Boarding School Review - Established 2003

St. John's Northwestern

5.00 (4 reviews)
1101 Genesee Street Delafield WI 53018
Tel: (262) 646-7199
stjohnsnorthwestern.org
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Quick Facts (26-27)

  • Grades: 7-12, PG
  • Enrollment: 235 students
  • Yearly Tuition (Boarding Students): $61,200
  • Yearly Tuition (Day Students): $27,600
  • Acceptance rate: 84%
  • Average class size: 12 students
  • Application Deadline: None / Rolling
  • Source: Verified school update
St. John's Northwestern Photo #4 - Fireworks on graduation weekend.
St. John's Northwestern Photo #5 - Proud parents at a ceremony!
St. John's Northwestern Photo #6 - Varsity soccer celebrates a goal in the 2024 playoffs!
St. John's Northwestern Photo #7 - College & Career Counselor Cat Lewis enjoying a cookout with her students!
St. John's Northwestern Photo #8 - Students smiling and enjoying a Labor Day event!
St. John's Northwestern Photo #9 - Words of wisdom from coach!
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About the School

  • St. John's Northwestern has been shaping the minds and developing the character of students since 1884.
  • Academy alumni have attended notable colleges and universities.
  • As a college preparatory and leader development, boarding and day school for young men and women in grades 7 through 12, St. John's Northwestern is a safe, structured environment that provides each student a foundation for life with specialized programs that are built with future aspirations in mind.
  • St. John's Northwestern continually enhances our AP honors classes, dual credit offerings, and specialty programs such as our Engineering, Robotics, and Aviation (E.R.A) program.
  • Surrounded by English gothic-style architecture, broad lawns, and towering trees, students living within the historic campus are immersed in a safe and secure environment in which they build self-esteem, self-discipline, academic ,focus and intellectual curiosity that allows them to "work hard, play hard, pray hard."

Quick Facts (26-27)

  • Grades: 7-12, PG
  • Enrollment: 235 students
  • Yearly Tuition (Boarding Students): $61,200
  • Yearly Tuition (Day Students): $27,600
  • Acceptance rate: 84%
  • Average class size: 12 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Upcoming Events and News

  • SJN Cadet Allison Belt Receives Prestigious Legion of Valor Bronze Cross for Achievement - 11/10/2026
    SJN is proud to announce that Cadet Allison Belt of Pewaukee Wisconsin has been selected to recive the Legion of Valor Broze Cross of Achievement.
  • St. John’s Northwestern Senior Evelyn Stransky Completes First Solo Flight - 11/10/2026
    St. John's Northwestern senior Evelyn Stransky recently completed her first solo flight, marking a significant milestone toward earning her private pilot license and pursuing a career in commercial aviation.
  • St. John’s Northwestern Launches Expanded Aeronautics Program with Congressional Visit and Ribbon Cutting - 11/10/2026
    St. John's Northwestern will host a congressional delegation and a ribbon-cutting ceremony on October 15, 5 p.m. to celebrate the expansion of its aeronautics program and officially open its new ...moreflight simulation lab. hide
  • St. John’s Northwestern Welcomes Austrian Students for Cultural Exchange - 09/16/2026
    St. John's Northwestern (SJN) will welcome students from Austria's BG/BRG St. Veit/Glan next week, continuing the school's first cultural exchange program and bringing friendships formed abroad to its Wisconsin campus. ...moreEarlier this year, a group of SJN students traveled to Austria to experience life and learning in another country. Now, students from the Austrian partner school will make the return visit, giving SJN students an opportunity to welcome their peers and share their own school, traditions and community. hide
  • St. John’s Northwestern Student Completes Prestigious Internship with Ecuador’s Ministry of National Defense - 07/07/2026
    St. John's Northwestern is proud to recognize Cadet Juan Emilio Paulson for successfully completing a prestigious summer internship with Ecuador's Ministry of National Defense, where he gained firsthand experience in ...moregovernment leadership, national security, and public service. hide
  • St. John’s Northwestern Announces Alumnus Brandin Podziemski as 2026 Commencement Speaker - 05/04/2026
    St. John's Northwestern is proud to welcome back one of its own, Brandin Podziemski, as the keynote speaker for the Academy's 2026 Commencement Ceremony.Now a standout guard for the Golden ...moreState Warriors, Podziemski has quickly built a reputation for his work ethic, leadership, and team-first approach. His return to campus is a full-circle moment and a powerful reminder of the impact of an SJN education. hide
  • St. John’s Northwestern Students Earn Top Honors at State Solo & Ensemble Festival - 04/28/2026
    Three students from St. John's Northwestern delivered standout performances at the Wisconsin School Music Association State Solo & Ensemble Festival this past Saturday, earning top placements at the highest level ...moreof competition.To qualify for the State Festival, students must first earn a starred first rating in Class A, the most advanced classification, requiring exceptional precision, discipline, and musicality.Representing St. John's Northwestern at State were:
    Everett Mayers, trumpet - First Place
    Youen Shi, tenor saxophone - Second Place
    Dhruv Hardbarger, trombone - Second Place     hide
  • St. John’s Northwestern Raiders Achieve Historic 3rd Place Finish at National Championship - 04/20/2026
    St. John's Northwestern's JROTC Raiders team has earned its highest finish in school history, placing 3rd overall in the Masters Division at the 2025 U.S. Army JROTC National Raider Challenge ...moreheld at Fort Knox.Competing against more than 270 teams from across the nation, the 17-member team rose to the top in one of the most physically and mentally demanding competitions in the country. The Raider Challenge is a premier national event designed to test cadets' physical fitness, teamwork, and leadership under pressure through multi-day, high-intensity events. hide
  • ...read more

