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| Poly Prep Country Day School | |
|---|---|
 The clock tower atop the main building | |
| Address | |
 | |
9216 Seventh Avenue , New York 11228 United States | |
| Coordinates | 40°36′43″N 74°01′30″W / 40.612°N 74.025°W |
| Information | |
| Type | Independent Country Day School |
| Motto | Virtus victrix fortunae (Virtue is the victor over fate) |
| Established | 1854 (as the Brooklyn Collegiate and Polytechnic Institute) |
| Headmaster | Audrius Barzdukas |
| Faculty | Approx. 270 |
| Grades | N–12 |
| Gender | Co-educational |
| Enrollment | 1,021 |
| Campus | Urban |
| Campus size | 26 acres (110,000 m2) |
| Color(s) | Blue and grey |
| Athletics conference | Ivy Preparatory School League |
| Mascot | Blue Devil |
| Accreditation | NYSAIS |
| Newspaper | The Polygon (Upper School) The Tower Times (Middle School) |
| Yearbook | The Polyglot |
| Affiliation | New York Interschool |
| Website | www |
Poly Prep Country Day School (commonly known as Poly Prep) is an independent, co-educational day school with two campuses in Brooklyn, New York, United States. The Middle School (5th to 8th grades) and Upper School (9th to 12th grades) are located in the Dyker Heights section of Brooklyn, while the Lower School (nursery to 4th grade) is located in Brooklyn's Park Slope neighborhood. Initially founded as part of the Brooklyn Collegiate and Polytechnic Institute (predecessor of the NYU Tandon School of Engineering), Poly Prep now offers classes from nursery school through 12th grade.