EntityQ7886858· pop 15· linked from 98 articlesUnionvilleSign in to savecensus-designated place in Butler County, PennsylvaniaConnectionsUnited States Census BureauEntityunincorporated areaEntitycensus-designated place in the United StatesEntity2010 United States CensusEntityPennsylvaniaEntitytime zoneEntitygeographic coordinate systemEntityU.S. stateEntityDaylight saving timeConceptWayback MachineEntityQ5390EntityUTC−04:00EntityButlerEntityButler CountyEntityEastern Time ZoneEntitycounty seatEntityFederal Information Processing StandardEntityGeographic Names Information SystemEntitylist of counties in PennsylvaniaEntityPetroliaEntityCategoriesCensus-designated places in Butler County, PennsylvaniaCensus-designated places in Pennsylvania