Top Rankings

St. John's Northwestern ranks among the top 20 boarding schools (out of 268 schools) for:

Category
Attribute
Affordability
High percentage of students on financial aid

School Overview

2026 School Data
St. John's Northwestern
Boarding School Avg.
School Focus
College-Prep Military
College Preparatory
Grades Offered
7-12, PG
8-12
School Type
Co-ed
Co-ed
ADD/ADHD Support
Yes
Yes
Dual Language Immersion Program
Yes
Yes
Secondary Immersion Language
Spanish
n/a
Religious Affiliation
Episcopal
Non-denominational
Year Founded
1884
1906
Campus Size
80 acres
130 acres
Last Day of School
Fri. May 21, 2027
School Motto
Lead Boldly. Work United. Stand Strong

Student Body

Enrollment
235 students
319 students
% Students of Color
24%
28%
% International Students
38%
21%
% Students Boarding
90%
66%
Average SAT Score
1130
(Out of 1600)
* National Avg. »View
Average ACT score
25
(Out of 36)
*National Avg. »View
Offers Post-Grad Year
Yes
No

Academic Profile

Saturday Classes
No
No
Classroom Dress Code
Formal
Uniforms
Casual
Average Class Size
12 students
12
* National Avg. »18
Student-Teacher Ratio
13:1
7:1
ESL Courses Offered
Yes
Yes
% Faculty with Advanced Degree
75%
73%
Summer Program Offered
Yes
Yes
Summer Program Details
View Summer Program Details
Accreditations
Independent Schools Association of the Central States (ISACS)
# of AP Courses Offered
15
18
Courses
Calculus Chemistry
Literature and Composition Physics
Statistics U.S. History
Biology

Tuition & Financial Aid

Yearly Tuition
(Boarding Students)
$61,200
$71,900
Yearly Tuition
(Day Students)
$27,600
$40,000
Tuition international students
$68,000
$59,000
Yearly Tuition
(5 Day Boarding)
$50,300
$50,000
Summer Program Cost
$1,200
(stjohnsnorthwestern.org)
% Students on Financial Aid
80%
40%
Merit Scholarships Offered
Yes
Weekly

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Admissions

Application Deadline
None / Rolling
Jan. 15
Acceptance Rate
84%
64%
Director of Admissions
Juan Garcia
Application URL
Online Application

Sports

# Interscholastic Sports Offered
20
17
Sports
Alpine SkiingBaseball
BasketballCross Country
Cross Country RunningDrill Team
FootballGolf
Ice HockeyLacrosse
MarkmanshipMarksmanship
RiflerySoccer
SwimmingSwimming and Diving
TennisTrack
Track and FieldWrestling
Colors
Red, Gold, Navy
School Mascot
Lancer

Extracurriculars

Total Extracurricular Organizations
18
23
Extracurriculars
Club or Organization:
Culture ClubDebate Team
DECADungeons and Dragons Club
German ClubJROTC
Model United NationsNational Honor Society
National Junior Honor SocietyRobotics Club
Science OlympiadSCUBA club
Spanish ClubTrap Shooting
Yearbook Club


