St. Margaret Mary School

Providing excellence in education in the greater Harrisburg Area for over 60 years


Saint Margaret Mary School is renowned in the Harrisburg area for its academic excellence. For the past  60+ years our goal has been to provide the best possible Catholic education for every student. This goal is maintained through a dedicated faculty and staff committed to Catholic education. 


At the present time, St. Margaret Mary School maintains an enrollment of approximately 420 students. Our curriculum is based upon the graded courses of study developed by the Education Office of the Diocese of Harrisburg and approved by the State of Pennsylvania Department of Education.  Saint Margaret Mary School includes a full-day Kindergarten through 8th grade. Our early childhood program includes two days a week morning and afternoon for 3 yr olds as well as a three day a week morning and afternoon Pre-K program. Extended care is available before and after school hours from 6:30 A.M. until 5:30 PM. 

Opportunities for Excellence

Consistent with our mission, our students learn through a well-rounded curriculum including daily religion classes, computer, art, music, physical education and foreign language (Spanish). Advanced Math and Language Arts classes are offered to the 7th and 8th grades.

At St. Margaret Mary School, the children receive an excellent academic training. Education research indicates that nationwide Catholic school students consistently outperform other schools on tests for math, reading and science. The Iowa Test of Basic Skills ranking of St. Margaret Mary School confirms this research. While the graduates of St Margaret Mary School go on to excel in many area high schools the majority of our students go on to attend Bishop McDevitt High School (



Summer Academics

Summer Packets for each grade as well as Supply Lists are located on the school web site on the right hand side of the main page under Summer Academics.

Be sure to visit the Faculty Page to get all the class room updates

School Events

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There are currently no new events, to keep informed check back here often.

Community News

Father Helwig Names New Principal for 2018 2019 School Year

After interviewing several qualified candidates, Mrs. Mary Jo Pronio has been selected to lead St. Margaret Mary School as its new Principal, beginning July 1, 2018.

She succeeds Mrs. Fennessy, who tirelessly and with steadfast commitment, served the school over the past 9 years as Principal.

With grateful hearts we thank Mrs. Fennessy for her years of dedication to the school community and wish Mrs. Pronio the very best as she assumes her new duties.

May God bless them both in the future and continue to guide St. Margaret Mary School in its mission of educating young people along the pathways of knowledge and the ways of the Catholic Faith.

In, Christ,

Father P. Helwig

Mrs. Fennessy Accepts New Teaching Assignment at STMM

SMMS Principal-elect Announcement:  With my recent change of employment at St. Margaret Mary School, from Sixth Grade homeroom teacher to Principal, the vacated position needs to be filled. As my first administrative act as Principal-elect, I have asked Mrs. Fennessy to assume these duties and she has accepted. Mrs. Fennessy will begin her new duties on July 1, 2018. It is a great pleasure to know that Mrs. Fennessy will continue to be an important part of the SMMS family.

 May God bless everyone with a relaxing and safe summer. 

Mrs. Pronio


To view our Changing of the Guard go to Video


Congratulations to the Class of 2018!

Congratulations to the 2018 St Margaret Mary School Graduating Class.  To view the 8th Grade Video, please use the following link:


On Line Auction Now Open

The STMM On line Auction opens at noon on May 29th.  Auction can be found at:

Bidding opened on at 12:00 pm on Mon., May 28, 2018

For information & updates follow us on... #spartangiving
St Margaret Mary School

Bidding will close on at 12:00 pm on Thurs., June 7, 2018

Get all the details on the News to Know page

contact info:

St. Margaret Mary School
2826 Herr Street, Harrisburg, PA 17103

© 2017 St. Margaret Mary School, Harrisburg PA