St. Isidore School

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St. Isidore


St. Isidore

St. Isidore School

515 Marcy Ave, Riverhead, NY 11901

Phone | 631-727-1650


An Extension of Your Family

Scholarship • Integrity • Service

Pre-K through Grade 8



St. Isidore


Sometimes the best school is one of the best-kept secrets in town!

St. Isidore School was founded in 1962 and is still going strong today. St. Isidore School (SIS) stands for scholarship, integrity and service. Did you know that students graduating from Catholic high schools were nearly twice as likely as their public school counterparts to receive their college degree? The integrity of our students is developed through the integration of faith and values across the curriculum. Service projects done by the students benefit local, national and worldwide charities.

St. Isidore

Please consider a Catholic education at St. Isidore School for your child. We invite you to visit St. Isidore School in Riverhead and speak to our staff and students about Catholic education and its importance in your child's educational future. 

The mission of St. Isidore School is to develop educational opportunities that instruct and inspire students' spiritual and intellectual development through liturgical, intellectual and social justice experiences.

The community of St. Isidore School strives to create a strong sense of family by embracing our differences and teaching love and caring as Catholic community of learners. 

St. Isidore

A Loving Place to Start

Early Childhood Education programs include activities and experiences that are intended to effect developmental changes in children before they enter elementary school.

The academic focus is on preparing children for entering school with skills in Language, Mathematics and Early Reading.

We work in partnership with Parents to provide a top notch early childhood education in a loving environment.  We actively reinforce the faith and values you live at home and make them an integrated part of everyday school life 


St. Isidore



What does St. Isidore School stand for?



St. Isidore School was established in the Riverhead community in 1962 to instruct and inspire students so that they may have a strong sense of personal responsibility toward God, self and neighbor through liturgical, intellectual and social experiences.


Small class sizes and individualized attention provide opportunities for higher student achievement. 8th grade students are offered Regents courses in Science and Math. St. Isidore School is accredited by the Middle States Association of Colleges and Schools.

“I received a solid academic foundation and learned to treat others as you expect to be treated.” – Brendan H.


St. Isidore School students live their faith every day in school and at home. Gospel values are integrated throughout the curriculum.


The service-oriented projects undertaken by the students remind them of our obligation to others in need in our community—locally and globally.  According to a report released in January 2014 by the National Center for Education Statistics (NCES), students graduating from Catholic schools were nearly twice as likely as their public school counterparts to receive their college degree. In Catholic school, from elementary school forward, the goal is to educate the whole child, in mind, in body and in spirit. If the results of this study are any gauge—it’s working!


Co-Curricular Activities

Instrumental Music Program

Sports: Soccer, Basketball, Bowling,

Baseball and Softball

Afterschool Clubs: Walk to Learn,

Newspaper, Cooking, Engineering,

Intramurals and Drawing

Brookhaven Lab Science Fair

Middle School Traveling Museum

Technology in all classrooms




To arrange for a tour or to talk with the principal or any of the staff, please call (631) 727-1650. Visit us on Facebook at St. Isidore School Riverhead to see what’s happening in our school.




St. Isidore School provides educational opportunities that instruct students to have a sense of God’s love through liturgical, intellectual, and social experiences. The pre-K through eighth grade programs teach a faith-based academic curriculum with enrichment through fine arts, Spanish language education, technology instruction, and physical education. Eighth grade students take Regents exams in math and science. Our students are well prepared to succeed due to the rigorous academics and character building that takes place in our faith-filled environment. Welcome Wednesday tours are available by appointment. Before- and after-school care available.

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