
202387.234 of 41591.8%★★★★★
202282.841 of 39189.5%★★★★☆
202187.434 of 39091.3%★★★★★
201989.724 of 40094.0%★★★★★
201890.721 of 41094.9%★★★★★
201786.235 of 41091.5%★★★★★
201689.626 of 40893.6%★★★★★
201573.186 of 46681.5%★★★★☆
201482.032 of 46293.1%★★★★★
201375.170 of 45784.7%★★★★☆
201278.643 of 45290.5%★★★★★
201177.054 of 44587.9%★★★★☆
201067.2155 of 45065.6%★★★☆☆
200963.1169 of 43861.4%★★★☆☆
200874.273 of 43783.3%★★★★☆
200775.154 of 28180.8%★★★★☆
200682.816 of 29294.5%★★★★★
200579.730 of 28789.5%★★★★☆
200482.218 of 27593.5%★★★★★

Asian

YearAvg scoreStatewide rankWisconsin percentileRating
201838.431 of 5139.2%★★☆☆☆

Disabled

YearAvg scoreStatewide rankWisconsin percentileRating
202278.45 of 2982.8%★★★★☆
201836.924 of 4040.0%★★☆☆☆

Female

YearAvg scoreStatewide rankWisconsin percentileRating
202594.38 of 35897.8%★★★★★
202488.218 of 35394.9%★★★★★
202268.593 of 34372.9%★★★★☆
202179.450 of 33284.9%★★★★☆
201988.126 of 34392.4%★★★★★
201890.020 of 35594.4%★★★★★

Hispanic

YearAvg scoreStatewide rankWisconsin percentileRating
202578.722 of 12682.5%★★★★☆
202442.466 of 11944.5%★★☆☆☆
202381.713 of 9786.6%★★★★☆
202286.48 of 8690.7%★★★★★
202144.736 of 6847.1%★★☆☆☆
201994.04 of 8695.3%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankWisconsin percentileRating
202593.415 of 33595.5%★★★★★
202491.49 of 32697.2%★★★★★
202367.755 of 27179.7%★★★★☆
202278.926 of 25089.6%★★★★☆
202171.342 of 22681.4%★★★★☆
201972.345 of 25182.1%★★★★☆
201875.435 of 25586.3%★★★★☆

Male

YearAvg scoreStatewide rankWisconsin percentileRating
202593.114 of 38096.3%★★★★★
202491.718 of 36595.1%★★★★★
202388.527 of 35992.5%★★★★★
202286.229 of 34791.6%★★★★★
202187.028 of 33491.6%★★★★★
201986.731 of 35491.2%★★★★★
201887.331 of 37391.7%★★★★★

Multi-racial

YearAvg scoreStatewide rankWisconsin percentileRating
202565.523 of 8171.6%★★★★☆

White

YearAvg scoreStatewide rankWisconsin percentileRating
202594.314 of 28595.1%★★★★★
202493.112 of 30096.0%★★★★★
202380.441 of 27184.9%★★★★☆
202275.243 of 26984.0%★★★★☆
202185.528 of 26689.5%★★★★☆
201983.835 of 26686.8%★★★★☆
201888.828 of 26189.3%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2025)98th percentile~ school
Male (2025)96th percentile~ school
Low Socio Economic Status (2025)96th percentile~ school
White (2025)95th percentile~ school
Disabled (2022)83rd percentile-7 vs school
Hispanic (2025)83rd percentile-14 vs school
Multi-racial (2025)72nd percentile-25 vs school
Asian (2018)39th percentile-56 vs school
By subject vs Wisconsin (2024-2025) ?
Social Studies77%+30 vs state
Science73%+30 vs state
English Language Arts72%+23 vs state
Mathematics67%+25 vs state

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Frequently Asked Questions about Grafton High

In the 2024-25 school year, 727 students attended Grafton High.

Yes! Grafton High is one of the best high schools in the state. It ranks 14th of 431 Wisconsin high schools.

Grafton High is fed by the following schools:

Elementary : Kennedy Elementary
Elementary : Woodview Elementary
Middle : John Long Middle

Students at Grafton High are 82% White, 6% Hispanic, 5% Asian, 4% Two or more races, 3% African American.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Wisconsin Department of Public Instruction.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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