About Us                                                                                    

Welcome to St. Mary School!

St. Mary School was founded in 1914 by the School Sisters of Notre Dame.  For over one hundred years, the “charism” of that religious community, which is “unity, and educating in all we do and world vision” continues to permeate who we are. 

Hopefully, you will take a few minutes to visit with us online and discover the great opportunities afforded to our students.  We pride ourselves on educating the whole child with a special emphasis on his or her religious formation in the Catholic faith.

You are always welcome to come and see our wonderful school and consider joining our great school family!

Take a look at the St. Mary School History!

St. Mary School 100 Years in Pictures
St. Mary School History

***The link below is the Bishop’s new pastoral letter.  Please click below to access his letter.***
Click here!

Fidelis Care is a Catholic-owned healthcare program supported by the US Conference of Catholic Bishops.  Fidelis has been very supportive of our Catholic schools and communities.  If you would like more information on their healthcare program, please click here.

News & Events                                                                        

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On Wednesday, May 24th, Nursery through Grade 8 will take part in Field Day.  Field Day will be held outside at St. Mary School.  Weather permitting.  If there is rain on this day, the rain date for this event is on Tuesday, May 30th.


Click here

Thursday, May 25th is Ascension Thursday.  School will be closed.


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On Friday, May 26th school will be closed.


In addition to re-registering for the 2017-2018 academic year, please enroll with your home district to ensure textbook information and transportation will be secured for your child for the upcoming school year.  It is very important to check with your home district in order to obtain the correct information. 

Click here for School and Policy Information

This is the image for the news article titled Amazon Smile
arrowsAmazon Smile
We are now on Amazon Smile. Go to and search for St. Mary Church & School in East Islip. 0.5% of the purchase will support St. Mary
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