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The Aberdeen Catholic School System is a preK-12 school system with three attendance centers, sponsored by Sacred Heart and St. Mary’s Parishes in Aberdeen, South Dakota. The ACSS provides a comprehensive faith-based education, beginning at age 3 and continuing through high school. Our students exceed local, state and national averages on standardized tests, excel in their co-curricular activities, and contribute many hours of Christian service to the community.

Accredited by the NCA and the State of South Dakota, we follow South Dakota Curriculum standards. Our students and staff are very committed to excellence in academics, activities, and the practice of their faith.

Welcome to our website! Whether you are current parent or student, a graduate, interested parent, or a visitor, we hope you’ll find what you need here. Always feel free to contact us at info@aberdeenroncalli.org

Thanks for visiting!