Arts and Music Programs:
Art Club


Recreational Athletic Programs:
Basketball Tournaments (DME)Raiders

College Matriculation

College Acceptance Rate
100%
View Matriculation Data

School Notes

  • As a college preparatory and leader development, boarding and day school for young men and women in grades 7 through 12, St. John's Northwestern educates and develops young men and women to be responsible citizens, as well as moral and ethical leaders who are inspired to take advantage of today and tomorrow's opportunities. They achieve this through their foundational pillars of academic excellence, enriching spiritual and character development, outstanding athletic programs, and premier leader development training in a secure, nurturing and inclusive environment.
  • Sample of notable school alumni/alumnae:
    • Daniel Gerber 1916 - Founder and president of Gerber Baby Foods
    • Howard Woodin 1918 - Member of Marquette University Hall of Fame and Green Bay Packers Hall of Fame for football
    • Spencer Tracy 1919 - Distinguished actor; Academy Award winner; appeared in over 70 films
    • Arthur Wermuth 1932 - Major, U.S. Army; World War II hero
    • Edward Noble 1946 - Entrepreneur; developer; and manufacturer; served as a member of President Ronald Regan's staff
    • C. Roosevelt Boettiger 1948 - Grandson of President Franklin D. Roosevelt; U.S. delegate to the United Nations
    • Brandin Podziemski - Podziemski’s path to the NBA (Golden State Warriors) speaks to persistence and growth. He began his collegiate career with the Illinois Fighting Illini before transferring to the Santa Clara Broncos, where he emerged as one of the top players in the country
    • Ty Warner 1962 - Founder and C.E.O. of Beanie Babies, Inc., a leader in the toy industry
    • Jay Graf 1966 - Founder and C.E.O. of Guidant Corp., a leader in the heart monitoring field
    • Martin Torrijos Espino 1981 - Former President of Panama from 2004 to 2009
Source: Verified school update
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Frequently Asked Questions

How much does St. John's Northwestern cost?
St. John's Northwestern's tuition is approximately $61,200 for boarding students and $27,600 for day students.
What is the acceptance rate of St. John's Northwestern?
The acceptance rate of St. John's Northwestern is 84%, which is higher than the boarding school average of 64%.
Who are famous alumni from St. John's Northwestern?
St. John's Northwestern famous alumni include: Daniel Gerber 1916, Howard Woodin 1918, Spencer Tracy 1919, Arthur Wermuth 1932, Edward Noble 1946, C. Roosevelt Boettiger 1948, Brandin Podziemski, Ty Warner 1962, Jay Graf 1966 and Martin Torrijos Espino 1981.
What sports does St. John's Northwestern offer?
St. John's Northwestern offers 20 interscholastic sports: Alpine Skiing, Baseball, Basketball, Cross Country, Cross Country Running, Drill Team, Football, Golf, Ice Hockey, Lacrosse, Markmanship, Marksmanship, Riflery, Soccer, Swimming, Swimming and Diving, Tennis, Track, Track and Field and Wrestling.
Does St. John's Northwestern offer a summer program?
Yes, St. John's Northwestern offers a summer program. Visit their summer school page for more information.
What is St. John's Northwestern's ranking?
St. John's Northwestern ranks among the top 20 boarding schools for High percentage of students on financial aid.
When is the application deadline for St. John's Northwestern?
The application deadline for St. John's Northwestern is rolling (applications are reviewed as they are received year-round).

Student & Alumni Reviews

Review
Description

Class of 2004
5.00
MSOE, UW- Green Bay
SJNMA offers a unique and safe environment. The faculty care about the cadets more than anything else. It's safe location physically located in the suburbs along with on campus security provide a great place. . .

Class of 2012
5.00
College of DuPage
I liked that we had structure. It taught me how to be on time and responsible. I also really liked that it was all guys. It made it easier to learn. Our teachers bent over. . .

Class of 2014
5.00
Marquette University
The military traditions sets the school apart from other more traditional boarding school experiences. Very structured but always surrounded by other cadets in your company that doesn't make it feel like "all work and no. . .
Show more reviews (1 review)
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Quick Facts (26-27)

  • Grades: 7-12, PG
  • Enrollment: 235 students
  • Yearly Tuition (Boarding Students): $61,200
  • Yearly Tuition (Day Students): $27,600
  • Acceptance rate: 84%
  • Average class size: 12 students
  • Application Deadline: None / Rolling
  • Source: Verified school update
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