Schools in Great River, New York, the US. Schools locations in Great River, New York. Find the nearest schools locations, near you. All types of business services Accounting Finance Insurance Real estate School All schools in Great River St. George's University School 3500 Sunrise Highway, Great River, New York 11739 Write a review Phone Website Directions St. Joseph's College School 3500 Sunrise Highway, Great River, New York 11739 Write a review Phone Directions