| VAIL FARM ELEMENTARY SCHOOL | LAGRANGEVILLE | Public school | K–5 | 0 |
| UTICA ACADEMY OF SCIENCE CHARTER SCHOOL | FRANKFORT | Public school | K–12 | 0 |
| URBAN SCHOLARS COMMUNITY SCHOOL | BRONX | Public school | PK–5 | 0 |
| URBAN INSTITUTE OF MATHEMATICS | BRONX | Public school | 6–8 | 0 |
| URBAN DOVE TEAM CHARTER SCHOOL IV | NEW YORK | Public school | 10–12 | 0 |
| URBAN DOVE TEAM CHARTER SCHOOL III | ASTORIA | Public school | 10–12 | 0 |
| URBAN DOVE TEAM CHARTER SCHOOL II | BRONX | Public school | 10–12 | 0 |
| URBAN DOVE TEAM CHARTER SCHOOL | BROOKLYN | Public school | 10–12 | 0 |
| URBAN ASSEMBLY UNISON SCHOOL (THE) | BROOKLYN | Public school | 6–8 | 0 |
| URBAN ASSEMBLY SCHOOL OF DESIGN AND CONSTRUCTION | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL OF BUSINESS FOR YOUNG WOMEN | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR THE PERFORMING ARTS | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR MUSIC AND ART | BROOKLYN | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR MEDIA STUDIES | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR LEADERSHIP AND EMPOWERMENT | BROOKLYN | Public school | 6–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR LAW AND JUSTICE (THE) | BROOKLYN | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR GREEN CAREERS (THE) | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR GLOBAL COMMERCE (THE) | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR COLLABORATIVE HEALTHCARE (THE) | BROOKLYN | Public school | 9–12 | 0 |
| URBAN ASSEMBLY SCHOOL FOR APPLIED MATH AND SCIENCE (THE) | BRONX | Public school | 6–12 | 0 |
| URBAN ASSEMBLY NEW YORK HARBOR SCHOOL | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY MAKER ACADEMY | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY INSTITUTE OF MATH AND SCIENCE FOR YOUNG WOMEN | BROOKLYN | Public school | 6–12 | 0 |
| URBAN ASSEMBLY GATEWAY SCHOOL FOR TECHNOLOGY | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY-EARLY COLL HS EMER MD | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY CHARTER SCHOOL FOR COMPUTER SCIENCE | BRONX | Public school | 9–12 | 0 |
| URBAN ASSEMBLY BRONX ACADEMY OF LETTERS (THE) | BRONX | Public school | 6–12 | 0 |
| URBAN ASSEMBLY ACADEMY OF GOVERNMENT AND LAW | NEW YORK | Public school | 9–12 | 0 |
| URBAN ASSEMBLY ACADEMY FOR FUTURE LEADERS | NEW YORK | Public school | 6–8 | 0 |
| URBAN ACTION ACADEMY | BROOKLYN | Public school | 9–12 | 0 |
| URBAN ACADEMY LABORATORY HIGH SCHOOL | NEW YORK | Public school | 9–12 | 0 |
| Upton Lake Christian School | Clinton Corners | Private school | K–12 | 0 |
| UPPER NYACK SCHOOL | UPPER NYACK | Public school | K–5 | 0 |
| UNQUA ELEMENTARY SCHOOL | MASSAPEQUA | Public school | K–5 | 0 |
| UNIVERSITY PREPARATORY CHARTER SCHOOL FOR YOUNG MEN | ROCHESTER | Public school | 6–12 | 0 |
| UNIVERSITY PREP CHARTER MIDDLE SCHOOL | BRONX | Public school | 5–8 | 0 |
| UNIVERSITY PREP CHARTER HIGH SCHOOL | BRONX | Public school | 9–12 | 0 |
| UNIVERSITY NEIGHBORHOOD MIDDLE SCHOOL | NEW YORK | Public school | 6–8 | 0 |
| UNIVERSITY NEIGHBORHOOD HIGH SCHOOL | NEW YORK | Public school | 9–12 | 0 |
| UNIVERSITY HEIGHTS SECONDARY SCHOOL-BRONX COMMUNITY COLLEGE | BRONX | Public school | 9–12 | 0 |
| Universal School | Buffalo | Private school | K–12 | 0 |
| UNITY PREPARATORY CHARTER SCHOOL OF BROOKLYN | BROOKLYN | Public school | 6–12 | 0 |
| UNITY DRIVE KINDERGARTEN-PRE K CENTER | CENTEREACH | Public school | PK–K | 0 |
| UNITY CENTER FOR URBAN TECHNOLOGIES | NEW YORK | Public school | 9–12 | 0 |
| United Talmudical Academy-torah V'yirah | Brooklyn | Private school | K–3 | 0 |
| United Talmudical Academy-torah V'yirah | Brooklyn | Private school | 7–8 | 0 |
| United Talmudical Academy Of Boro Park | Brooklyn | Private school | K–12 | 0 |
| United Talmudical Academy | Monsey | Private school | K–12 | 0 |
| United Talmudial Academy Of Boro Park | Brooklyn | Private school | 1–6 | 0 |
| United Nations Intl School | Jamaica | Private school | K–8 | 0 |