EntityQ964693· pop 16· linked from 104 articlesJefferson ValleySign in to savecensus-designated place in New York, USAConnectionsUnited States Census BureauEntityWestchester CountyEntityBriarcliff ManorEntityNew YorkEntitytime zoneEntitygeographic coordinate systemEntityU.S. stateEntityDaylight saving timeConceptYonkersEntityQ5390EntityUTC−04:00Entitytelephone numbering planEntityWhite PlainsEntityNew RochelleEntitypoverty lineEntityPutnam CountyEntityMount VernonEntityPeekskillEntityEastern Time ZoneEntitycensus-designated place in the United StatesEntityCategoriesCensus-designated places in New York (state)Yorktown, New York